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Turbulent Prandtl number in the boundary layer on a plate: effect of the molecular Prandtl number, injection (suction), and longitudinal pressure gradient

Turbulent Prandtl number in the boundary layer on a plate: effect of the molecular Prandtl... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Turbulent Prandtl number in the boundary layer on a plate: effect of the molecular Prandtl number, injection (suction), and longitudinal pressure gradient

Thermophysics and Aeromechanics , Volume 25 (2): 14 – Mar 1, 2018

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Publisher
Springer Journals
Copyright
2018 Pleiades Publishing, Ltd.
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S0869864318020026
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Mar 1, 2018

References