Abstract
Direct numerical simulations of compressible supersonic turbulent channel flow with passive scalar transport are performed at the Reynolds numbers Re T of 455 and 544, at a Mach number of 1.5 and Prandtl and Schmidt numbers of 0.7 and 1.0, respectively. A mean scalar gradient is imposed across the mean flow. Budgets of the scalar variance and the scalar flux components are presented for both Reynolds numbers. A scaling of the Van-Driest transformed scalar similar to u VD + in the viscous is observed. Furthermore scalings of the Reynolds stress components and the pressure-rate-of-strain tensor that collapse both compressible and incompressible data in the outer layer are derived and investigated in more detail.
Published Version
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