Design method and system for lateral pressure distribution on non-axisymmetric end wall

Abstract

The present disclosure relates to the field of flow control for turbine mechanical components of aviation gas turbine engines, and in particular to a method and system for designing the lateral pressure distribution of a non-axisymmetric endwall. The method comprises: extending the non-axisymmetric endwall profile to cover the area from the leading edge to the trailing edge of the blade in the axial direction, setting a lateral endwall profile control line at the start position of the flat endwall blade cascade angle separation; providing a lateral distribution of the static pressure coefficient variation on the endwall profile control line; calculating the target static pressure value of the non-axisymmetric endwall at the corresponding axial position based on the lateral distribution of the static pressure coefficient variation and the lateral distribution of the static pressure coefficient at the corresponding position of the flat endwall blade cascade; and performing a three-dimensional inverse problem design based on the target static pressure value of the non-axisymmetric endwall at the corresponding axial position to obtain the corresponding non-axisymmetric endwall profile. The disclosed method can be used as a general design method for non-axisymmetric endwalls to improve the flow in the end region of compressor blades.

Description

Technical Field

[0001] The present disclosure relates to the field of flow control of turbine machinery components of aviation gas turbine engines, and in particular to a method and system for designing lateral pressure distribution of a non-axisymmetric end wall. Background Art

[0002] Numerous studies have demonstrated that non-axisymmetric endwalls can effectively control flow in the impeller end region and improve aerodynamic performance. Existing research primarily uses forward design methods to optimize endwall shape under specific blade and flow conditions, and then summarizes the flow control mechanisms and geometric characteristics from the optimization results. However, the design principles for non-axisymmetric endwalls are difficult to generalize due to the following reasons:

[0003] Flow complexity: The flow in the compressor end area is highly sensitive to changes in pressure potential. The optimized end wall geometric characteristics for different research objects and flow conditions vary significantly, making it difficult to reuse design rules.

[0004] Load dependence: The flow field inside the compressor varies greatly with load and incoming flow conditions, and it is difficult to summarize universal design rules based solely on geometric characteristics.

[0005] Current forward design approaches optimize aerodynamic performance by influencing end zone flow through geometric changes, but this approach has limitations. A posteriori analysis reveals that flow control mechanisms and design rules must be reversed and summarized after optimization is complete, lacking forward-looking guidance. Quantitative challenges also exist: verifying and utilizing these mechanisms to form quantifiable design rules remains a pressing challenge. Summary of the Invention

[0006] To solve the above problems mentioned in the background technology, the present disclosure proposes a non-axisymmetric end wall lateral pressure distribution design method and system, aiming to provide a method for improving the universal design features of non-axisymmetric end walls for flow in the end area of ​​compressor blades.

[0007] According to one aspect of the present disclosure, a method for designing lateral pressure distribution of a non-axisymmetric end wall is provided, comprising the following steps:

[0008] S10, extending the non-axisymmetric end wall profile to cover the area from the leading edge to the trailing edge of the blade in the axial direction, and setting a transverse end wall profile control line at the start position of the flat end wall cascade angle separation;

[0009] S20, the lateral distribution of the static pressure coefficient change amount is given on the end wall profile control line, the static pressure coefficient change amount Expressed as:

[0010] ;in, and They represent the static pressure coefficients of the non-axisymmetric end wall and the flat end wall at the corresponding axial positions;

[0011] S30, calculating a target static pressure value of the non-axisymmetric end wall at a corresponding axial position based on a lateral distribution of the static pressure coefficient change and a lateral distribution of the static pressure coefficient of the flat end wall cascade at a corresponding position;

[0012] S40. Perform a three-dimensional inverse problem design based on the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain a corresponding non-axisymmetric end wall profile, wherein the three-dimensional inverse problem design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value at the corresponding axial position on the non-axisymmetric end wall and the target static pressure value, thereby causing the end wall profile to continuously deform and approach the target static pressure distribution during the three-dimensional flow field solution process.

[0013] Optionally, the static pressure coefficient Defined as:

[0014] ,

[0015] Where, is the static pressure, and are the total pressure and static pressure at the cascade inlet, respectively.

[0016] Optionally, in step S30, the target static pressure value required by the non-axisymmetric end wall at the corresponding position is expressed as:

[0017] ,

[0018] in, .

[0019] Optionally, on the transverse end wall profile control line, the static pressure coefficient variation of the non-axisymmetric end wall is It is equal to 0 in the dimensionless transverse coordinate ranges of 0.0-0.1 and 0.9-1.0, respectively, that is, the non-axisymmetric end wall is consistent with the flat end wall, wherein the dimensionless transverse coordinate is the ratio of the transverse distance from any point to the suction surface to the transverse width of the channel at the corresponding axial position.

[0020] Optionally, in the dimensionless transverse coordinate range of 0.1-0.2, the static pressure coefficient change Increases linearly from 0 to 0.06.

[0021] Optionally, in the dimensionless transverse coordinate range of 0.2-0.9, the static pressure coefficient change Decrease linearly from 0.06 to 0.

[0022] According to another aspect of the present disclosure, a non-axisymmetric end wall lateral pressure distribution design system is provided, comprising:

[0023] The end wall profile control line unit covers the range of the non-axisymmetric end wall profile from the leading edge to the trailing edge of the blade in the axial direction, and sets a transverse end wall profile control line at the separation starting position of the flat end wall cascade angle area;

[0024] a target static pressure value calculation unit, which calculates a target static pressure value of the non-axisymmetric end wall at a corresponding axial position based on a lateral distribution of a static pressure coefficient variation and a lateral distribution of a static pressure coefficient of a flat end wall cascade at a corresponding position;

[0025] A three-dimensional inverse problem design unit is configured to obtain a corresponding non-axisymmetric end wall profile by giving a target static pressure distribution for the three-dimensional inverse problem design based on a current static pressure value of the non-axisymmetric end wall at a corresponding axial position. The three-dimensional inverse problem design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value at the corresponding axial position on the non-axisymmetric end wall and the target static pressure value, thereby causing the end wall profile to continuously deform and approach the target static pressure distribution during the three-dimensional flow field solution process.

[0026] Optionally, the target static pressure value calculation unit further includes:

[0027] On the transverse end wall profile control line, the static pressure coefficient variation of the non-axisymmetric end wall are equal to 0 in the dimensionless transverse coordinate ranges of 0.0-0.1 and 0.9-1.0, respectively, that is, the non-axisymmetric end wall is consistent with the flat end wall, where the dimensionless transverse coordinate is the ratio of the transverse distance from any point to the suction surface to the transverse width of the channel at the corresponding axial position;

[0028] Optionally, in the dimensionless transverse coordinate range of 0.1-0.2, the static pressure coefficient change Increase linearly from 0 to 0.06;

[0029] Optionally, in the dimensionless transverse coordinate range of 0.2-0.9, the static pressure coefficient change Decrease linearly from 0.06 to 0.

[0030] According to another aspect of the present disclosure, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to: execute the above-mentioned non-axisymmetric end wall lateral pressure distribution design method.

[0031] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the above-mentioned non-axisymmetric end wall lateral pressure distribution design method is implemented.

[0032] Compared with the prior art, the beneficial effects of the present disclosure are:

[0033] 1) The present disclosure designs the end wall by setting a control line at a specific position (the starting position of the angular separation) and specifying a static pressure coefficient variation. This can reduce the total pressure loss of the airflow through the blade channel by suppressing the angular separation at the end of the compressor blade.

[0034] 2) The present invention discloses a universal design method for non-axisymmetric endwalls for compressor blade tip flow, which can improve the flow field in the compressor blade tip under different blade shapes and flow conditions.

[0035] 3) Compared with the numerical optimization method, the present invention does not require the establishment of a sample library, and the calculation amount is smaller. By setting the control line at a specific position and giving the static pressure coefficient change, the design process is simplified.

[0036] 4) This disclosure also explicitly provides the transverse distribution parameters of the static pressure coefficient variation. For example, in the dimensionless transverse coordinate range of 0.1-0.2, the static pressure coefficient variation Δcp increases linearly from 0 to 0.06, and in the range of 0.2-0.9, it decreases linearly from 0.06 to 0. This parameterized design makes the method easy to implement and repeat.

[0037] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0038] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings herein are incorporated into and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to explain the technical solutions of the present disclosure.

[0040] Figure 1 A flow chart of the design method for the lateral pressure distribution of the non-axisymmetric end wall is shown;

[0041] Figure 2 A schematic diagram of controlling the profile of a non-axisymmetric end wall in an example of the present disclosure is shown;

[0042] Figure 3 A lateral distribution diagram of the variation of the static pressure coefficient of the non-axisymmetric end wall in an embodiment of the present disclosure is shown;

[0043] Figure 4 Shows a contour line cloud diagram of the non-axisymmetric end wall profile in an embodiment of the present disclosure;

[0044] Figure 5 A graph showing the total pressure loss coefficient of the prototype blade cascade and the non-axisymmetric endwall blade cascade as a function of the angle of attack is shown;

[0045] Figure 6A block diagram of a non-axisymmetric end wall lateral pressure distribution design system in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0046] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0047] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0048] The term "and / or" herein simply describes an association relationship between associated objects, indicating that three relationships can exist. For example, "A and / or B" can represent the existence of three situations: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" herein refers to any combination of at least two of any one or more of a plurality of items. For example, "at least one of A, B, and C" can represent any one or more elements selected from the set consisting of A, B, and C.

[0049] In addition, numerous specific details are provided in the following detailed description to better illustrate the present disclosure. Those skilled in the art will appreciate that the present disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main points of the present disclosure.

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0051] The embodiment of the present disclosure proposes a method for designing the lateral pressure distribution of a non-axisymmetric end wall, such as Figure 1 As shown, the following steps are included:

[0052] S10, extending the non-axisymmetric end wall profile to cover the area from the leading edge to the trailing edge of the blade in the axial direction, and setting a transverse end wall profile control line at the start position of the flat end wall cascade angle separation;

[0053] S20, the lateral distribution of the static pressure coefficient change amount is given on the end wall profile control line, the static pressure coefficient change amount Expressed as:

[0054] ;in, and They represent the static pressure coefficients of the non-axisymmetric end wall and the flat end wall at the corresponding axial positions;

[0055] S30, calculating a target static pressure value of the non-axisymmetric end wall at a corresponding axial position based on a lateral distribution of the static pressure coefficient change and a lateral distribution of the static pressure coefficient at a corresponding position of the flat end wall cascade;

[0056] S40. Perform a three-dimensional inverse problem design based on the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain a corresponding non-axisymmetric end wall profile, wherein the three-dimensional inverse problem design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value at the corresponding axial position on the non-axisymmetric end wall and the target static pressure value, thereby causing the end wall profile to continuously deform and approach the target static pressure distribution during the three-dimensional flow field solution process.

[0057] Based on the above steps, the disclosed embodiments can reduce total pressure loss by suppressing angular separation at the compressor blade end region, thereby reducing total pressure loss of airflow through the blade passage. The disclosed embodiments can also improve the flow field at the compressor blade end region under different blade shapes and flow conditions. The following describes in detail the feasible implementation methods of the steps:

[0058] S10, extending the non-axisymmetric end wall profile to cover the area from the leading edge to the trailing edge of the blade in the axial direction, and setting a transverse end wall profile control line at the start position of the flat end wall cascade angle separation;

[0059] Among them, the compressor blades shown in Table 1 below can be used to perform non-axisymmetric end wall shaping, and the end wall profile control is as follows: Figure 2 As shown, the profile range covers the area from the leading edge to the trailing edge of the blade in the axial direction. A transverse end wall profile control line is set at the separation starting position of the flat end wall cascade angle area.

[0060] Table 1 Blade parameters

[0061]

[0062] S20, the lateral distribution of the static pressure coefficient change amount is given on the end wall profile control line, the static pressure coefficient change amount Expressed as:

[0063] ;in, and They represent the static pressure coefficients of the non-axisymmetric end wall and the flat end wall at the corresponding axial positions;

[0064] Among them, Figure 2 The transverse end wall profile control line shown is given Figure 3 The lateral distribution of the static pressure coefficient change is shown in the figure, where SS represents the suction surface and PS represents the pressure surface.

[0065] Among them, the static pressure coefficient Defined as:

[0066] ,

[0067] Where, is the static pressure, and are the total pressure and static pressure at the cascade inlet, respectively.

[0068] As an optional embodiment, on the transverse end wall profile control line, the static pressure coefficient variation of the non-axisymmetric end wall is It is equal to 0 in the dimensionless transverse coordinate ranges of 0.0-0.1 and 0.9-1.0, respectively, that is, the non-axisymmetric end wall is consistent with the flat end wall, wherein the dimensionless transverse coordinate is the ratio of the transverse distance from any point to the suction surface to the transverse width of the channel at the corresponding axial position.

[0069] As an optional embodiment, in the dimensionless horizontal coordinate range of 0.1-0.2, the static pressure coefficient change Increases linearly from 0 to 0.06.

[0070] As an optional embodiment, in the dimensionless horizontal coordinate range of 0.2-0.9, the static pressure coefficient change Decrease linearly from 0.06 to 0.

[0071] The above embodiments of the present disclosure clearly provide the lateral distribution parameters of the static pressure coefficient variation. This parameterized design makes the method easy to implement and repeat.

[0072] S30, such as Figure 3 Based on the lateral distribution of the static pressure coefficient variation and the lateral distribution of the static pressure coefficient at the corresponding position of the flat end wall cascade, the target static pressure value of the non-axisymmetric end wall at the corresponding axial position is calculated;

[0073] In step S30, the target static pressure value required by the non-axisymmetric end wall at the corresponding position is expressed as:

[0074] ,

[0075] in, .

[0076] S40. Perform a three-dimensional inverse design based on the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain a corresponding non-axisymmetric end wall profile. The three-dimensional inverse design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value and the target static pressure value at the corresponding axial position on the non-axisymmetric end wall, thereby continuously deforming the end wall profile to approximate the target static pressure distribution during the three-dimensional flow field solution. Compared to numerical optimization methods, the method in the disclosed embodiment does not require the establishment of a sample library, resulting in a smaller computational load. By setting control lines at specific locations and specifying the static pressure coefficient variation, the design process is simplified.

[0077] like Figure 5 Figure 2 shows the variation of the total pressure loss coefficient of the prototype cascade and the non-axisymmetric endwall cascade with angle of attack. The non-axisymmetric endwall reduces the total pressure loss of the compressor cascade at angles of attack ranging from -4 to +4 degrees.

[0078] As another aspect of the present disclosure, Figure 6 As shown, a non-axisymmetric end wall lateral pressure distribution design system 100 is also provided, comprising:

[0079] The end wall profile control line unit 1 covers the range of the non-axisymmetric end wall profile from the leading edge to the trailing edge of the blade in the axial direction, and sets a transverse end wall profile control line at the separation starting position of the flat end wall cascade angle area;

[0080] The target static pressure value calculation unit 2 calculates the target static pressure value of the non-axisymmetric end wall at the corresponding axial position based on the lateral distribution of the static pressure coefficient change and the lateral distribution of the static pressure coefficient of the flat end wall cascade at the corresponding position;

[0081] The three-dimensional inverse problem design unit 3 performs a three-dimensional inverse problem design based on the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain the corresponding non-axisymmetric end wall profile, wherein the three-dimensional inverse problem design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value at the corresponding axial position on the non-axisymmetric end wall and the target static pressure value, thereby causing the end wall profile to continuously deform and approach the target static pressure distribution during the three-dimensional flow field solution process.

[0082] As an optional implementation manner, the target static pressure value calculation unit further includes:

[0083] On the transverse end wall profile control line, the static pressure coefficient variation of the non-axisymmetric end wall are equal to 0 in the dimensionless transverse coordinate ranges of 0.0-0.1 and 0.9-1.0, respectively, that is, the non-axisymmetric end wall is consistent with the flat end wall, where the dimensionless transverse coordinate is the ratio of the transverse distance from any point to the suction surface to the transverse width of the channel at the corresponding axial position;

[0084] As an optional embodiment, in the dimensionless horizontal coordinate range of 0.1-0.2, the static pressure coefficient change Increase linearly from 0 to 0.06;

[0085] As an optional embodiment, in the dimensionless horizontal coordinate range of 0.2-0.9, the static pressure coefficient change Decrease linearly from 0.06 to 0.

[0086] In addition, in the absence of any contradiction, the above modules in the system of the embodiment of the present disclosure can implement any implementation of the above method.

[0087] The present disclosure also provides an electronic device comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to implement the aforementioned phase-shift coding method incorporating polarization shift codes. The electronic device can be provided as a terminal, server, or other device.

[0088] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implements the aforementioned phase-shift encoding method integrating polarization shift codes. The computer-readable storage medium may be a non-volatile computer-readable storage medium.

[0089] Those skilled in the art will understand that in the above-mentioned non-axisymmetric end wall lateral pressure distribution design method and system of the specific implementation method, the writing order of each step does not mean a strict execution order and constitutes any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0090] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and the part of the module, program segment or instruction contains one or more executable instructions for realizing the prescribed logical function. In some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the prescribed function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0091] While various embodiments of the present disclosure have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technical improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A design method for the lateral pressure distribution of a non-axisymmetric end wall, characterized in that: The steps include: S10, extending the non-axisymmetric end wall profile to cover the area from the leading edge to the trailing edge of the blade in the axial direction, and setting a transverse end wall profile control line at the start position of the flat end wall cascade angle separation; S20, the lateral distribution of the static pressure coefficient change amount is given on the end wall profile control line, the static pressure coefficient change amount Expressed as: ;in, and They represent the static pressure coefficients of the non-axisymmetric end wall and the flat end wall at the corresponding axial positions; S30, calculating a target static pressure value of the non-axisymmetric end wall at a corresponding axial position based on a lateral distribution of the static pressure coefficient change and a lateral distribution of the static pressure coefficient of the flat end wall cascade at a corresponding position; S40. Perform a three-dimensional inverse problem design based on the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain a corresponding non-axisymmetric end wall profile, wherein the three-dimensional inverse problem design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value at the corresponding axial position on the non-axisymmetric end wall and the target static pressure value, thereby causing the end wall profile to continuously deform and approach the target static pressure distribution during the three-dimensional flow field solution process.

2. The method according to claim 1, characterized in that The static pressure coefficient Defined as: ， Where, is the static pressure, and are the total pressure and static pressure at the cascade inlet, respectively.

3. The method according to claim 2, characterized in that In step S30, the target static pressure value required by the non-axisymmetric end wall at the corresponding position is expressed as: ， in, .

4. The method according to claim 1, wherein On the transverse end wall profile control line, the static pressure coefficient variation of the non-axisymmetric end wall It is equal to 0 in the dimensionless transverse coordinate ranges of 0.0-0.1 and 0.9-1.0, respectively, that is, the non-axisymmetric end wall is consistent with the flat end wall, wherein the dimensionless transverse coordinate is the ratio of the transverse distance from any point to the suction surface to the transverse width of the channel at the corresponding axial position.

5. The method according to claim 4, characterized in that In the dimensionless horizontal coordinate range of 0.1-0.2, the static pressure coefficient change Increases linearly from 0 to 0.

06.

6. The method according to claim 5, characterized in that In the dimensionless horizontal coordinate range of 0.2-0.9, the static pressure coefficient change Decrease linearly from 0.06 to 0.

7. Non-axisymmetric end wall lateral pressure distribution design system, characterized by: include: The end wall profile control line unit covers the range of the non-axisymmetric end wall profile from the leading edge to the trailing edge of the blade in the axial direction, and sets a transverse end wall profile control line at the starting position of the flat end wall cascade angle separation; the transverse distribution of the static pressure coefficient change is given on the end wall profile control line, and the static pressure coefficient change Expressed as: ;in, and They represent the static pressure coefficients of the non-axisymmetric end wall and the flat end wall at the corresponding axial positions; a target static pressure value calculation unit, which calculates a target static pressure value of the non-axisymmetric end wall at a corresponding axial position based on a lateral distribution of a static pressure coefficient variation and a lateral distribution of a static pressure coefficient of a flat end wall cascade at a corresponding position; A three-dimensional inverse problem design unit performs a three-dimensional inverse problem design based on the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain the corresponding non-axisymmetric end wall profile. The three-dimensional inverse problem design calculates the deformation of the non-axisymmetric end wall based on the difference between the current static pressure value and the target static pressure value at the corresponding axial position on the non-axisymmetric end wall, thereby causing the end wall profile to continuously deform and approach the target static pressure distribution during the three-dimensional flow field solution process.

8. The system according to claim 7, characterized in that The target static pressure value calculation unit also includes: On the transverse end wall profile control line, the static pressure coefficient variation of the non-axisymmetric end wall are equal to 0 in the dimensionless transverse coordinate ranges of 0.0-0.1 and 0.9-1.0, respectively, that is, the non-axisymmetric end wall is consistent with the flat end wall, where the dimensionless transverse coordinate is the ratio of the transverse distance from any point to the suction surface to the transverse width of the channel at the corresponding axial position; And, in the dimensionless transverse coordinate range of 0.1-0.2, the change in static pressure coefficient Increase linearly from 0 to 0.06; And, in the dimensionless transverse coordinate range of 0.2-0.9, the static pressure coefficient change Decrease linearly from 0.06 to 0.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for designing the non-axisymmetric end wall lateral pressure distribution according to any one of claims 1 to 6 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the non-axisymmetric end wall lateral pressure distribution design method according to any one of claims 1 to 6 is implemented.

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