# Wall shear stress

(Difference between revisions)
 Revision as of 13:47, 18 December 2008 (view source) (riclazelnoda)← Older edit Revision as of 14:49, 18 December 2008 (view source)Peter (Talk | contribs) m (Reverted edits by AcellIcotr (Talk) to last version by Jola)Newer edit → Line 1: Line 1: - liormo The wall shear stress, $\tau_w$, is given by: The wall shear stress, $\tau_w$, is given by:

## Revision as of 14:49, 18 December 2008

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.