Skin friction coefficient
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Where <math>\tau_w</math> is the local [[wall shear stress]], <math>\rho</math> is the fluid density and <math>U_\infty</math> is the free-stream velocity (usually taken ouside of the boundary layer or at the inlet). | Where <math>\tau_w</math> is the local [[wall shear stress]], <math>\rho</math> is the fluid density and <math>U_\infty</math> is the free-stream velocity (usually taken ouside of the boundary layer or at the inlet). | ||
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| + | It is related to the momentum thickness as follows: <math>C_f \equiv 2\frac{\diff{theta}}{\diff{x}}</math> | ||
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''Someone should add some correlations and references for them here'' | ''Someone should add some correlations and references for them here'' | ||
{{stub}} | {{stub}} | ||
Revision as of 17:42, 7 April 2008
The skin friction coefficient, 
, is defined by:
Where 
is the local wall shear stress, 
is the fluid density and 
is the free-stream velocity (usually taken ouside of the boundary layer or at the inlet).
It is related to the momentum thickness as follows: Failed to parse (unknown function\diff): C_f \equiv 2\frac{\diff{theta}}{\diff{x}}
Someone should add some correlations and references for them here
