A quasi-three-dimensional flow virtual numerical test method for turbine engines

A turbine engine, numerical test technology, applied in image data processing, electrical digital data processing, special data processing applications, etc., can solve the problem of not providing quasi-three-dimensional flow aerodynamic modeling capabilities

Active Publication Date: 2019-03-01
BEIJING POWER MACHINERY INST
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Problems solved by technology

Existing software systems do not yet provide aerodynamic modeling capabilities for quasi-3D flows (such as on S2 flow surfaces), and the software source code must be modified to facilitate the establishment of quasi-3D aerodynamic models, which is beyond the reach of software users. did it

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  • A quasi-three-dimensional flow virtual numerical test method for turbine engines
  • A quasi-three-dimensional flow virtual numerical test method for turbine engines
  • A quasi-three-dimensional flow virtual numerical test method for turbine engines

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Embodiment Construction

[0042] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] The test object of the present invention is turbine engine (comprising turbofan and turbojet engine). figure 1 It is the whole structure of the turbofan engine (if the fan part, the outer duct part and the mixed exhaust part are removed, it will become a common turbojet engine), including the ND0 area, the ND1 area, the ND2 area and the ND3 area. Among them, the ND0 area (ABIE area) is the air inlet and fan area; the ND1 area (EFGH area) is the inner channel part, including high-pressure axial flow compressor, diagonal flow compressor, diffuser, combustion chamber, high-pressure turbine, low-pressure Turbine and tailpipe area; ND2 area (FIJG area) is the outer duct area; ND3 area (HJCD area) is the inner and out...

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Abstract

The invention relates to a quasi-three-dimensional flow virtual numerical test method of a turbine engine, belonging to the technical field of aero-engine test and verification. The invention providesa virtual numerical test method for quasi-three-dimensional flow of turbine engine based on aerodynamic simulation technology. By dividing the whole engine area reasonably, the quasi-three-dimensional flow of turbine engine is calculated by numerical iteration, and the steady or transient flow law is obtained. This method can be used as a virtual numerical simulation test method of engine test bench. Through numerical experiment, the distribution law of flow field in turbine engine can be obtained, and the aerodynamic performance of engine can be grasped.

Description

technical field [0001] The invention belongs to the technical field of aero-engine testing and verification, and in particular relates to a quasi-three-dimensional flow virtual numerical test method for a complete turbine engine. Background technique [0002] There are two main ways to obtain the flow law of the whole turbine engine: one is to measure the flow law of the whole engine through physical tests; the other is to use CFD simulation technology to obtain the flow law of the whole engine through computer virtual numerical experiments. The virtual numerical experiment using CFD simulation technology can save development costs and costs, shorten the development cycle, improve development efficiency, and avoid development risks. Therefore, since the 1980s, with the rise of CFD simulation technology, various commercial CFD software systems have emerged, such as FLUENT, CFX and NUMECA. These softwares mainly carry out the flow calculation of engine parts, component level ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
CPCG06T17/00G06F30/17G06F30/23Y02T90/00
Inventor 邵伏永王维明王大磊王春雪
Owner BEIJING POWER MACHINERY INST
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