Fluid flow field analysis method, analyzer, and analysis system

Abstract

Embodiments of the present application provide a fluid flow field analysis method, an analyzer and an analysis system. The method is applied to a fluid flow field analyzer, which includes a plurality of ultrasonic transducers for mounting outside a measuring pipeline, and the plurality of ultrasonic transducers are distributed along a circumference. The method comprises: controlling each ultrasonic transducer and at least one of the other ultrasonic transducers to form at least one ultrasonic transducer pair according to a scanning mode; acquiring propagation time and distance information between the ultrasonic transducer pairs corresponding to N ultrasonic transducer pairs; determining a fluid flow rate of a path where the ultrasonic transducer pair is located according to the propagation time and the distance information corresponding to the ultrasonic transducer pair for any one of the plurality of ultrasonic transducer pairs; and determining a cross-sectional flow rate trend according to the fluid flow rates of the paths where the N ultrasonic transducer pairs are located. The method can directly capture transient flow field changes so as to enable an operator to measure and analyze the flow field online.

Description

Technical Field

[0001] This application relates to the field of fluid measurement technology, and in particular to a fluid flow field analysis method, analyzer, and analysis system. Background Technology

[0002] Fluid flow fields can clearly show the velocity distribution and variation patterns of fluids in space, transforming abstract flow velocities into intuitive graphical or data mappings. For example, by constructing the flow field of gas inside a pipe, the velocity differences at different locations can be understood.

[0003] Currently, traditional methods for analyzing fluid flow fields mostly rely on software simulation, depending on models and boundary conditions, to approximate the fluid flow situation.

[0004] However, software simulation requires pre-setting parameters such as inlet velocity curves and temperature, which cannot reflect the sudden changes in the flow field caused by fluid changes in real time. Furthermore, it requires a large amount of data and model building, making it difficult to use and time-consuming, which is not suitable for real-time applications in industrial settings. Summary of the Invention

[0005] This application provides a fluid flow field analysis method, analyzer, and analysis system to directly capture transient flow field changes, enabling staff to measure and analyze the flow field online.

[0006] In a first aspect, embodiments of this application provide a fluid flow field analysis method applied to a fluid flow field analyzer, the fluid flow field analyzer including multiple ultrasonic transducers for mounting on the outside of a measuring pipe, the multiple ultrasonic transducers being distributed circumferentially; the method includes:

[0007] According to the scanning mode, each ultrasonic transducer is controlled to form at least one ultrasonic transducer pair with at least one other ultrasonic transducer.

[0008] Acquire ultrasonic data corresponding to N ultrasonic transducer pairs, wherein the ultrasonic data includes: propagation time and distance information between ultrasonic transducer pairs;

[0009] For any one of the multiple ultrasonic transducer pairs, the fluid velocity along the path of the ultrasonic transducer pair is determined based on the propagation time and distance information corresponding to the ultrasonic transducer pair.

[0010] Based on the fluid velocity of the N ultrasonic transducers along their respective paths, the cross-sectional velocity trend is determined, which is used to indicate the fluid velocity distribution in the fluid flow field.

[0011] In one possible implementation, the scanning mode includes a full-circumferential scanning mode and an abnormal flow state scanning mode, the cross-sectional flow velocity trend includes a first flow velocity trend and a second flow velocity trend, and determining the cross-sectional flow velocity trend based on the fluid flow velocity of the N ultrasonic transducers along their respective paths includes:

[0012] Based on the first fluid velocity of the multiple ultrasonic transducers in the full-circumferential scanning mode, the first flow velocity trend is determined;

[0013] Determine whether the first flow velocity trend is uniform;

[0014] When there is non-uniformity in the first flow velocity trend, the scanning mode is determined to be an abnormal flow state scanning mode, and a second flow velocity trend is determined based on the abnormal flow state scanning mode.

[0015] In one possible implementation, determining the second flow velocity trend based on the abnormal flow pattern includes:

[0016] Based on the first flow velocity trend, a region of non-uniform fluid flow velocity is determined from the cross section, and based on the multiple ultrasonic transducers located in the region of non-uniform fluid flow velocity, a number of ultrasonic transducers to be adjusted are determined accordingly.

[0017] The pairing method of the plurality of ultrasonic transducers to be adjusted is redefined to form target ultrasonic transducer pairs, wherein each ultrasonic transducer to be adjusted corresponds to at least two other ultrasonic transducers to be adjusted to form at least two target ultrasonic transducer pairs.

[0018] Based on the corresponding ultrasonic data from the target ultrasonic transducer, the second fluid velocity and the second velocity trend are determined.

[0019] In one possible implementation, the base of the ultrasonic transducer is equipped with an angle adjustment mechanism, and the step of re-determining the pairing method of the plurality of ultrasonic transducers to be adjusted to form a target ultrasonic transducer pair includes:

[0020] The installation spacing of the ultrasonic transducer and the angle adjustment range of the angle adjustment mechanism are obtained, and multiple pairing parameters are determined based on the installation spacing and the angle adjustment range;

[0021] For any one of the plurality of ultrasonic transducers to be adjusted, other ultrasonic transducers to be adjusted with the installation interval number of the ultrasonic transducer to be adjusted as the pairing parameter are taken as the target pairing ultrasonic transducers of the ultrasonic transducer to be adjusted.

[0022] The angle adjustment mechanism of the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer is controlled to adjust the angle to form a target ultrasonic transducer pair.

[0023] In one possible implementation, controlling the angle adjustment mechanism of the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer to perform angle adjustment includes:

[0024] Based on the ultrasonic transducer to be adjusted and the target-paired ultrasonic transducer, the target adjustment angle is determined;

[0025] The angle to be adjusted is determined based on the target adjustment angle, the ultrasonic transducer to be adjusted, and the current installation angle of the target ultrasonic transducer;

[0026] According to the angle to be adjusted, the angle adjustment mechanism of the target ultrasonic transducer is controlled to rotate to adjust the angle of the base of the target ultrasonic transducer, thereby forming a target ultrasonic transducer pair.

[0027] In one possible implementation, the circumferential scanning mode includes a first circumferential scanning mode, which includes a center scanning mode and an edge scanning mode, wherein the plurality of ultrasonic transducer pairs in the circumferential scanning mode include:

[0028] When the scanning mode is the center scanning mode, each ultrasonic transducer and the first paired ultrasonic transducer form a first ultrasonic transducer pair, and the path of the first ultrasonic transducer pair passes through the center of the measuring pipe.

[0029] When the scanning mode is edge scanning mode, the second ultrasonic transducer pair formed by the ultrasonic transducer and the second paired ultrasonic transducer is obtained by adjusting the initial edge scanning path based on a third flow velocity trend, which is determined based on the ultrasonic data corresponding to the first ultrasonic transducer pair.

[0030] In one possible implementation, the circumferential scanning mode includes a second circumferential scanning mode, and the ultrasonic transducer pair includes:

[0031] When the scanning mode is the second full-circumferential scanning mode, the ultrasonic transducer and the third paired ultrasonic transducer form a third ultrasonic transducer pair, and the path of the third ultrasonic transducer pair is a horizontal path or a vertical path.

[0032] Secondly, embodiments of this application provide a fluid flow field analyzer, including: a ring-shaped sensor array and an angle adjustment mechanism;

[0033] The annular sensing array includes multiple ultrasonic transducers for mounting on the outside of the measuring pipe, the multiple ultrasonic transducers being distributed circumferentially.

[0034] The angle adjustment mechanism is installed on the base of each ultrasonic transducer and is used to adjust the angle of the multiple ultrasonic transducers so that the multiple ultrasonic transducers are paired according to the pairing method corresponding to the scanning mode to form at least one ultrasonic transducer pair.

[0035] In the abnormal flow scanning mode, the angle adjustment mechanism is used to adjust the multiple ultrasonic transducers to be adjusted according to the pairing method of the multiple ultrasonic transducers to be adjusted, to form target ultrasonic transducer pairs, wherein each ultrasonic transducer to be adjusted corresponds to at least two other ultrasonic transducers to be adjusted to form at least two target ultrasonic transducer pairs.

[0036] Thirdly, embodiments of this application provide a fluid flow field analysis system, which includes a flow field reconstruction simulation system and a fluid flow field analyzer as provided in the second aspect above, wherein the flow field reconstruction simulation system and the fluid flow field analyzer are communicatively connected.

[0037] A fluid flow field analyzer for determining cross-sectional velocity trends based on ultrasonic transducer pairs and / or target ultrasonic transducer pairs, the cross-sectional velocity trends being determined based on the first aspect as described above and / or various possible implementations of the first aspect;

[0038] The flow field reconstruction simulation system is used to receive the cross-sectional flow velocity trend sent by the fluid flow field analyzer, and simulate the on-site environment and generate a three-dimensional flow field based on the cross-sectional flow velocity trend.

[0039] Fourthly, embodiments of this application provide a fluid flow field analysis device, including: a memory and a processor;

[0040] The memory stores computer-executed instructions;

[0041] The processor executes computer execution instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0042] Fifthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0043] In a sixth aspect, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0044] The fluid flow field analysis method, analyzer, and analysis system provided in this application embodiment control each ultrasonic transducer to form at least one ultrasonic transducer pair with at least one other ultrasonic transducer according to the scanning mode. Adjustments to the ultrasonic transducer pairs are determined according to the scanning mode, improving measurement accuracy. Ultrasonic data corresponding to N ultrasonic transducer pairs are acquired, including propagation time and distance information between the ultrasonic transducer pairs, providing a data basis for subsequent determination of fluid velocity. For any one of the multiple ultrasonic transducer pairs, based on the propagation time of the corresponding ultrasonic transducer pair... By using length and distance information, the fluid velocity of the ultrasonic transducer along its path is determined, obtaining the true average velocity. This avoids the problems of software simulation failing to reflect fluid changes in real time, leading to abrupt changes in the flow field, and requiring a large amount of data and model building. Based on the fluid velocity of N ultrasonic transducers along their paths, the cross-sectional velocity trend is determined, accurately reflecting the flow field velocity distribution. It has high real-time response capability, short measurement cycle, adaptability to various industrial scenarios, strong applicability, and low barrier to entry. It supports real-time monitoring and rapid feedback of industrial processes and can directly capture transient flow field changes, enabling staff to measure and analyze the flow field online. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0046] Figure 1 An installation diagram of a fluid flow field analyzer provided for an embodiment of this application;

[0047] Figure 2 A flowchart illustrating a fluid flow field analysis method provided in this application embodiment. Figure 1 ;

[0048] Figure 3 A pairing diagram of an ultrasonic transducer provided in an embodiment of this application. Figure 1 ;

[0049] Figure 4 A flow velocity simulation illustration provided for an embodiment of this application. Figure 1 ;

[0050] Figure 5 A flowchart illustrating a fluid flow field analysis method provided in this application embodiment. Figure 2 ;

[0051] Figure 6 A pairing diagram of an ultrasonic transducer provided in an embodiment of this application. Figure 2 ;

[0052] Figure 7A pairing diagram of an ultrasonic transducer provided in an embodiment of this application. Figure 3 ;

[0053] Figure 8 This application provides a schematic diagram of the adjustment of an ultrasonic transducer pair according to an embodiment of the present application.

[0054] Figure 9 A flow velocity simulation illustration provided for an embodiment of this application. Figure 2 ;

[0055] Figure 10 A schematic diagram of the structure of a fluid flow field analyzer provided in an embodiment of this application;

[0056] Figure 11 A schematic diagram of the structure of a fluid flow field analysis system provided in this application embodiment;

[0057] Figure 12 A three-dimensional flow field diagram provided for an embodiment of this application;

[0058] Figure 13 This is a schematic diagram of the structure of a fluid flow field analysis device provided in an embodiment of this application.

[0059] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0060] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0061] "Multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0062] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, products, or apparatus.

[0063] It should be noted that, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0064] First, let me explain the terms used in this application:

[0065] Ultrasonic transducer: refers to an energy converter based on the piezoelectric effect, used to transmit and receive ultrasonic waves.

[0066] Fluid flow fields can clearly show the velocity distribution and variation patterns of fluids in space, transforming abstract flow velocities into intuitive graphical or data mappings. For example, by constructing the flow field of gas inside a pipe, the velocity differences at different locations can be understood.

[0067] Currently, traditional methods for analyzing fluid flow fields mostly rely on software simulation, depending on models and boundary conditions, to approximate the fluid flow situation.

[0068] However, software simulation requires pre-setting parameters such as inlet velocity curves and temperature, and cannot reflect the sudden changes in the flow field caused by fluid changes in real time. It also requires a large amount of data and model building, which makes it difficult to use and takes a long time to simulate, making it unsuitable for real-time applications in industrial settings.

[0069] The fluid flow field analysis method provided in this application calculates the fluid velocity along the path of the ultrasonic transducer pair by analyzing the corresponding ultrasonic data. Based on the fluid velocities along the paths of N ultrasonic transducer pairs, the cross-sectional velocity trend is determined. The ultrasonic transducer pair is formed by N ultrasonic transducers installed outside the measuring pipe. This method solves the problems of existing technologies where software simulation cannot reflect abrupt changes in the flow field caused by fluid variations in real time, and the simulation time is long, making it unsuitable for real-time industrial applications.

[0070] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0071] Figure 1 This application provides an embodiment of an installation diagram of a fluid flow field analyzer, as shown below. Figure 1 As shown, the fluid flow field analyzer 10 includes multiple ultrasonic transducers 102 for mounting on the outside of a measuring pipe 101. The multiple ultrasonic transducers 102 are distributed circumferentially, and any two ultrasonic transducers 102 form an ultrasonic transducer pair. The ultrasonic transducers 102 can be mounted on the outside of the measuring pipe 101, for example, by magnetic attraction or external clamping, and are detachable. The ultrasonic transducers can also be mounted on the outside of the measuring pipe 101 using a tooling ring 103, preferably made of 304 stainless steel, which directly wraps around the measuring pipe. Alternatively, the ultrasonic transducers can be directly mounted on the outside of the measuring pipe 101.

[0072] Figure 2 A flowchart illustrating a fluid flow field analysis method provided in this application embodiment. Figure 1 In this embodiment Figure 1 Based on this, a fluid flow field analysis method is described in detail. The fluid flow field analysis method provided in this application is applied to a fluid flow field analyzer, which includes multiple ultrasonic transducers, such as… Figure 1 The installation method shown is to install it on the outside of the measuring pipe, such as... Figure 2 As shown, the method includes:

[0073] S201. According to the scanning mode, control each ultrasonic transducer to form at least one ultrasonic transducer pair with at least one other ultrasonic transducer.

[0074] Understandably, an ultrasonic transducer pair is formed by pairing any two ultrasonic transducers from a plurality of ultrasonic transducers, for example, it could be as follows: Figure 2The pairing method shown is used to form a pair, wherein any one of the ultrasonic transducers in each ultrasonic transducer pair is used to emit a first ultrasonic wave and receive a second ultrasonic wave, the second ultrasonic wave being emitted by the other ultrasonic transducer in the ultrasonic transducer pair.

[0075] According to the scanning mode, determine the pairing method of each ultrasonic transducer, and according to the pairing method, determine at least one paired ultrasonic transducer corresponding to each ultrasonic transducer. Control each ultrasonic transducer and its corresponding at least one paired ultrasonic transducer to adjust and form at least one ultrasonic transducer pair.

[0076] This application does not restrict the pairing method of ultrasonic transducer pairs. It is understood that an ultrasonic transducer can be paired with another ultrasonic transducer to form an ultrasonic transducer pair; or it can be paired with multiple ultrasonic transducers separately to form multiple ultrasonic transducer pairs.

[0077] Figure 3 A pairing diagram of an ultrasonic transducer provided in an embodiment of this application. Figure 1 For example: multiple ultrasonic transducers can be, for example, as follows Figure 3 The 16 ultrasonic transducers shown are designated as ultrasonic transducer 1 to ultrasonic transducer 16. This application does not limit the number of ultrasonic transducers installed. The pairing method for each ultrasonic transducer is determined according to the scanning mode as follows: Figure 3 The ultrasonic transducer pairs are arranged as shown, where dashed lines represent pairs of two ultrasonic transducers, including ultrasonic transducers 1 through 9; ultrasonic transducers 2 through 8… Each ultrasonic transducer is controlled to pair with at least one corresponding paired ultrasonic transducer as follows… Figure 3 The pairing method shown corresponds to the formation of at least one ultrasonic transducer pair.

[0078] S202. Obtain ultrasonic data corresponding to N ultrasonic transducer pairs. The ultrasonic data includes: propagation time and distance information between ultrasonic transducer pairs.

[0079] The propagation time refers to the time difference between when one ultrasonic transducer in an ultrasonic transducer pair emits an ultrasonic signal and when the other ultrasonic transducer receives the ultrasonic signal; the distance information between ultrasonic transducer pairs is determined by the installation distance between the two corresponding ultrasonic transducers in the ultrasonic transducer pair.

[0080] The fluid flow field analyzer drives ultrasonic transducers through electrical signals. In an ultrasonic transducer pair, one ultrasonic transducer emits ultrasonic signals into the fluid, and the other ultrasonic transducer receives ultrasonic signals. The fluid flow field analyzer determines ultrasonic data such as the propagation time of the corresponding N ultrasonic transducer pairs and the distance between the ultrasonic transducer pairs.

[0081] Example: Refer to Figure 3 Ultrasonic transducer 1 and ultrasonic transducer 9 form an ultrasonic transducer pair. When ultrasonic transducer 1 emits an ultrasonic signal, ultrasonic transducer 9 receives the ultrasonic signal. The propagation time is the time difference between emitting and receiving the ultrasonic signal. The distance information between the ultrasonic transducer pair is the installation distance between the two ultrasonic transducers corresponding to the ultrasonic transducer pair.

[0082] S203. For any one of the multiple ultrasonic transducer pairs, determine the fluid velocity along the path of the ultrasonic transducer pair based on the propagation time and distance information corresponding to the ultrasonic transducer pair.

[0083] The fluid includes liquids and gases. Liquids can be, for example, water; gases can be, for example, fuel gas.

[0084] For each ultrasonic transducer pair, the fluid velocity along the path of the ultrasonic transducer pair is determined based on the corresponding propagation time and distance information.

[0085] The propagation duration includes a first propagation duration and a second propagation duration. The first propagation duration is used to indicate the downstream propagation time; the second propagation duration is used to indicate the upstream propagation time; and the propagation duration difference is used to indicate the difference between the first propagation duration and the second propagation duration.

[0086] For each ultrasonic transducer pair, the first propagation duration is determined based on the transmission and reception times of the ultrasonic waves corresponding to the first propagation duration; similarly, the second propagation duration is determined based on the transmission and reception times of the ultrasonic waves corresponding to the second propagation duration.

[0087] Based on the propagation time difference, sound speed, distance information, and the angle between the ultrasonic wave and the fluid flow direction, the fluid velocity corresponding to the path of the ultrasonic transducer is determined.

[0088] The fluid velocity is determined using the following formula:

[0089]

[0090] in, This is distance information; Speed ​​of sound; The fluid velocity; The angle between the ultrasonic wave and the direction of fluid flow; Due to the difference in transmission time.

[0091] S204. Determine the cross-sectional velocity trend based on the fluid velocity of the N ultrasonic transducers along their respective paths.

[0092] Among them, the cross-sectional velocity trend is used to indicate the fluid velocity distribution in the fluid flow field.

[0093] The entire measurement pipeline is simulated based on the fluid flow velocity of each of the N ultrasonic transducers along its path.

[0094] For example: Table 1 shows the data provided in this embodiment based on... Figure 3 The table shows the fluid velocity along the path of the ultrasonic transducer. The ultrasonic transducer pairs are shown in Table 1.

[0095] Table 1:

[0096]

[0097] Figure 4 A flow velocity simulation illustration provided for an embodiment of this application. Figure 1 , Figure 4 This was obtained by simulating the fluid flow velocity along the entire measurement pipeline based on the ultrasonic transducer's path, as shown in Table 1. For example... Figure 4 As shown, the cross-sectional area of ​​the pipe gradually changes from blue to red as the flow velocity increases. Understandably, a greater color change indicates a more uneven fluid flow velocity. Figure 4 In the middle, the flow velocity is faster in the right half.

[0098] This application provides a fluid flow field analysis method that, according to a scanning mode, controls each ultrasonic transducer to form at least one ultrasonic transducer pair with at least one other ultrasonic transducer. Adjustments to the ultrasonic transducer pairs are made according to the scanning mode, improving measurement accuracy. Ultrasonic data corresponding to N ultrasonic transducer pairs are acquired, including propagation time and distance information between the ultrasonic transducer pairs, providing a data basis for subsequent determination of fluid velocity. For any one of the multiple ultrasonic transducer pairs, the propagation time and distance information are used to determine the fluid velocity. Information is used to determine the fluid velocity of the ultrasonic transducer along its path, obtaining the true average velocity. This avoids the problems of software simulation failing to reflect fluid changes in real time, leading to abrupt changes in the flow field, and requiring a large amount of data and model building. Based on the fluid velocity of N ultrasonic transducers along their paths, the cross-sectional velocity trend is determined, accurately reflecting the flow field velocity distribution. It has high real-time response capability, short measurement cycle, adaptability to various industrial scenarios, strong applicability, and low barrier to entry. It supports real-time monitoring and rapid feedback of industrial processes and can directly capture transient flow field changes, enabling staff to measure and analyze the flow field online.

[0099] When the fluid flow field analyzer detects non-uniform flow velocity inside the pipe, it will adjust the transducer pairing method to further determine the flow velocity in order to further determine the non-uniform flow velocity.

[0100] Figure 5 A flowchart illustrating a fluid flow field analysis method provided in this application embodiment. Figure 2 In this embodiment, the scanning modes include a full-circumferential scanning mode and an abnormal flow state scanning mode, and the cross-sectional flow velocity trends include a first flow velocity trend and a second flow velocity trend. This embodiment... Figure 2 Based on the embodiments, a detailed explanation is provided on determining the cross-sectional velocity trend according to the fluid velocity along the path of the N ultrasonic transducers, such as... Figure 5 As shown, the method includes:

[0101] S501. Determine the first flow velocity trend based on the first fluid flow velocity of the multiple ultrasonic transducers in the full circumferential scanning mode.

[0102] In full-circumferential scanning mode, the initial measurement of the flow velocity in the measuring pipe should be performed with a uniform angular distribution across the entire circumference. Theoretically, there are various combinations of ultrasonic transducers, but considering efficiency, the number of initial inspection routes should generally not exceed a preset number. The preset number of initial inspection routes can be 16, or it can be determined based on the actual situation of the measuring pipe.

[0103] Figure 6 A pairing diagram of an ultrasonic transducer provided in an embodiment of this application. Figure 2 ,like Figure 6 As shown, Figure 6 In the diagram, 'a' represents the pairing of ultrasonic transducer pairs in the center scanning mode. Figure 6 In the diagram, b is a pairing diagram of ultrasonic transducers in edge scanning mode, where the dashed line represents two ultrasonic transducers forming an ultrasonic transducer pair.

[0104] In one possible implementation, the circumferential scanning mode includes a first circumferential scanning mode, which includes a center scanning mode and an edge scanning mode. The multiple ultrasonic transducer pairs in the circumferential scanning mode include:

[0105] When the scanning mode is center scanning mode, each ultrasonic transducer and the first paired ultrasonic transducer form a first ultrasonic transducer pair, and the path of the first ultrasonic transducer pair passes through the center of the measuring pipe, for example... Figure 6 The first ultrasonic transducer pair shown in Figure a consists of ultrasonic transducers 1 and 9, and the first ultrasonic transducer pair consists of ultrasonic transducers 2 and 10...

[0106] When the scanning mode is edge scanning mode, the second ultrasonic transducer pair is formed by the ultrasonic transducer and the second paired ultrasonic transducer. The path of the second ultrasonic transducer pair is obtained by adjusting the initial edge scanning path based on the third flow velocity trend, which is determined based on the ultrasonic data corresponding to the first ultrasonic transducer pair.

[0107] When the scanning mode is edge scanning mode, a second timeout transducer pair can be formed based on the initial edge scanning path; alternatively, the initial edge scanning path can be adjusted based on a third flow velocity trend determined from the ultrasonic data corresponding to the first ultrasonic transducer pair, and the ultrasonic transducer pair can be adjusted based on the adjusted initial edge scanning path to form a second ultrasonic transducer pair. If the edge flow velocity changes significantly, the number of edge scanning paths is increased, i.e., the number of second ultrasonic transducer pairs is increased; if the edge flow velocity changes slightly, the number of edge scanning paths is decreased, i.e., the number of second ultrasonic transducer pairs is decreased. By adjusting the initial edge scanning path, the pairing method of multiple ultrasonic transducers in edge scanning mode is obtained. For example... Figure 6 As shown in b, ultrasonic transducers 1, 13, and 5 respectively form the second ultrasonic transducer pair...

[0108] Understandably, in the first full-circumferential scanning mode, the first flow rate trend is determined based on the fluid flow rate of the path by multiple ultrasonic transducers in the center scanning mode and the edge scanning mode.

[0109] In one possible implementation, the circumferential scanning mode further includes a second circumferential scanning mode, and the ultrasonic transducer pair includes:

[0110] The third ultrasonic transducer pair and the fourth ultrasonic transducer pair are arranged in a grid pattern along their respective paths.

[0111] The ultrasonic transducer and the third paired ultrasonic transducer form a third ultrasonic transducer pair, and the paths of the third ultrasonic transducer pair are distributed in a grid pattern. For example, it can be a horizontal path or a vertical path. (Continue to refer to...) Figure 3 The pairing method of multiple ultrasonic transducers is as follows: Figure 3 As shown, for example, it could be ultrasonic transducer 1 and ultrasonic transducer 9, with the path being a vertical path; or it could be ultrasonic transducer 5 and ultrasonic transducer 13, with the path being a horizontal path.

[0112] Understandably, in the second full-circumferential scanning mode, the first flow velocity trend is determined based on the fluid flow velocity along the path by the third ultrasonic transducer.

[0113] S502. Determine whether the first flow velocity trend is uniform;

[0114] The first flow velocity trend is compared with a preset uniformity threshold. If the first flow velocity trend is not greater than the preset uniformity threshold, the first flow velocity trend is determined to be uniform, that is, the flow velocity inside the pipe is uniform, and no further measurement of the fluid flow velocity is required. If the first flow velocity trend is greater than the preset uniformity threshold, the first flow velocity trend is determined to be non-uniform, that is, the flow velocity inside the pipe is non-uniform, there is an abnormal flow state, and further measurement of the fluid flow velocity is required.

[0115] S503. When there is non-uniformity in the first flow velocity trend, the scanning mode is determined to be an abnormal flow scanning mode, and the non-uniform fluid flow velocity region is determined from the cross section according to the first flow velocity trend.

[0116] When there is non-uniformity in the cross-sectional flow velocity trend, the scanning mode is determined to be the abnormal flow state scanning mode. Based on the first flow velocity trend, the region with large changes in fluid velocity inside the pipe is identified as the region with non-uniform fluid velocity.

[0117] For example: continue to refer to Figure 4 ,like Figure 4 In the flow velocity simulation diagram shown, the flow velocity changes greatly in the right half, which is identified as a region with uneven fluid velocity.

[0118] S504. Based on the non-uniform fluid velocity region, determine multiple ultrasonic transducers to be adjusted, determine the pairing method of the multiple ultrasonic transducers to be adjusted, and form a target ultrasonic transducer pair.

[0119] Each ultrasonic transducer to be adjusted corresponds to at least two other ultrasonic transducers to be adjusted, forming at least two target ultrasonic transducer pairs.

[0120] Among them, the ultrasonic transducer to be adjusted is the ultrasonic transducer whose angle needs to be adjusted.

[0121] Because the fluid velocity is uneven in the region of non-uniform fluid flow, it is necessary to further measure the fluid velocity in this region. Therefore, it is necessary to add ultrasonic transducer pairs to the region of non-uniform fluid flow.

[0122] In one possible implementation, the ultrasonic transducer to be adjusted includes multiple ultrasonic transducers located in a region of non-uniform fluid flow velocity.

[0123] In one possible implementation, the base of the ultrasonic transducer is equipped with an angle adjustment mechanism. A detailed description is provided regarding the pairing method for determining multiple ultrasonic transducers to be adjusted, forming a target ultrasonic transducer pair, including:

[0124] The installation spacing of the ultrasonic transducer and the angle adjustment range of the angle adjustment mechanism are obtained. Based on the installation spacing and the angle adjustment range, multiple pairing parameters are determined.

[0125] The pairing parameter is used to indicate the number of intermediate ultrasonic transducers between the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer.

[0126] The angle adjustment of an ultrasonic transducer is limited by the installation spacing of the ultrasonic transducer and the angle adjustment range of the angle adjustment mechanism. Therefore, the actual angle adjustment range of the ultrasonic transducer to be adjusted is first determined based on the installation spacing of the ultrasonic transducer and the angle adjustment range of the angle adjustment mechanism, and multiple pairing parameters are determined based on the installation spacing of the ultrasonic transducer.

[0127] For any one of multiple ultrasonic transducers to be adjusted, other ultrasonic transducers with the same installation interval as the original transducer are designated as target paired ultrasonic transducers. The angle adjustment mechanisms of the original and target paired ultrasonic transducers are controlled to adjust their angles, forming a target ultrasonic transducer pair. This variable-angle ultrasonic transducer layout provides high measurement accuracy for complex flow conditions such as turbulence and eddies.

[0128] For example: Figure 7 A pairing diagram of an ultrasonic transducer provided in an embodiment of this application. Figure 3 ,like Figure 7 As shown, among ultrasonic transducers 1 to 16, ultrasonic transducers 1 to 9 located on the right side of the pipe are the ultrasonic transducers to be adjusted. The dashed lines are used to indicate that the target ultrasonic transducers to be adjusted form target ultrasonic transducer pairs. The pairing parameters include 2, 3, 4, 5, and 6. The target paired ultrasonic transducers corresponding to the ultrasonic transducers to be adjusted are determined according to the pairing parameters. For example, the target paired ultrasonic transducers corresponding to ultrasonic transducer 1 to be adjusted include: target paired ultrasonic transducers 4, 5, 6, 7, and 8.

[0129] In one possible implementation, the angle adjustment mechanism for controlling the angle adjustment of the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer is described in detail, including:

[0130] Based on the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer, the target adjustment angle is determined; according to the target adjustment angle, the current installation angle of the ultrasonic transducer to be adjusted and the target ultrasonic transducer, the angle to be adjusted is determined; according to the angle to be adjusted, the angle adjustment mechanism of the target ultrasonic transducer is controlled to rotate to adjust the angle of the base of the target ultrasonic transducer, thus forming a target ultrasonic transducer pair.

[0131] The target adjustment angle refers to the installation angle after the target ultrasonic transducer is aligned with the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer is adjusted.

[0132] Based on the installation angles of the target ultrasonic transducer (aligned with the transducer to be adjusted), the target paired ultrasonic transducer, and their current installation angles, the difference between the adjusted and current installation angles is determined, and this difference is taken as the angle to be adjusted. The angle adjustment mechanism, which can be controlled by a motor, rotates to adjust the angle of the base of the target ultrasonic transducer, thus forming a target ultrasonic transducer pair.

[0133] For example: Figure 8 This application provides a schematic diagram of the adjustment of an ultrasonic transducer, as shown in the embodiment. Figure 8 As shown, ultrasonic transducer 2, ultrasonic transducer 3, and target ultrasonic transducer 1 are installed on the outside of the measuring pipe. The solid line represents the ultrasonic transducer 1 to be adjusted before adjustment; the dashed line represents the ultrasonic transducer 1 to be adjusted after adjustment. Before adjustment, the ultrasonic transducer 1 to be adjusted (represented by the solid line) is paired with ultrasonic transducer 2 to form an ultrasonic transducer pair. After the angle adjustment mechanism connected to the base of the target ultrasonic transducer is rotated according to the angle to be adjusted, the ultrasonic transducer 1 to be adjusted (represented by the dashed line) is paired with ultrasonic transducer 3 to form the target ultrasonic transducer pair.

[0134] S505. Based on the corresponding ultrasonic data from the target ultrasonic transducer, determine the second fluid velocity and the second velocity trend.

[0135] For example: Table 2 is a table for determining the second fluid velocity based on the ultrasonic data corresponding to the target ultrasonic transducer provided in this embodiment.

[0136] Table 2:

[0137]

[0138]

[0139] Figure 9 A flow velocity simulation illustration provided for an embodiment of this application. Figure 2 , Figure 9 The simulation results were obtained by examining the fluid velocity of the ultrasonic transducer along its path in Table 1 and the second fluid velocity of the target ultrasonic transducer along its path in Table 2, based on the simulation of the entire measurement pipeline. By changing the emission angle and measuring the non-uniform fluid velocity region at high density, the velocity distribution of the non-uniform fluid velocity region inside the pipeline becomes clearer and more intuitive. Figure 9 As shown, the flow velocity inside the pipe is not uniform, with the maximum flow velocity located in the red area in the figure.

[0140] This application provides a fluid flow field analysis method that determines a first flow velocity trend based on the first fluid velocity along the path of multiple ultrasonic transducers in a full-circumferential scanning mode, improving initial inspection efficiency. It then determines whether the first flow velocity trend is uniform; if non-uniformity exists, it identifies non-uniform fluid velocity regions from the cross-section based on the first flow velocity trend; and based on the first flow velocity trend, it identifies multiple ultrasonic transducers to be adjusted according to the multiple ultrasonic transducers located in the non-uniform fluid velocity regions, achieving automatic adjustment of the detection path and improving the accuracy of flow velocity detection and fluid flow field construction. Finally, it re-determines the pairing method of the multiple ultrasonic transducers to be adjusted, forming target ultrasonic transducer pairs so that these pairs are densely packed in the non-uniform fluid velocity regions. Based on the ultrasonic data corresponding to the target ultrasonic transducer pairs, it determines a second fluid velocity and a second flow velocity trend. This method is adaptable to various industrial scenarios, has strong applicability, low usage threshold, and supports real-time monitoring and rapid feedback of industrial processes.

[0141] Figure 10 A schematic diagram of the structure of a fluid flow field analyzer provided in this application embodiment. Figure 1 ,like Figure 10 As shown, the fluid flow field analyzer 100 provided in this embodiment includes: a ring sensor array 1001 and an angle adjustment mechanism 1002;

[0142] The annular sensing array 1001 includes a plurality of ultrasonic transducers 1003 for mounting on the outside of the measuring pipe, the plurality of ultrasonic transducers being distributed along the circumference.

[0143] The angle adjustment mechanism 1002 is installed on the base of each ultrasonic transducer 1003 and is used to adjust the angle of multiple ultrasonic transducers so that the multiple ultrasonic transducers are paired according to the pairing method corresponding to the scanning mode to form at least one ultrasonic transducer pair.

[0144] In the abnormal flow scanning mode, the angle adjustment mechanism 1002 is used to adjust the multiple ultrasonic transducers to be adjusted according to the pairing method of the multiple ultrasonic transducers to be adjusted, to form target ultrasonic transducer pairs, wherein each ultrasonic transducer to be adjusted corresponds to at least two other ultrasonic transducers to be adjusted to form at least two target ultrasonic transducer pairs.

[0145] The fluid flow field analyzer provided in this embodiment can execute the methods provided in the above-described method embodiments. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0146] Figure 11 A schematic diagram of a fluid flow field analysis system provided in this application embodiment is shown below. Figure 11As shown, the fluid flow field analysis system 110 provided in this embodiment includes: a flow field reconstruction simulation system 1101 and a fluid flow field analyzer 100;

[0147] The fluid flow field analyzer 100 is used to determine the cross-sectional flow velocity trend based on the ultrasonic transducer pair and / or the target ultrasonic transducer pair, the cross-sectional flow velocity trend being determined based on the method provided in the above-described method embodiments;

[0148] The flow field reconstruction simulation system 1101 is used to receive the cross-sectional flow velocity trend sent by the fluid flow field analyzer, and simulate the on-site environment and generate a three-dimensional flow field based on the cross-sectional flow velocity trend.

[0149] After velocity calculation and flow field analysis, the flow field reconstruction simulation system 1101 simulates the on-site environment and outputs a three-dimensional flow field.

[0150] For example, Figure 12 This application provides a schematic diagram of a three-dimensional flow field. Figure 12 Based on the fluid flow velocity of the ultrasonic transducer along its path in Table 1, and the fluid flow velocity of the target ultrasonic transducer along its path in Table 2, ... Figure 9 The provided flow velocity simulation diagram is obtained by simulating the entire measurement pipeline.

[0151] The fluid flow field analyzer 1102 is used to execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0152] Figure 13 This is a schematic diagram of a fluid flow field analysis device provided in an embodiment of this application. Figure 13 As shown, the electronic device 130 provided in this embodiment includes at least one processor 1301 and a memory 1302. Optionally, the device 130 further includes a communication component 1303. The processor 1301, memory 1302, and communication component 1303 are connected via a bus 1304.

[0153] In a specific implementation, at least one processor 1301 executes computer execution instructions stored in memory 1302, causing at least one processor 1301 to perform the above-described method.

[0154] The specific implementation process of processor 1301 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0155] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0156] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0157] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0158] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0159] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0160] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0161] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0162] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0163] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0164] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0165] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0166] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0167] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A fluid flow field analysis method, characterized in that, The method is applied to a fluid flow field analyzer, the fluid flow field analyzer including multiple ultrasonic transducers for mounting on the outside of a measuring pipe, the multiple ultrasonic transducers being distributed circumferentially; the method includes: According to the scanning mode, each ultrasonic transducer is controlled to form at least one ultrasonic transducer pair with at least one other ultrasonic transducer, wherein the scanning mode includes a full circumferential scanning mode and an abnormal flow scanning mode. Acquire ultrasonic data corresponding to N ultrasonic transducer pairs, wherein the ultrasonic data includes: propagation time and distance information between ultrasonic transducer pairs; For any one of the multiple ultrasonic transducer pairs, the fluid velocity along the path of the ultrasonic transducer pair is determined based on the propagation time and distance information corresponding to the ultrasonic transducer pair. Based on the fluid velocity of the N ultrasonic transducers along their respective paths, the cross-sectional velocity trend is determined, and the cross-sectional velocity trend is used to indicate the fluid velocity distribution in the fluid flow field. The cross-sectional velocity trend includes a first velocity trend and a second velocity trend. Determining the cross-sectional velocity trend based on the fluid velocity along the path of the N ultrasonic transducers includes: Based on the first fluid velocity of the path of the multiple ultrasonic transducers in the full-circumferential scanning mode, a first velocity trend is determined; it is determined whether the first velocity trend is uniform; when the first velocity trend is non-uniform, the scanning mode is determined to be an abnormal flow scanning mode, and a second velocity trend is determined based on the abnormal flow scanning mode. The determination of the second flow velocity trend based on the abnormal flow state scanning pattern includes: Based on the first flow velocity trend, a region of non-uniform fluid velocity is determined from the cross section; based on the region of non-uniform fluid velocity, a plurality of ultrasonic transducers to be adjusted are determined; the pairing method of the plurality of ultrasonic transducers to be adjusted is determined to form a target ultrasonic transducer pair, wherein each ultrasonic transducer to be adjusted corresponds to at least two other ultrasonic transducers to be adjusted to form at least two target ultrasonic transducer pairs. The base of the ultrasonic transducer is equipped with an angle adjustment mechanism. Determining the pairing method of the plurality of ultrasonic transducers to be adjusted to form a target ultrasonic transducer pair includes: The installation spacing of the ultrasonic transducer and the angle adjustment range of the angle adjustment mechanism are obtained, and multiple pairing parameters are determined based on the installation spacing and the angle adjustment range; For any one of the plurality of ultrasonic transducers to be adjusted, other ultrasonic transducers to be adjusted with the installation interval number of the ultrasonic transducer to be adjusted as the pairing parameter are taken as the target pairing ultrasonic transducers of the ultrasonic transducer to be adjusted. The angle adjustment mechanism of the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer is controlled to adjust the angle to form a target ultrasonic transducer pair; The angle adjustment mechanism controlling the angle adjustment of the ultrasonic transducer to be adjusted and the target paired ultrasonic transducer includes: Based on the ultrasonic transducer to be adjusted and the target-paired ultrasonic transducer, the target adjustment angle is determined; The angle to be adjusted is determined based on the target adjustment angle, the ultrasonic transducer to be adjusted, and the current installation angle of the target ultrasonic transducer; According to the angle to be adjusted, the angle adjustment mechanism of the target ultrasonic transducer is controlled to rotate to adjust the angle of the base of the target ultrasonic transducer, thereby forming a target ultrasonic transducer pair.

2. The method according to claim 1, characterized in that, The ultrasonic transducer to be adjusted includes multiple ultrasonic transducers located in the region of uneven fluid flow velocity.

3. The method according to claim 1, characterized in that, The circumferential scanning mode includes a first circumferential scanning mode, which includes a center scanning mode and an edge scanning mode. The plurality of ultrasonic transducer pairs in the circumferential scanning mode include: The circumferential scanning mode includes a first circumferential scanning mode, which includes a center scanning mode and an edge scanning mode. The multiple ultrasonic transducer pairs in the circumferential scanning mode include: When the scanning mode is the center scanning mode, each ultrasonic transducer and the first paired ultrasonic transducer form a first ultrasonic transducer pair, and the path of the first ultrasonic transducer pair passes through the center of the measuring pipe. When the scanning mode is edge scanning mode, the second ultrasonic transducer pair formed by the ultrasonic transducer and the second paired ultrasonic transducer is located on a path determined based on an initial edge scanning path or obtained by adjusting the initial edge scanning path based on a third flow velocity trend, which is determined based on the ultrasonic data corresponding to the first ultrasonic transducer pair.

4. The method according to claim 1, characterized in that, The full-circumference scanning mode includes a second full-circumference scanning mode, and the ultrasonic transducer pair includes: The third ultrasonic transducer pair and the fourth ultrasonic transducer pair are arranged in a grid pattern along their respective paths.

5. A fluid flow field analyzer, characterized in that, The fluid flow field analyzer includes: a ring-shaped sensor array and an angle adjustment mechanism; The annular sensing array includes multiple ultrasonic transducers for mounting on the outside of the measuring pipe, the multiple ultrasonic transducers being distributed circumferentially. The angle adjustment mechanism is installed on the base of each ultrasonic transducer and is used to adjust the angle of the multiple ultrasonic transducers so that the multiple ultrasonic transducers are paired according to the pairing method corresponding to the scanning mode to form at least one ultrasonic transducer pair. In the abnormal flow scanning mode, the angle adjustment mechanism is used to adjust the multiple ultrasonic transducers to be adjusted according to the pairing method of the multiple ultrasonic transducers to be adjusted, to form target ultrasonic transducer pairs, wherein each ultrasonic transducer to be adjusted corresponds to at least two other ultrasonic transducers to be adjusted to form at least two target ultrasonic transducer pairs. The fluid flow field analyzer is used to perform the method as described in any one of claims 1-4.

6. A fluid flow field analysis system, characterized in that, The fluid flow field analysis system includes a flow field reconstruction simulation system and a fluid flow field analyzer as described in claim 5, wherein the flow field reconstruction simulation system and the fluid flow field analyzer are communicatively connected. The fluid flow field analyzer is used to determine the cross-sectional velocity trend based on the ultrasonic transducer pair and / or the target ultrasonic transducer pair, the cross-sectional velocity trend being determined based on the method as described in any one of claims 1-4; The flow field reconstruction simulation system is used to receive the cross-sectional flow velocity trend sent by the fluid flow field analyzer, and simulate the on-site environment and generate a three-dimensional flow field based on the cross-sectional flow velocity trend.

Images