Blade aerodynamic distribution data processing method suitable for finite element free mesh

An aerodynamic data and aerodynamic technology, applied in the field of data processing, can solve the problems of loading aerodynamic force, unable to use, unable to form a regular grid, etc., to achieve the effect of reliable results, less time consumption, convenient and quick acquisition and processing

Active Publication Date: 2017-05-24
AECC SICHUAN GAS TURBINE RES INST
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Problems solved by technology

[0006] However, in engineering design, the finite element grid of the blade is free in form and cannot form a regular grid, which makes it impossible to load the aerodynamic force by using the simplified processing method of equal distribution according to the total number of nodes

Method used

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  • Blade aerodynamic distribution data processing method suitable for finite element free mesh

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Embodiment Construction

[0021] A blade aerodynamic distribution data processing method suitable for finite element free mesh, including original parameter loading module, element type adaptive transformation module, boundary curve fitting module, element shape function calculation module, simulation mesh module, free Grid aerodynamic distribution module, aerodynamic calculation result formatting output module.

[0022] The original parameters are loaded into the module, and its function is to: calculate the S2 flow fields such as the section radius, airflow circulation or circumferential velocity, airflow axial velocity, temperature, gas density, static pressure, and rotational speed involved in the blade aerodynamic calculation. The data is automatically input and temporarily stored, and at the same time, free grid information such as blade surface unit information, blade surface node coordinates, and intake and exhaust edge node coordinates are automatically input and temporarily stored in a data li...

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Abstract

The invention relates to a data processing method, in particular to a blade aerodynamic distribution data processing method suitable for a finite element free mesh. When aircraft engine blade strength is designed, convenient and quick aerodynamic data acquisition and processing of the finite element free mesh of the blade can be realized, a result is reliable, and short time is used.

Description

technical field [0001] The invention relates to a data processing method, in particular to an aeroengine blade aerodynamic force distribution data processing method suitable for finite element free grids. Background technique [0002] The blade is the main functional part of the aero-engine, which is used to realize functions such as rectification, pressurization, and expansion. Due to the comprehensive effect of gas force, centrifugal force and temperature load, the strength, vibration and fatigue life of the blade are more prominent. Among them, the aerodynamic force The expression of has a decisive influence on the strength and fatigue life analysis results, so it needs to be expressed as accurately as possible. [0003] The aerodynamic force on the blade relies on the fluid mechanics method to establish the flow channel control body, and derives the mathematical expression according to the law of conservation of momentum and Newton's third law. [0004] Due to the diver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23
Inventor 王春健
Owner AECC SICHUAN GAS TURBINE RES INST
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