Effect of wall perturbations on the receptivity of a hypersonic boundary layer

摘要: The receptivity of a Mach 5.92 flat plate boundary layer to periodic two-dimensional wall perturbations is studied by numerical simulations and linear stability theory (LST). Free stream flow conditions are the same as leading edge experiment Maslov et al., J. Fluid Mech. 426, 73 (2001). Steady base simulated solving compressible Navier–Stokes equations with combination fifth-order shock-fitting method second-order total variation diminishing scheme. accuracy steady validated comparisons experimental measurements al. self-similar boundary-layer solution. In simulations, streamwise velocity perturbation, blowing suction, temperature perturbation introduced forcing slot on plate. A model proposed based physical properties electric pulse generator used in Stability characteristics boundary-l...