抄録
The purpose of this study is to develop the closed loop control system of the reattachment process in a backward facing step flow by a row of the vortex generator jets. A row of injection holes which covers full span is located upstream of the step. As a control parameter of the jets, the effects of the injection hole pitch and the jet velocity ratio on the reattachment process are investigated. A micro wall flow sensor was used for measurement of forward flow fraction. It is found that the reattachment line is almost parallel to the spanwise direction in the pitch from l0d to 20d, and that the reattachment length is decreased with an increase of the velocity ratio.
