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Energy exchanges in hypersonic flows
Phys. Rev. Fluids 7, L092601 – Published 16 September, 2022
DOI: https://doi.org/10.1103/PhysRevFluids.7.L092601
Abstract
We present a framework to quantitatively describe energy exchange in high-speed turbulent flows, also including the hypersonic regime. Governing equations are introduced which control the transport of the mean-field kinetic energy (), the turbulence kinetic energy (), the mean-field internal energy (), and the turbulence internal energy (). The common terms in the transport equations are found to represent energy exchanges and interactions among , and . The routes of energy exchange are then highlighted and quantified in hypersonic boundary-layer flow, with special attention paid to the effects of wall cooling.
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