Abstract
Using the differential turbulence model supplemented by the transport equation for the turbulent heat flux, a numerical study is carried out of the dependence of the Prandtl turbulent number on the molecular Prandtl number, the intensity of the gas injection (suction) through the permeable wall, and the freestream acceleration (deceleration). The air and mixtures of helium with xenon and argon are considered as gas carriers, and mercury, water, and transformer oil are used as liquid carriers. The obtained results of calculations are consistent with the available experimental data for the turbulent Prandtl number and the quantities included in its definition.
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The work was financially supported by the Russian Science Foundation (Project No. 14-19-00499).
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Lushchik, V., Makarova, M. Turbulent Prandtl number in the boundary layer on a plate: effect of the molecular Prandtl number, injection (suction), and longitudinal pressure gradient. Thermophys. Aeromech. 25, 169–182 (2018). https://doi.org/10.1134/S0869864318020026
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DOI: https://doi.org/10.1134/S0869864318020026