An experimental study of interactive behaviors between vectoring jet and main flows

A low speed experimental study of interaction flows between vectoring jet and main flow around a typical advanced fighter configuration with double delta wing and elliptic body is presented. The experimental results show that the vectoring jet effects on the interaction flow are mainly divided into three types which are dependent of main flow patterns. In the attached mainflows the jet effects are limited in the flow area near the nozzle exit, in the stable leading edge vortices flows the jet effects are weak on the vortices flows. And in the burst vortices flows the jet effects can recover them into stable state to some extent. In order to get a favorite vectoring jet effects it is important that wing configuration and twin exhaust nozzle arrangement should be carefully close coupled.