Semiempirical Model of Convective Heat Transfer of Turbulent Gases

On the basis of the Prandtl semiempirical wall-turbulence hypothesis, the author has substantiated theoretically the possibility of setting boundary conditions to the equations of a mathematical model of turbulent motion and convective heat transfer of a gaseous medium on a coarse grid. It has been shown that the results of numerical simulation are in agreement with experimental data on the heat transfer of air and high-temperature gases in tubes.

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Correspondence to V. A. Kuznetsov.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 93, No. 3, pp. 565–572, May–June, 2020.

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Kuznetsov, V.A. Semiempirical Model of Convective Heat Transfer of Turbulent Gases. J Eng Phys Thermophy 93, 543–550 (2020). https://doi.org/10.1007/s10891-020-02151-2

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Keywords

  • mathematical model
  • heat transfer of gases
  • boundary layer
  • turbulence
  • semiempirical hypothesis
  • adequacy