涡轮导向叶片变截面针肋通道内空气流动和传热过程数值模拟
NUMERICAL MODELING OF TURBULENT FLOW AND HEAT TRANSFER IN A PIN-FINNED CONVERGENT PASSAGE OF GAS TURBINE GUIDING VANE
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Abstract: A numerical model of cooling air flow and heat transfer in a pin-finned convergent passage of gas turbine guiding vane was set up,which employed a turbulent k-ε model,a 3D Body Fitted Coordinates (BFC),the SIMPLEST Algorithm and the whole field solving method of convection-conduction conjugate heat transfer problem,taking the interlinks among the flow field,pressure field,the temperature field,the property variation and the effects of compressibility and 3D heat conduction inside a guiding vane shell into consideration.The computation results are in a good agreement with experimental data.
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Key words:
- Blades /
- Cooling /
- Heat transfer /
- Numerical simulation
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