APPLICATION OF A CHARACTERISTIC BLADE-TO-BLADE SOLUTION TO FLOW IN A SUPERSONIC ROTOR WITH VARYING STREAM-FILAMENT THICKNESS

摘要

An analysis of the circumferential blade-to-blade flow properties in a supersonic impeller has been made using the method of characteristics on an arbitrary stream surface of revolution. The method takes into account variable stream-filament thickness and curvature along the flow surface. The results of an example considering stream-filament-thickness variation alone indicate an appreciable difference between the flow properties calculated with the plane-flow characteristic equations and those determined with the characteristics method demonstrated here. The effect of a stream-filament-thickness reduction from blade-passage inlet to exit was to reduce the relative velocity and the absolute value of the flow angle in the blade passage.