STUDY OF A SHROUDED PROPELLER WITH DISTRIBUTED SUCTION ON THE INLET PROFILE

摘要

This paper demonstrates the application of suction to the control of the centrifugal separation which occurs in flows on curved walls. Results based on a simple technique for delineating the nature of this flow are given in the form of flow pictures. The flow is illustrated by allowing a dye, dissolved in a high vapor pressure solvent, to flow out of a plate affixed normal-to the curved wail. Separation is clearly shown.nThis, technique should prove valuable for analyzing the flow into ducted propellers or ducted fans, especially those yawed to the flow, such as ducted fan VTOL aircraft or fan in wing devices.