Constrained large-eddy simulation of turbulent flow over rough walls
Wen Zhang, Minping Wan, Zhenhua Xia, Jianchun Wang, Xi‐Yun Lu, Shiyi Chen
Abstract
Structures of wall turbulence due to the mean shear created by the wall are generated. Numerical tests are performed with the rough-wall-like mean shear imposed in the near-wall region without resolving the surface roughness in the constrained large-eddy simulation. The results indicate that the major effects of roughness on wall turbulence can be well reproduced.
Topics & Concepts
TurbulenceLarge eddy simulationMechanicsSurface finishSurface roughnessRough surfaceGeologyMean flowFlow (mathematics)Hydraulic roughnessMaterials sciencePhysicsComposite materialFluid Dynamics and Turbulent FlowsWind and Air Flow StudiesAerodynamics and Acoustics in Jet Flows