An Experimental Investigation of the Influence of Electrostatic Fields on Flow Attachment

摘要

An experimental investigation was conducted to determine whether an electrostatic field could be used to affect the attachment of an air stream to a flat surface. Tests were run using a fluid-amplifier type device in which corona wind was fed through the control ports of the device. It was found that the fluid stream could be made to detach from one wall, flip over to the opposite wall, and attach to that wall. The air stream could then be flipped back to the original wall by activating the opposite corona wind control port. Pressure distribution and velocity profile data were taken which indicated that by suitable design symmetric flip-flop of the fluid stream in the device could be achieved. (Author)