CFD Online Logo CFD Online URL
Home > Wiki > Wall shear stress

Wall shear stress

From CFD-Wiki

Revision as of 18:16, 23 November 2011 by Peter (Talk | contribs)
Jump to: navigation, search

The wall shear stress, \tau_w, is given by:

\tau_w = \mu \left(\frac{\partial u}{\partial y} \right)_{y=0}

Where \mu is the dynamic viscosity, u is the flow velocity parallell to the wall and y is the distance to the wall.

My wiki