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Matem. Mod., 2020, Volume 32, Number 6, Pages 3–20 (Mi mm4185)  

Les-based computation of evolution of turbulent wakes subjected to adverse pressure gradient

E. K. Guseva, M. Kh. Strelets, A. K. Travin, M. L. Shur

Peter the Great Saint-Petersburg Polytechnic University

Abstract: Results are presented of scale-resolving computations of mean and turbulent (including the dissipation rate of turbulent kinetic energy) characteristics of the turbulent wake of a flat plate subjected to Adverse Pressure Gradient (APG). The computations are performed in the framework of a zonal RANS-LES model for two configurations. In the first one, APG is created by a plane symmetric diffuser and in the second one by a system of two pairs of thin liner foils specially designed for this purpose. In the both cases a volumetric synthetic turbulence generator is used for creating turbulent content at the inlet of LES sub-domain. High accuracy of results of the simulations is supported by their weak sensitivity to grid-refinement. Obtained detailed data on the wakes’ characteristics may be used for validation and improvement of RANS turbulence models as applied to the considered class of flows.

Keywords: turbulent wake behind flat plate, unfavorable pressure gradient, zonal RANS-LES computations.

Funding Agency Grant Number
Russian Foundation for Basic Research 17-58-12002


DOI: https://doi.org/10.20948/mm-2020-06-01

Full text: PDF file (1737 kB)
References: PDF file   HTML file

Received: 21.10.2019
Revised: 21.10.2019
Accepted:25.11.2019

Citation: E. K. Guseva, M. Kh. Strelets, A. K. Travin, M. L. Shur, “Les-based computation of evolution of turbulent wakes subjected to adverse pressure gradient”, Matem. Mod., 32:6 (2020), 3–20

Citation in format AMSBIB
\Bibitem{GusStrTra20}
\by E.~K.~Guseva, M.~Kh.~Strelets, A.~K.~Travin, M.~L.~Shur
\paper Les-based computation of evolution of turbulent wakes subjected to adverse pressure gradient
\jour Matem. Mod.
\yr 2020
\vol 32
\issue 6
\pages 3--20
\mathnet{http://mi.mathnet.ru/mm4185}
\crossref{https://doi.org/10.20948/mm-2020-06-01}


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