Experimental and numerical investigation of heat transfer characteristics on the whole turbine vane surface
A comparative study on heat transfer characteristics of the whole turbine vane surface without films and another one with two rows of film holes was conducted through tests and numerical calculations.The results show that the heat transfer of the vane surface is influenced greatly by the cascade passage structure.Heat transfer is strong at the stagnation point of the vane leading edge and the mainstream severely accelerated position.The generations of channel vortices enhance the heat transfer at the vane end wall and compress the mainstream towards the middle of the vane.Film holes can enhance local convection heat transfer of the vane surface,but do not change the trend of the whole vane surface heat transfer.
NETL
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万方数据
