40.4. Energy Deposition and Drag Reduction

Fig. 40.3. Amount of drag reduction obtainable through energy deposition depends upon location of deposition relative to the vehicle and amount of energy deposited. Therefore this method can be effectively used not only to reduce the wave drag but also to replace the control surfaces and to optimize the performance of scramjet inlet. Substantial amount of contributions have been reported in the open literature about drag reduction using concentrated energy deposition.

 

Fig. 40.3. Schematic of expected flowfield of energy addition drag reduction technique