柯恩达表面形状对燃机涡轮环量控制叶型性能影响

his paper presents the results of a two-dimensional numerical research using commercial software ANSYS CFX on the performance and flow field of circulation control turbine blades with circular and elliptical Coanda surfaces. The results indicate that the jet detachment is largely due to the low magnitude of jet velocity and the great curvature of Coanda surface. A large turning of the mainstream along with a high energy loss can be obtained by a high speed jet flowing around Coanda surface with a large curvature.