Exact mathematical formulas for wall-heat flux in compressible turbulent channel flows
نویسندگان
چکیده
In this paper, several exact expressions for the mean heat flux at wall (qw) compressible turbulent channel flows are derived by using internal energy equation or total equation. Two different routes, including FIK method and RD method, can be applied. The direct numerical simulation data of Reynolds Mach numbers verify correctness formulas. Discussions related to equations, routes carried out, we may arrive conclusion that most formulas in present work just mathematical ones they generally lacking clear physical interpretation our opinion. They used estimate qw, but might not suitable exploring underlying physics.
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ژورنال
عنوان ژورنال: Acta Mechanica Sinica
سال: 2022
ISSN: ['1614-3116', '0567-7718']
DOI: https://doi.org/10.1007/s10409-021-09014-2