The Pressure-Strain Correlation of a Turbulent Homogeneous Shear Flow Under Strongly-Stable Stratification

  • T. Gerz
  • U. Schumann
Conference paper

Abstract

Results are presented concerning the direct numerical solution of the exact time-dependent three-dimensional Navier-Stokes equations and the first law of thermodynamics for an incompressible turbulent flow possessing uniform gradients of the mean velocity and temperature in the vertical direction. The equations are solved in a cubical domain representing a part of the homogeneous flow and divided into 643 grid cells. Boundary conditions are periodic in the horizontal and shear-periodic in the vertical (shear) direction. The model is described in detail in ELGHOBASHI et al. [1] and in SCHUMANN et al. [2].

Keywords

Stratification 

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References

  1. 1.
    Elghobashi,S.; Gerz,T.; Schumann,U. 1985: Direct simulation of a turbulent homogeneous shear flow with buoyancy; Proc. 5th Symp. on Turbulent Shear Flows, Aug.7–9,1985, Cornell Univ., Ithaca, New York, pp.22. 7–22. 12Google Scholar
  2. 2.
    Elghobashi,S.; Gerz,T.; Schumann,U. 1985: Direct simulation of a turbulent homogeneous shear flow with buoyancy; Proc. 5th Symp. on Turbulent Shear Flows, Aug.7–9,1985, Cornell Univ., Ithaca, New York, pp.22. 7–22. 12Google Scholar
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    Komori,S.; Ueda,H.; Ogino,F.; Mizushina,T. 1983: Turbulence structure in stably stratified open-channel flow; J.Fluid Mech., 130, 13–26.CrossRefADSGoogle Scholar
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    Launder,B. 1975: On the effects of a gravitational field on the turbulent transport of heat and momentum; J.Fluid Mech., 67, 3, 569–581.CrossRefADSGoogle Scholar
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    Launder,B. 1976: Heat and mass transport; in: Topics in Applied Physics, ed. Bradshaw, Vol.12 (“Turbulence”), Springer-Verlag, 232–287.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • T. Gerz
    • 1
  • U. Schumann
    • 1
  1. 1.Institut für Physik der AtmosphäreDFVLRWeßlingFed. Rep. of Germany

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