2418 タービン段における三次元非定常空力干渉の数値シミュレーションと実験(S41-2 流体機械に関連した複雑内部流動の解析と計測(失速・はく離・翼列干渉),S41 流体機械に関連した複雑内部流動の解析と計測)  [in Japanese] 2418 Numerical and Experimental Investigations on Three-Dimensional Unsteady Aerodynamic Interaction in a Turbine Stage  [in Japanese]

Three-dimensional unsteady aerodynamic interaction in a turbine stage, which has a great effect on aerodynamic stage performance, has attracted attention from researchers. To elucidate this effect, we have investigated the flow field by using high-precision three-dimensional Navier-Stokes solver ; where blade-count ratio is almost the same as that of a real turbine. Axial spacing between rotor and stator is changed. We have compared experimental timeaveraged pneumatic pressure data measured by five-hole pitot probe with numerical results.