Abstract
A new framework to quantitatively describe the energy exchange in high-speed turbulent flows is presented. The routes of energy exchange in hypersonic boundary-layer flows are highlighted and quantified, with special attention paid to effects of wall cooling. We expect that the present study can help the development of physics-informed models for compressible turbulence in the class of RANS (Reynolds-averaged Navier-Stokes) and LES (large-eddy-simulation), which currently heavily hinge on variable-density extrapolation of their incompressible counterparts.
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