Mechanism of MVG for SBLI Control

In this chapter, a new mechanism of SBLI control by MVG is presented. Traditionally, people consider the reduction of shock-induced separation is caused by streamwise vortex which mixes the boundary layer flow and makes the velocity profile to be more able to withstand the flow separation. The new mechanism shows the spanwise vortex rings are critical which are quickly moving and fast rotating to destroy or undermine the shock and ease up the shock-induced flow separation significantly. Potentially, this study could contribute to some technology revolution in control of SBLI, flow separation and interference reduction.

Keywords: Flow control, Flow separation, Noise reduction, Pressure fluctuation, Shock, Shock and vortex interaction, Vortex ring, Vorticity.