Suscripción a Biblioteca: Guest
Sixth International Symposium on Turbulence and Shear Flow Phenomena
June, 22-24, 2009 , Seoul National University, Seoul, Korea

DOI: 10.1615/TSFP6

Direct numerical simulations of canonical shock/turbulence interaction

pages 1345-1350
DOI: 10.1615/TSFP6.2140
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SINOPSIS

A set of direct numerical simulations of isotropic turbulence passing through a nominally normal shock wave are presented. Upstream of the shock, the microscale Reynolds number is 40, the mean Mach number is 1.3−6.0, and the turbulence Mach number is 0.22. It is shown that the Kolmogorov scale decreases during the shock-interaction, which implies that the grid resolution needed to resolve the viscous dissipation is finer than used in previous studies. This leads to some qualitative differences with previous work, e.g. that the streamwise vorticity variance increases rapidly behind the shock.

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