Simple model for mean stress in turbulent boundary layers
Praveen Kumar, Krishnan Mahesh
Abstract
The governing equations for mean flow and available turbulent databases are used to derive a model for the mean shear stress in turbulent boundary layers. The model requires mean wall-normal velocity, for which a simple and compact fit is derived using existing data and scaling arguments. The model shows good agreement with available data over a range of Reynolds number.
Topics & Concepts
TurbulenceReynolds stressMean flowMechanicsShear stressScalingBoundary layerBoundary (topology)Reynolds numberSimple (philosophy)MathematicsRange (aeronautics)Reynolds stress equation modelStatistical physicsK-epsilon turbulence modelPhysicsMathematical analysisGeometryMaterials scienceK-omega turbulence modelEpistemologyComposite materialPhilosophyFluid Dynamics and Turbulent FlowsWind and Air Flow StudiesHeat Transfer Mechanisms