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Numerical tests of a new molecule-dependent momentum transport equation

Author

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  • Jirkovsky, L.
  • Bo-ot, L.Ma.

Abstract

It is shown that a new incompressible fluid equation is obtained by inclusion of a new dimensionless coupling parameter in the momentum transport equation derived in [L. Jirkovsky, L. Bo-ot, Momentum transport equation for the fluids using projection–perturbation formalism and onset of turbulence, Physica A 352 (2005) 241–251] from the Boltzmann kinetic equation where the Boltzmann collision integral includes inelastic interactions of quantum origin among the particles of the fluid. Numerical results from the equation for the plane and circular Poiseuille flows are consistent with the observations. The numerical tests also manifest a difference in the onset of turbulence between the flat plates and the circular pipe flow systems. Although all obtained velocity profiles are flattened at the center–a feature of turbulence–the results demonstrate greater stability of the velocity profiles in the circular pipe flow.

Suggested Citation

  • Jirkovsky, L. & Bo-ot, L.Ma., 2008. "Numerical tests of a new molecule-dependent momentum transport equation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(21), pages 5012-5016.
    • Handle: RePEc:eee:phsmap:v:387:y:2008:i:21:p:5012-5016
    DOI: 10.1016/j.physa.2008.05.006
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    1. Jirkovsky, L. & Bo-ot, L., 2005. "Momentum transport equation for the fluids using projection–perturbation formalism and onset of turbulence," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 352(2), pages 241-251.
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