A discontinuous Galerkin method for implicit LES of moderate Reynolds number flows

[en] This work is part of the development of a new generation of CFD solvers on the basis of the discontinuous Galerkin Method (DGM), specifically targeted towards accurate, adaptive, reliable and fast DNS and LES of industrial aerodynamic flows. In this study, the ability of the method to perform accurate implicit LES is investigated. The method is firstly assessed on the well-known turbulent channel flow. Several Reynolds number (up to Reτ = 950) are studied. The results show a fair agreement with the reference DNS, showing the ability of the method to perform accurate ILES on regular grids. Then, the method is applied on several advanced benchmarks (studied in the European project IDIHOM), performed at moderate Reynolds number. The 2D periodic hill flow, the low pressure turbine blade T106C and the JEAN nozzle benchmarks are considered. Encouraging results have been obtained, paving the way to the use of the method for industrial applications.

Disciplines :

Aerospace & aeronautics engineering
Mechanical engineering

Author, co-author :

Carton de Wiart, Corentin; Cenaero

Hillewaert, Koen ; Cenaero

Language :

English

Title :

A discontinuous Galerkin method for implicit LES of moderate Reynolds number flows

Publication date :

2015

Event name :

AIAA SciTech, 53rd AIAA Aerospace Sciences Meeting

Event place :

Kissimee, FL, United States

Event date :

5-9 january 2015

Audience :

International

Main work title :

AIAA SciTech, 53rd AIAA Aerospace Sciences Meeting

Peer reviewed :

Peer reviewed

European Projects :

FP7 - 265780 - IDIHOM - Industrialisation of High-Order Methods – A Top-Down Approach

Funders :

CE - Commission Européenne [BE]

Available on ORBi :

since 11 August 2021

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