MODELING OF EQUATION FOR THE DISSIPATION RATE OF REYNOLDS 
STRESSES

E. P. Sukhovich

UDC 532.517.4

All the correlations involved in the equation for 
the rate of dissipation of kinetic turbulence energy are modeled. 
Approximations derived earlier are used as model relations. Modeling 
is performed by direct comparison of the approximations with the correlations 
obtained as a result of a numerical solution of the Navier-Stokes 
unsteady-state equations. The form of the approximations and the empirical 
coefficients are determined. Approximations for correlations involved 
in the equation for the tensor dissipation function are obtained. 
A new equation for the rate of turbulence-energy dissipation is proposed. 
The results of the work can be used to determine the Reynolds stresses 
in second-order turbulence models.

JEPTER74920199916
JEPTER7492016