Compressibility in suddenly expanded subsonic flows

This paper concerns implicit large eddy simulations of subsonic flows through a symmetric suddenly expanded channel. We aim at shedding light on the flow physics relatively high Reynolds number 10 000, based inlet bulk velocity and step height channel, examine compressibility effects for two Mach numbers, Ma = 0.1 0.5. Comparisons with experimental measurements are provided. In addition, we investigate structure separated regions, turbulence structures—through stress anisotropy componentality—and kinetic energy budgets. The results reveal that influences particular physics.