High-temperature Parts Of The Problem Of Cooling Heat - Flow - Solid Coupling Algorithm For Computing Research

The cooling technology of the turbine blades was very important to improve the efficiency of the aeroengine. But the outer wall of the turbine blades was washed by high temperature gas, the internal passage was cooled by cooling gas which was induced from the compressor. In order to get the temperature distribution of the turbine blades, the usually method was to simulate flow fields and temperature fields for solid area and liquid area respectively, then coupled on the interface of the solid and liquid. This was mainly because the control equations were different between liquid and solid. For the outer flow, solid structure and inner flow of the turbine blades were handled with different method, it was hard to iterate the three fields in time. Based on the development of the CFD computational technology in recent years, This paper studied above problems using heat -liquid -solid coupling method.The research established the mathematical model and built unitive control equations to outer flow, solid structure and inner flow of the turbine blades. The paper also discreted the equation and built the arithmetic to the heat-liquid-solid coupled model. The thesis calculated many examples for different boundary conditions and different solid structures on ANSYS7.0 soft platform.The calculation validated the above coupling method. In this paper. The conclusion of this paper has utility meaning in analysis on turbine blades cooling after some proper correcting of the geometry structure and boundary conditions.