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Matem. Mod., 2019, Volume 31, Number 11, Pages 3–20 (Mi mm4125)  

Numerical simulation of supersonic separated flow over inclined backward-facing step using RANS and LES methods

S. M. Bosnyakova, A. P. Dubenb, A. A. Zheltovodovc, T. K. Kozubskayab, S. V. Matyasha, S. V. Mikhailova

a Central Aerohydrodynamic Institute
b Keldysh Institute of Applied Mathematics of RAS
c Khristianovich Institute of Theoretical and Applied Mechanics

Abstract: A description of two methods for simulation of the flow around complex test configurations is considered. One method implements a well-known approach to solving the Reynolds-averaged Navier-Stokes equations with a closing differential turbulence model. Another method is based on scale-resolving wall-modelled LES approach (WMLES). The classical problem of the flow around the inclined backward-facing step with the generation of expansion waves, intensive shock waves and separated flow zones is considered. A comparison of computational and experimental data is done. The physics of the flow is described. The accuracy of the both approaches is evaluated.

Keywords: supersonic flow, back step, RANS, LES, WMLES, IDDES.

Funding Agency Grant Number
Russian Foundation for Basic Research 18-08-01436_а
Russian Academy of Sciences - Federal Agency for Scientific Organizations


DOI: https://doi.org/10.1134/S0234087919110017

Full text: PDF file (790 kB)
References: PDF file   HTML file

Received: 04.03.2019
Revised: 22.05.2019
Accepted:01.07.2019

Citation: S. M. Bosnyakov, A. P. Duben, A. A. Zheltovodov, T. K. Kozubskaya, S. V. Matyash, S. V. Mikhailov, “Numerical simulation of supersonic separated flow over inclined backward-facing step using RANS and LES methods”, Matem. Mod., 31:11 (2019), 3–20

Citation in format AMSBIB
\Bibitem{BosDubZhe19}
\by S.~M.~Bosnyakov, A.~P.~Duben, A.~A.~Zheltovodov, T.~K.~Kozubskaya, S.~V.~Matyash, S.~V.~Mikhailov
\paper Numerical simulation of supersonic separated flow over inclined backward-facing step using RANS and LES methods
\jour Matem. Mod.
\yr 2019
\vol 31
\issue 11
\pages 3--20
\mathnet{http://mi.mathnet.ru/mm4125}
\crossref{https://doi.org/10.1134/S0234087919110017}
\elib{https://elibrary.ru/item.asp?id=41137487}


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