선형 터빈 익렬에서 열전달 수치해석 및 실험과 비교

Numerical analysis of heat transfer on the linear turbine endwall is conducted. Then, the results of Nusselt number are compared with those of equivalent heat transfer experiment. The generated mesh of numerical model has the averaged y+ is lower than 1 on the hub surface. From numerical investigation with two different turbulence model(SST and Reynolds stress model). The result gives resonable agreement with the experiment result from literature in vortex free region. The numerical results have higher Nu than experiment at stagnation point of leading edge due to conduction error. The passage vortex is described better by numerical analysis than experiment. In trailing edge, both boundary layer profile and Nu of numerical result have different trend from experimental one. Except high vortex region and trailing edge, numerical analysis has resonable agreement with the experimental result.