Hot air flow analysis device

Abstract

An objective of the present invention is to provide technology for efficiently and highly accurately performing CFD analysis of a hot air flow of an air conditioner. A hot air flow analysis device (101) comprises: a calculation condition creation unit (12) that, on the basis of input information, generates a calculation condition including a boundary condition used in CFD analysis; a correction information storage unit (14) in which device information and correction information on a boundary condition used in CFD analysis are stored for a plurality of second air conditioning devices; a similar model extraction unit (15) that, when a first air conditioning device is not included among the plurality of second air conditioning devices, extracts a second air conditioning device, having device information similar to the device information of the first air conditioning device, as a similar model from among the plurality of second air conditioning devices; a correction unit (16) that, when the first air conditioning device is not included among the plurality of second air conditioning devices, corrects the calculation condition using the correction information corresponding to the similar model; and a CFD analysis unit (17) that performs CFD analysis on the basis of the corrected calculation condition.

Description

Thermal air current analysis device

[0001] The present disclosure relates to analysis of thermal airflow caused by air conditioning equipment.

[0002] To select or control air conditioning equipment that creates a comfortable indoor space, computational fluid dynamics (CFD) analysis of the thermal airflow in the indoor space generated by the air conditioning equipment is sometimes performed. In order to obtain highly accurate analysis results with CFD analysis, it is necessary to create appropriate calculation conditions, but creating the calculation conditions requires know-how or trial and error.

[0003] Because catalog values ​​and actual measurement values ​​for the airflow volume or direction of air conditioners do not necessarily match, errors will occur in the analysis results even if catalog values ​​are used as input for CFD analysis. For this reason, it is necessary to correct the calculation conditions that are input for CFD analysis. In this regard, for example, Patent Document 1 describes a method for correcting the calculation conditions by comparing the CFD analysis results with actual measurement data measured by a sensor.

[0004] Patent No. 724494

[0005] According to the method described in Patent Document 1, when there are many models of air conditioning equipment to be analyzed, there is a problem in that it is time-consuming to prepare actual measurement data for each model and perform corrections.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a technology for efficiently and accurately performing CFD analysis of thermal airflow in air conditioning equipment.

[0007] The thermal airflow analysis device disclosed herein is a thermal airflow analysis device that performs CFD analysis of a thermal airflow in a target indoor space in which a first air conditioning device is installed, and includes an information acquisition unit that acquires input information including equipment information and operation information of the first air conditioning device and room information representing the target indoor space, a calculation condition creation unit that generates calculation conditions including boundary conditions used in the CFD analysis based on the input information, a correction information storage unit that stores equipment information and correction information for the boundary conditions used in the CFD analysis for a plurality of second air conditioning devices, and a correction information storage unit that stores correction information for the first air conditioning device when the first air conditioning device is installed in a plurality of second air conditioning devices. a similar model extraction unit that extracts, from the plurality of second air conditioning devices, a second air conditioning device having device information similar to the device information of the first air conditioning device as a similar model if the first air conditioning device is not included in the plurality of second air conditioning devices; a correction unit that corrects calculation conditions using correction information corresponding to the similar model if the first air conditioning device is not included in the plurality of second air conditioning devices, and corrects calculation conditions using the correction information corresponding to the first air conditioning device if the first air conditioning device is included in the plurality of second air conditioning devices; and a CFD analysis unit that performs CFD analysis based on the corrected calculation conditions.

[0008] According to the thermal airflow analysis device of the present disclosure, even if the correction information for the first air conditioning device is not stored in the correction information storage unit, the calculation conditions for the first air conditioning device can be corrected using the correction information for a similar model of the first air conditioning device. Therefore, it is possible to perform CFD analysis of the thermal airflow of the air conditioning device efficiently and with high accuracy. Objects, features, aspects, and advantages of the present disclosure will become more apparent from the following detailed description and the accompanying drawings.

[0009] 1 is a configuration diagram of a thermal air current analysis device according to embodiment 1. FIG. 2 is a diagram showing room information. FIG. 3 is a diagram showing equipment information. FIG. 4 is a diagram showing operation information. FIG. 5 is a diagram showing boundary conditions as calculation conditions. FIG. 6 is a diagram showing analysis shape data as calculation conditions. FIG. 7 is a diagram showing model classification information. FIG. 8 is a diagram showing correction information. FIG. 9 is a diagram showing analysis results. FIG. 10 is a diagram showing a display example of analysis results. FIG. 11 is a flowchart showing the operation of a thermal air current analysis device according to embodiment 1. FIG. 12 is a flowchart showing a calculation condition creation process for a thermal air current analysis device according to embodiment 1. FIG. 13 is a configuration diagram of a thermal air current analysis device according to embodiment 2. FIG. 14 is a flowchart showing the operation of a thermal air current analysis device according to embodiment 2. FIG. 15 is a diagram showing the hardware configuration of a thermal air current analysis device. FIG. 16 is a diagram showing the hardware configuration of a thermal air current analysis device.

[0010] <A. First Embodiment> <A-1. Configuration> FIG. 1 is a diagram showing the configuration of a thermal airflow analysis device 101 according to the first embodiment. The thermal airflow analysis device 101 performs CFD analysis of thermal airflow in a room caused by an air conditioning device. The air conditioning device installed in the room where the thermal airflow analysis device 101 performs CFD analysis of the thermal airflow is also referred to as the first air conditioning device. The thermal airflow analysis device 101 includes a client PC 20, a first server 21, and a second server 22. The client PC 20 and the first server 21, which is located on the cloud, are connected via the Internet. The first server 21 and the second server 22 are connected via a network within the cloud. However, the configuration of the thermal airflow analysis device 101 is not limited to this. For example, the first server 21 and the second server 22 may be implemented on an on-premise computer or may be implemented on the same computer.

[0011] The client PC 20 is a general-purpose office PC or tablet PC, has a web browser function, and can browse web applications of the first server 21. The client PC 20 includes an information input unit 11 and a display unit 19.

[0012] The information input unit 11 accepts information input from a user. Room information, equipment information, and operation information are input to the information input unit 11. The room information is information about the room space that is the target for CFD analysis. The equipment information is information about the air conditioning equipment (first air conditioning equipment) installed in the room space that generates the thermal air current for which CFD analysis is performed. The operation information is information about the operation of the air conditioning equipment. In this way, the information input unit 11 functions as an information acquisition unit that acquires input information including the equipment information and operation information of the first air conditioning equipment, as well as room information.

[0013] The display unit 19 acquires the CFD analysis results from the first server 21 and displays them.

[0014] The first server 21 has a web server function and can execute a web application. This web application can accept information input such as room information, equipment information, and operation information from the client PC 20, and display the analysis results of the CFD analysis. The first server 21 includes a calculation condition creation unit 12, a correction information storage unit 14, a similar model extraction unit 15, a correction unit 16, and an analysis result acquisition unit 18.

[0015] The calculation condition creating unit 12 acquires room information, equipment information, and operation information from the information input unit 11 of the client PC 20, and creates calculation conditions required for CFD analysis based on this information.

[0016] The correction information storage unit 14 stores equipment information and correction information for boundary conditions (calculation conditions) required for CFD analysis for several predetermined air conditioning equipment models. Here, the air conditioning equipment whose equipment information and correction information are stored in the correction information storage unit 14 is referred to as the second air conditioning equipment. The equipment information of the second air conditioning equipment stored in the correction information storage unit 14 includes model classification information, which is information other than the shape unique to each model, and model shape information that represents the shape of each model. The model classification information includes information such as the manufacturer, type, and release date.

[0017] The similar model extraction unit 15 compares the equipment information of the first air conditioning equipment obtained from the information input unit 11 of the client PC 20 with the equipment information of the second air conditioning equipment stored in the correction information storage unit 14, and extracts the second air conditioning equipment whose equipment information is similar to that of the first air conditioning equipment as a similar model of the first air conditioning equipment.

[0018] If the correction information for the first air conditioning equipment is stored in the correction information storage unit 14, i.e., if the first air conditioning equipment is included in a plurality of second air conditioning equipment, the correction unit 16 acquires the correction information for the first air conditioning equipment from the correction information storage unit 14 and corrects the calculation conditions created by the calculation condition creation unit 12 based on the correction information for the first air conditioning equipment. Furthermore, if the correction information for the first air conditioning equipment is not stored in the correction information storage unit 14, i.e., if the first air conditioning equipment is not included in a plurality of second air conditioning equipment, the correction unit 16 acquires the correction information for the similar model extracted by the similar model extraction unit 15 from the correction information storage unit 14 and corrects the calculation conditions created by the calculation condition creation unit 12 based on the correction information for the similar model.

[0019] The calculation condition creating unit 12 transmits the calculation conditions corrected by the correcting unit 16 to the CFD analyzing unit 17 of the second server 22 and requests a CFD analysis.

[0020] The analysis result acquisition unit 18 acquires the CFD analysis results from the second server 22 and transmits them to the client PC 20 .

[0021] The second server 22 is a computer that performs the CFD analysis, and includes a CFD analysis unit 17 that performs the CFD analysis. The CFD analysis unit 17 acquires the calculation conditions from the calculation condition creation unit 12, performs the CFD analysis based on the calculation conditions, and transmits the analysis results to the first server 21.

[0022] 2 shows an example of room information transmitted from the client PC 20 to the first server 21. The room information is information representing the shape of the room space in which the CFD analysis of thermal airflow is performed. In the example of FIG. 2, the room information includes information on the three-dimensional shapes of the ceiling, floor, wall W1, wall W2, wall W3, wall W4, and windows.

[0023] 3 shows an example of device information sent from the client PC 20 to the first server 21. The device information is information about air conditioning devices installed in the room where the CFD analysis of thermal airflow is performed. In the example of FIG. 3, the device information includes information about the indoor unit A1, the air supply port B1, the air return port C1, and the fan D1.

[0024] The device information of the indoor unit A1 includes information on the model name, location, installation wall, and the three-dimensional shape of the housing. The model name of the indoor unit A1 is IC-0001. The installation wall of the indoor unit A1 is, for example, the ceiling.

[0025] The equipment information for air intake B1 includes the ventilation model name, location, installation wall surface, system number, and information on the three-dimensional shape of the air intake. The ventilation model name for air intake B1 is assumed to be LC-0002. The installation wall surface for air intake B1 is, for example, wall W1. The system number for air intake B1 is assumed to be S1.

[0026] The equipment information for the return air vent C1 includes the ventilation model name, location, installation wall surface, system number, and information on the three-dimensional shape of the air vent. The ventilation model name for the return air vent C1 is assumed to be LC-0002. The installation wall surface for the return air vent C1 is, for example, wall W3. The system number for the return air vent C1 is assumed to be S1.

[0027] The device information of the fan D1 includes information on the model name, location, installation wall, and three-dimensional shape. The ventilation model name of the fan D1 is FAN-0003. The installation wall of the fan D1 is, for example, the ceiling.

[0028] The locations of the indoor unit A1, the air supply port B1, and the air return port C1 are represented by, for example, three-dimensional coordinates of a reference position. The location of the fan D1 is represented by, for example, three-dimensional coordinates of a reference position and a direction.

[0029] 4 shows an example of operation information transmitted from the client PC 20 to the first server 21. The operation information is information related to the operation of air conditioning equipment installed in the room where the CFD analysis of thermal airflow is performed. The operation information in FIG. 4 includes operation information for the indoor unit A1, the ventilation V1, and the fan D1.

[0030] The operation information of the indoor unit A1 includes the set values ​​of temperature, air volume, and air direction. The set values ​​of air direction include the set values ​​of horizontal air direction and vertical air direction. The operation information of the ventilation S1 and the fan D1 includes the set values ​​of air volume.

[0031] 5 and 6 show examples of calculation conditions created by the calculation condition creating unit 12 of the first server 21. These calculation conditions are before being corrected by the correcting unit 16.

[0032] 5 include boundary conditions for the air outlets E1, E2, E3, and E4 of the indoor unit A1 and the air supply port B1. The boundary conditions for the air outlets E1, E2, E3, and E4 of the indoor unit A1 include conditions for air direction, air volume, and temperature. The boundary condition for the air supply port B1 includes a condition for air volume.

[0033] The calculation conditions shown in FIG. 6 are analytical shape data and include three-dimensional shape conditions for the ceiling, floor, walls W1, W2, W3, W4, windows, indoor unit A1, air supply port B1, return air port C1, and fan D1.

[0034] FIG. 7 shows an example of model classification information stored in the model classification information storage unit 13. The model classification information storage unit 13 stores model classification information for several air conditioners in advance. The model classification information shown in FIG. 7 includes model classification information for indoor unit model IC-0001 and ventilation model LC-0001. The model classification information includes, for example, the manufacturer, type, release date, and information on the same series. The model classification information for the indoor unit may include a rated cooling capacity (e.g., 7.1 kW) and a rated heating capacity (e.g., 8.0 kW). The model classification information for ventilation includes a rated air volume (e.g., 500 m ３ / h). According to the model classification information in FIG. 7, indoor unit model IC-0001 is manufactured by Company A, is a "ceiling cassette type four-way air outlet" model, was released on May 20, 2023, and models in the same series are IC-0002 and IC-0003. Here, models in the same series correspond to similar models. Therefore, the similar model extraction unit 15 acquires IC-0002 and IC-0003 as models similar to indoor unit model IC-0001.

[0035] 7, ventilation model LC-0001 is manufactured by Company B, is a "ceiling-mounted type," was released on April 20, 2020, and is in the same series as models LC-0002 and LC-0003. Therefore, the similar model extraction unit 15 acquires LC-0001 and LC-0003 as models similar to ventilation model LC-0002.

[0036] Fig. 8 shows an example of the correction information stored in the correction information storage unit 14. The correction information shown in Fig. 8 includes correction information for the indoor unit IC-0001 and correction information for the ventilation unit LC-0001.

[0037] According to Figure 8, for indoor unit IC-0001, the air volume correction coefficient is 0.9 and the air direction correction value is +1°. Therefore, the correction unit 16 can correct the calculation conditions for indoor unit IC-0001 using this correction information. Also, according to Figure 8, for ventilation model LC-0001, the air volume correction coefficient is 0.85. Therefore, the correction unit 16 can correct the calculation conditions for ventilation model LC-0002 using the correction information for similar model LC-0001.

[0038] 9 shows an example of the results of a CFD analysis, which shows the velocity (x direction, y direction, and z direction) of the thermal airflow and the temperature in each three-dimensional coordinate system.

[0039] 10 shows an example of the display of the CFD analysis results on the display unit 19 of the client PC 20. In this example, the strength of the wind speed at each point on the xy plane is displayed using color. Note that the calculation conditions of the CFD analysis and the correction contents may also be displayed so that they can be confirmed.

[0040] <A-2. Operation> Fig. 11 is a flowchart showing the operation of the thermal air current analysis device 101 according to embodiment 1. The operation of the thermal air current analysis device 101 will be described below in accordance with the flow of Fig. 11 .

[0041] First, in step S101, the information input unit 11 of the client PC 20 accepts input of room information, model information, and operation information from the user.

[0042] Next, in step S102, the client PC 20 transmits the room information, the model information, and the operation information to the first server 21.

[0043] Thereafter, in step S103, the first server 21 creates calculation conditions based on the room information, model information, and operation information acquired in step S102.

[0044] Next, in step S104 , the calculation condition creating unit 12 of the first server 21 transmits the calculation conditions to the second server 22 .

[0045] Thereafter, in step S105, the CFD analysis unit 17 of the second server 22 performs a CFD analysis using the calculation conditions acquired in step S104.

[0046] Next, in step S106 , the CFD analysis unit 17 transmits the CFD analysis results to the first server 21 .

[0047] Then, in step S107, the analysis result acquisition unit 18 of the first server 21 transmits the CFD analysis results acquired from the second server 22 in step S106 to the client PC 20, and the CFD analysis results are displayed on the display unit 19 of the client PC 20, making them available for viewing by the user.

[0048] Fig. 12 is a flowchart showing the calculation condition creation process in step S103 of Fig. 11. The calculation condition creation process will be described below along the flow of Fig. 12.

[0049] First, in step S1031 , the calculation condition creating unit 12 creates calculation conditions based on the room information, device information, and operation information acquired from the client PC 20 .

[0050] Next, in step S1032, the similar model extraction unit 15 acquires information about the model of the air conditioning equipment to be analyzed from the equipment information acquired from the client PC 20, and extracts models similar to the air conditioning equipment to be analyzed as similar models by referring to the model classification information stored in the model classification information storage unit 13.

[0051] Thereafter, in step S1033, the correction unit 16 acquires information on similar models from the similar model extraction unit 15, and acquires correction information for the similar models from the correction information storage unit 14. Then, the correction unit 16 corrects the calculation conditions created by the calculation condition creation unit 12 in step S1031, using the correction information for the similar models.

[0052] <A-3. Modifications> In the above description, the model classification information in FIG. 7 includes information about the same series, and the similar model extraction unit 15 extracts models in the same series as similar models. However, the similar model extraction unit 15 may extract similar models from the model classification information according to other rules, such as the following. For example, the similar model extraction unit 15 may determine as a similar model a model that has the same manufacturer and type name and whose release date is closest to that of the target model. Alternatively, the similar model extraction unit 15 may determine as a similar model a model that has the same manufacturer and type name and belongs to the same series. Alternatively, the similar model extraction unit 15 may determine as a similar model a model that has the same manufacturer name and a similar type name. Alternatively, the similar model extraction unit 15 may determine as a similar model a model that has the same manufacturer and type name and has the same rated cooling capacity and rated heating capacity. Alternatively, the similar model extraction unit 15 may determine as a similar model a model that has the same manufacturer and type name and has the same rated airflow.

[0053] When model shape information is stored in the model classification information storage unit 13, the similar model extraction unit 15 may extract similar models using the device shape information. Specifically, the similar model extraction unit 15 may extract models whose housing shape data matches or whose shape data difference is equal to or less than a threshold as similar models. Alternatively, the similar model extraction unit 15 may simplify the shape data of the model to be corrected and the shape data of a comparison model, and then compare the shapes, and extract models whose shape data matches or whose shape data difference is equal to or less than a threshold as similar models.

[0054] The similar model extraction unit 15 may also extract similar models based on both the model shape information and the model classification information. For example, the similar model extraction unit 15 may determine, among models with similar shapes, a model with the closest release date as a similar model.

[0055] The similar model extraction unit 15 may also extract similar models by machine learning. Specifically, the similar model extraction unit 15 may construct a classification model by learning feature amounts extracted from the equipment classification information and model shape information of the air conditioning equipment and the classification results, and extract similar models using the constructed classification model.

[0056] <A-4. Effects> The thermal airflow analysis device 101 according to the first embodiment performs CFD analysis of the thermal airflow in the target indoor space in which the first air conditioning device is installed. The thermal airflow analysis device 101 includes an information acquisition unit that acquires input information including equipment information and operation information of a first air conditioning device, and room information that represents a target indoor space; a calculation condition creation unit 12 that generates calculation conditions including boundary conditions used in the CFD analysis based on the input information; a correction information storage unit 14 that stores equipment information and correction information for the boundary conditions used in the CFD analysis for a plurality of second air conditioning devices; a similar model extraction unit 15 that, if the first air conditioning device is not included in the plurality of second air conditioning devices, extracts a second air conditioning device having equipment information similar to the equipment information of the first air conditioning device from the plurality of second air conditioning devices as a similar model; a correction unit 16 that corrects the calculation conditions using the correction information corresponding to the similar model if the first air conditioning device is not included in the plurality of second air conditioning devices, and corrects the calculation conditions using the correction information corresponding to the first air conditioning device if the first air conditioning device is included in the plurality of second air conditioning devices; and a CFD analysis unit 17 that performs CFD analysis based on the corrected calculation conditions. With the above configuration, even for a model for which correction information is not stored in the correction information storage unit 14, it is possible to perform CFD analysis with high accuracy by correcting the calculation conditions using the correction information of a similar model. As a result, the thermal air current analysis device 101 can perform efficient CFD analysis for many model types.

[0057] <B. Embodiment 2> <B-1. Configuration> Fig. 13 is a diagram showing the configuration of a thermal air current analysis device 102 according to embodiment 2. The thermal air current analysis device 102 is made up of a device control terminal 30, a first server 21, and a second server 22. The device control terminal 30 is a terminal that controls air conditioning equipment (first air conditioning equipment) provided in a room space where the thermal air current analysis device 102 performs CFD analysis of the thermal air current.

[0058] The device control terminal 30 includes an information storage unit 31 and a display unit 19. The information storage unit 31 stores room information, which is information about the room space in which the air conditioning equipment controlled by the device control terminal 30 is installed, and device information and operation information for the air conditioning equipment controlled by the device control terminal 30. In other words, the information storage unit 31 functions as an information acquisition unit that acquires the device information and operation information for the first air conditioning equipment, as well as room information. The other configurations are the same as those in the first embodiment.

[0059] <B-2. Operation> Fig. 14 is a flowchart showing the operation of the thermal air current analysis device 102 according to embodiment 2. The operation of the thermal air current analysis device 102 will be described below in accordance with the flow of Fig. 14 .

[0060] First, in step S201, the device control terminal 30 transmits the room information, device information, and operation information stored in the information storage unit 31 to the first server 21.

[0061] Next, in step S202, the first server 21 creates calculation conditions based on the room information, model information, and operation information acquired in step S202.

[0062] Next, in step S203, the calculation condition creating unit 12 of the first server 21 transmits the calculation conditions to the second server 22.

[0063] Thereafter, in step S204, the CFD analysis unit 17 of the second server 22 performs a CFD analysis using the calculation conditions acquired in step S203.

[0064] Next, in step S205, the CFD analysis unit 17 transmits the CFD analysis result to the first server 21.

[0065] Then, in step S206, the analysis result acquisition unit 18 of the first server 21 transmits the CFD analysis results acquired from the second server 22 in step S206 to the device control terminal 30, and the CFD analysis results are displayed on the display unit 19 of the device control terminal 30, making them available for viewing by the user.

[0066] <B-3. Effects> The thermal airflow analysis device 102 according to the second embodiment performs CFD analysis of the thermal airflow in the target indoor space in which the first air conditioning device is installed. The thermal airflow analysis device 102 includes an information storage unit 31 which is an information acquisition unit that acquires input information including equipment information and operation information of the first air conditioning device, and room information that represents the target indoor space; a calculation condition creation unit 12 that generates calculation conditions including boundary conditions to be used in the CFD analysis based on the input information; a correction information storage unit 14 that stores equipment information and correction information of the boundary conditions to be used in the CFD analysis for a plurality of second air conditioning devices; a similar model extraction unit 15 that, if the first air conditioning device is not included in the plurality of second air conditioning devices, extracts a second air conditioning device having equipment information similar to the equipment information of the first air conditioning device from the plurality of second air conditioning devices as a similar model; a correction unit 16 that corrects the calculation conditions using the correction information corresponding to the similar model if the first air conditioning device is not included in the plurality of second air conditioning devices, and corrects the calculation conditions using the correction information corresponding to the first air conditioning device if the first air conditioning device is included in the plurality of second air conditioning devices; and a CFD analysis unit 17 that performs CFD analysis based on the corrected calculation conditions. With the above configuration, even for a model for which correction information is not stored in the correction information storage unit 14, it is possible to perform accurate CFD analysis by correcting the calculation conditions using correction information from a similar model. As a result, the thermal air current analysis device 102 can perform efficient CFD analysis for many model types.

[0067] <C. Hardware Configuration> The information input unit 11, calculation condition creation unit 12, correction information storage unit 14, similar model extraction unit 15, correction unit 16, CFD analysis unit 17, analysis result acquisition unit 18, and display unit 19 in the above-described thermal airflow analysis devices 101, 102 are realized by a processing circuit 81 shown in FIG. 15 . That is, the processing circuit 81 includes the information input unit 11, calculation condition creation unit 12, correction information storage unit 14, similar model extraction unit 15, correction unit 16, CFD analysis unit 17, analysis result acquisition unit 18, display unit 19, and information storage unit 31 (hereinafter referred to as the "information input unit 11, etc."). The processing circuit 81 may be implemented by dedicated hardware or by a processor that executes a program stored in memory. The processor may be, for example, a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, DSP (Digital Signal Processor), etc.

[0068] When the processing circuitry 81 is dedicated hardware, the processing circuitry 81 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. The functions of each unit, such as the information input unit 11, may be realized by multiple processing circuits 81, or the functions of each unit may be realized together by a single processing circuit.

[0069] When the processing circuitry 81 is a processor, the functions of the information input unit 11 and the like are realized by a combination of software, etc. (software, firmware, or software and firmware). The software, etc. is written as a program and stored in memory. As shown in FIG. 16 , the processor 82 applied to the processing circuitry 81 realizes the functions of each unit by reading and executing a program stored in the memory 83. That is, the thermal airflow analysis devices 101 and 102 include a memory 83 for storing a program that, when executed by the processing circuitry 81, results in the processing of the information input unit 11 and the like. In other words, this program can be said to cause a computer to execute the procedure or method of the information input unit 11 and the like. Here, the memory 83 may be, for example, a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), or an EEPROM (Electrically Erasable Programmable Read Only Memory), a HDD (Hard Disk Drive), a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disk) and its drive device, or any storage medium that will be used in the future.

[0070] The above describes a configuration in which each function of the information input unit 11 and the like is realized either by hardware or software, etc. However, the present invention is not limited to this, and a configuration in which part of the information input unit 11 and the like is realized by dedicated hardware and another part is realized by software, etc. For example, the function of the CFD analysis unit 17 can be realized by a processing circuit as dedicated hardware, and the other functions can be realized by the processing circuit 81 as the processor 82 reading and executing programs stored in the memory 83.

[0071] As described above, the processing circuit can realize each of the above-described functions by hardware, software, or a combination of these.

[0072] It should be noted that the embodiments can be freely combined, and each embodiment can be modified or omitted as appropriate. The above description is an example in all respects. It is understood that countless variations not illustrated can be envisioned.

[0073] 11 Information input unit, 12 Calculation condition creation unit, 13 Model classification information storage unit, 14 Correction information storage unit, 15 Similar model extraction unit, 16 Correction unit, 17 CFD analysis unit, 18 Analysis result acquisition unit, 19 Display unit, 20 Client PC, 21 First server, 22 Second server, 30 Device control terminal, 31 Information storage unit, 81 Processing circuit, 82 Processor, 83 Memory, 101, 102 Thermal air current analysis device.

Claims

1. A thermal airflow analysis device that performs CFD analysis of thermal airflow in a target indoor space in which a first air conditioning device is installed, comprising: an information acquisition unit that acquires input information including equipment information and operation information of the first air conditioning device and room information that describes the target indoor space; a calculation condition creation unit that generates calculation conditions including boundary conditions used in the CFD analysis based on the input information; a correction information storage unit that stores equipment information and correction information for the boundary conditions used in the CFD analysis for a plurality of second air conditioning devices; a similar model extraction unit that, if the first air conditioning device is not included in the plurality of second air conditioning devices, extracts a second air conditioning device from the plurality of second air conditioning devices that has equipment information similar to the equipment information of the first air conditioning device as a similar model; and a correction unit that, if the first air conditioning device is not included in the plurality of second air conditioning devices, corrects the calculation conditions using the correction information corresponding to the similar model, and, if the first air conditioning device is included in the plurality of second air conditioning devices, corrects the calculation conditions using the correction information corresponding to the first air conditioning device. a CFD analysis unit that performs the CFD analysis based on the corrected calculation conditions.

2. The thermal airflow analysis device of claim 1, wherein the equipment information of the first air conditioning equipment and the second air conditioning equipment includes classification information, which is information other than shape that can uniquely identify the models of the first air conditioning equipment and the second air conditioning equipment, and the classification information includes at least one of information about the manufacturer, type, release date, and series.

3. The thermal airflow analysis device according to claim 1 or claim 2, wherein the equipment information of the first air conditioning equipment and the second air conditioning equipment includes shape information of the first air conditioning equipment and the second air conditioning equipment.

4. The thermal airflow analysis device according to any one of claims 1 to 3, wherein the similar model extraction unit extracts the similar models by machine learning.

5. The thermal airflow analysis device according to any one of claims 1 to 4, further comprising a display unit that displays the results of the CFD analysis.

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