Flow control in a shock layer on a body of revolution

Godunov's unsteady finite-difference method is used to evaluate the possibility of controlling the flow in a shock layer on a blunt body of revolution by attaching a ring in front of the body; the flow around the body is considered to be symmetric, uniform, and supersonic. The ring induces a system of shocks in the flow whose intersection with one another and with the bow shock arising in front of the body leads to a redistribution of pressure on the body. Depending on the nature of the interaction, either an increase or a decrease in the total load on the body can be achieved.