Wall-Modeling Large Eddy Simulation on rough wall for High Reynolds Number Flow

DOI

10.2991/ic3me-15.2015.385How to use a DOI?

Keywords

Wall-Model, LES, boundary layer, rough wall, wall shear stress.

Abstract

In this work a wall-modeled LES is developed to solve the basic flow character over rough wall on high Reynolds number without resolving the details of the roughness elements. The averaged roughness shear stress can be combined with the smooth wall shear stress in the inner layer wall-model. The instantaneous shear stress caused by the roughness elements are calculated by the pressure projection and the elevation fields. The total shear stress is given back to the outer layer LES mesh as a new boundary condition. The comparison between simulation and the experiment reveals that the wall-modeled LES approach in this research is capable to predict the flow in rough wall boundary layer without resolving the detailed roughness element geometries.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yu Liu
AU  - Mingbo Tong
AU  - Binqi Chen
AU  - Fangli Wang
PY  - 2015/08
DA  - 2015/08
TI  - Wall-Modeling Large Eddy Simulation on rough wall for High Reynolds Number Flow
BT  - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering
PB  - Atlantis Press
SP  - 2003
EP  - 2007
SN  - 2352-5401
UR  - https://doi.org/10.2991/ic3me-15.2015.385
DO  - 10.2991/ic3me-15.2015.385
ID  - Liu2015/08
ER  -