About modelling of unsteady turbulent boundary layer formation within SA-IDDES approach-Reference-Cited by-同舟云学术

About modelling of unsteady turbulent boundary layer formation within SA-IDDES approach

Published:2022 Issue:33 Volume: Page:1-34
ISSN:2071-2898
Container-title:Keldysh Institute Preprints
language:
Short-container-title:KIAM Prepr.

Author:

Solomatin Roman Sergeevich¹^ORCID

Affiliation:

1. KIAM RAS postgraduate studies

Abstract

A mathematical model and numerical algorithm for unsteady turbulent flows is considered. The IDDES approach based on the turbulence model of Spalart and Allmaras (SA) is applied. Performance of the computational algorithm, based on the LU-SGS–GMRES combined method, and scheme dissipation properties regarding convective fluxes discretization is investigated in order to choose optimal scheme for vortex-resolving IDDES modelling. Numerical solution of the unsteady turbulent boundary layer formation in rectangular periodic channel for supersonic flow is carried out to perform verification and validation of the IDDES approach realization and to study features of hybrid time marching schemes.

Publisher

Keldysh Institute of Applied Mathematics

Subject

General Medicine

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