Three-dimensional matching iteration method for aero-engine

An aero-engine and three-dimensional technology, applied in the field of three-dimensional simulation, can solve problems such as low calculation efficiency, inapplicability of calculation efficiency and accuracy, and limited iteration step size

Inactive Publication Date: 2022-02-15
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

However, the flow conditions of each component are different. For example, the main combustion chamber of the engine is generally a constant-pressure combustion, which can be regarded as an incompressible fluid; the compression and expansion of the gas by the fan/compressor and the high/low pressure turbine mainly involve compressible fluid. solution, so the same computational model and turbulence model are not applicable
[0006] (2) Low computational efficiency
For example, in the three-dimensional calculation of the whole machine, the flow of the main combust...

Method used

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  • Three-dimensional matching iteration method for aero-engine
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  • Three-dimensional matching iteration method for aero-engine

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[0037] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The invention belongs to the technical field of three-dimensional simulation, and particularly relates to a three-dimensional matching iteration method for an aero-engine which is characterized in that on the basis of existing three-dimensional simulation software of all parts of the engine, steady-state calculation results of all the parts are recycled, a balance equation deviation function is constructed and solved, and boundary conditions of all the parts are updated; the invention aims to solve the technical problems of low matching iterative calculation precision, low efficiency, poor convergence and the like in the technical scheme of three-dimensional steady-state simulation of the whole machine, and provides an effective new method which can truly and effectively reflect the three-dimensional flow field of the engine and is suitable for engineering application.

Description

technical field [0001] The present application belongs to the technical field of three-dimensional simulation, and in particular relates to an iterative method for three-dimensional matching of an aero-engine. Background technique [0002] In the design of aeroengines, simulation technology can effectively promote the advance research of engines, verify the design results, reduce design defects and design process repetition. The 3D simulation of the whole machine more accurately simulates the real working environment of each component of the engine. Compared with the zero-dimensional simulation of the whole machine, the three-dimensional simulation can obtain the internal flow field distribution of each component, the interface of the components is a surface field distribution instead of an average value, the distortion of the flow field information is small, and the boundary conditions are closer to the real flow conditions, thereby improving Machine simulation accuracy. ...

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Application Information

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IPC IPC(8): G06F30/17G06F30/28G06F113/08G06F119/14G06F119/08
CPCG06F30/17G06F30/28G06F2113/08G06F2119/14G06F2119/08
Inventor 赵文昆贾琳渊唐明智任文成张志舒陈仲光
Owner AECC SHENYANG ENGINE RES INST
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