COMPUTATIONAL INVESTIGATION OF TANGENTIAL SLOT BLOWING ON A GENERIC CHINED FOREBODY

The effect of tangential slot blowing on the flowfield about a generic chined forebody at high angles of attack is investigated numerically using solutions of the thin-layer, Reynolds-averaged, Navier-Stokes eq uations. The effects of jet mass flow ratios, angle of attack, and blo wing slot location in the axial and circumferential directions are stu died. The computed results compare well with available wind-tunnel exp erimental data. Computational results show that for a given mass now r ate, the yawing moments generated by slot blowing increase as the body angle of attack increases. It is observed that greater changes in the yawing moments are produced hy a slot located closest to the tip of t he nose. Also, computational solutions show that inboard blowing acros s the top surface is more effective at generating yawing moments than blowing outboard from the bottom surface.