Numerical models of a far turbulent wake of an elongated body of revolution
A.G. Demenkov1,2, O.A. Druzhinin3, and G.G. Chernykh4,5,6
1 Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2 Novosibirsk State Technical University, Novosibirsk, Russia
3 Institute of Applied Physics RAS, Nizhny Novgorod, Russia
4 Institute of Computational Technologies SB RAS, Novosibirsk, Russia
5 Novosibirsk State University, Novosibirsk, Russia
6 Siberian State University of Telecommunications and Information Sciences, Novosibirsk, Russia
E-mails: demenkov@itp.nsc.ru; druzhinin@hydro.appl.sci-nnov.ru; chernykh@ict.nsc.ru
Keywords: turbulent wake of an elongated body of revolution, mathematical modeling, DNS, semi-empirical models of turbulence, self-similar decay
Pages: 929–632
Abstract
The
work presents a comparison of numerical models of a far turbulent
wake of a towed elongated body of revolution in a homogeneous fluid:
model based on the direct numerical simulation, and two semi-empirical
models involving the equation of the turbulence energy balance.
Computational results demonstrate the self-similarity of the decay
and agree with known experimental data.
DOI: 10.1134/S0869864316060159
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