Skin friction coefficient
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| - | It is related to the momentum thickness as follows: <math>C_f \equiv 2\frac{\ | + | It is related to the momentum thickness as follows: <math>C_f \equiv 2\frac{\{d theta}}{\{d x}}</math> |
Revision as of 17:44, 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 (syntax error): C_f \equiv 2\frac{\{d theta}}{\{d x}}
Someone should add some correlations and references for them here
