Shock Tunnel Experiments and CFD Simulation of Lateral Jet Interaction in Hypersonic Flows

An experimental and numerical study of lateral jet interference with hypersonic cross flows was performed at ISL. The experiments were conducted with a generic high-velocity missile model in the ISL high-energy shock tunnel STA at Mach numbers of 4.5 and 6. For each Mach number two duplicated atmospheric altitude conditions, three angles of attack and three side jet pressure ratios were studied. The flow was visualized using differential interferometry and the surface pressure was measured with fast response pressure gauges. In parallel, a numerical simulation with a CFD code was done and the calculations were validated by the experiments. The CFD simulation allowed calculating the jet interaction amplification for the different experimental flow parameters.