Numerical modelling of a far momentumless turbulent wake in a linearly stratified medium using a modified equation for transport of dissipation rate
O.F. Voropayeva, B.B. Ilyushin*, and G.G. Chernykh**
Institute of Computational Technologies SB RAS, Novosibirsk, Russia
*Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
**Novosibirsk State University, Russia
Pages: 379–389
Abstract
The numerical analysis of the evolution of a momentumless turbulent wake in a linearly stratified medium has been carried out by using two mathematical models. The numerical results are compared with experimental data. The model based on improved algebraic representations of triple correlations of the velocity field and the transfer equation for dissipation rate gives a satisfactory description of the process of anisotropic decay of turbulence in the wake.
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