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Thermophysics and Aeromechanics

2021 year, number 4

Numerical simulation of a three-dimensional flow in a channel with interaction of a plane shock wave and a streamwise ribbed surface

I.I. Mazhul
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: numerical simulation, supersonic flow, rectangular channel, streamwise ribbed surface, streamwise vortex structures


Results of numerical simulations of a supersonic flow in a channel with a rectangular cross section having a streamwise ribbed lower surface are reported. The channel contains a constricting input section, where the cowl lip generates a shock wave incident onto the lower surface, and a subsequent constant-area section. The present numerical simulations are performed for a viscous three-dimensional flow with the use of the Reynolds-averaged Navier-Stokes equations and k-w SST turbulence model. The computations are performed for the free-stream Mach number М = 4.