The effect of a pulse-periodic energy deposition on the mixing of a supersonic jet interacting with an oblique shock wave is solved numerically using the two-dimensional (2D) Unsteady RANS (URANS) and Euler Equations (UEE). A low- or high-density air jet at M_j = 1.05 is injected into a cocurrent supersonic air stream with Mach number of M_∞ = 2.5. The oblique shock is generated by a ramped step with a windward side inclination angle of 20 degree. The pulse-periodic energy supply realized above the jet, enhances the mixing significantly. Such effect is caused by the large-scale vortical structures generation due to baroclinic vorticity imposed in the shear layer and the suction effect of the vortex ring induced by the energy deposition zone interacting with oblique shock. A low 4.2% loss of the time averaged total pressure recovery coefficient is obtained at the outlet of the computational domain caused by energy deposition. The differences between predicted flow field structures in the framework of URANS and UEE are discussed.
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