軸流壓縮機 回轉車內의 粘性流動 損矢을 고려한 3次元 流動計算에 關한 硏究 = A Study on the Three-Dimensional Flow Calculation with Viscous Loss for the Rotating Blades in Axi

다국어 초록 (Multilingual Abstract)

A Numerical Calculation has been performed for the analysis of three-dimensional flow fields in the rotating cascade. This analysis is one of the most important part of the aerodynamic design of rotating blades in axial-flow compressors. Three-dimensional flow fields can be obtained by the quasi-three-dimensional iterative calculations of flows both on blade-to-blade stream surfaces and hub-to-shround stream surfaces, the former is solved by the method of boundary streamline correction, the latter with the consideration of viscous flow losses. Conclusions are obtained as follows:
(1) The method of boundary streamline correction has been proved to be accurate one for the calculation of the high subsonic compressible blade-to-blade flows.
(2) For the prediction of performance at off-design points, the results of calculation of hub-to-shroud are effective if the calculation is performed with the proper consideration of losses due to viscous flows.