Law of the wall
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(changing "B" constant in formula to "C" constant so that the formula gets consistent with the "Where :" list of parameters) |
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In the log layer the velocity profile can be estimated with the log law: | In the log layer the velocity profile can be estimated with the log law: | ||
- | :<math>u^+ = \frac{1}{\kappa} \, ln(y^+) + | + | :<math>u^+ = \frac{1}{\kappa} \, ln(y^+) + C</math> |
and close to the wall in the viscous sublayer | and close to the wall in the viscous sublayer |
Revision as of 14:53, 5 September 2011
In the log layer the velocity profile can be estimated with the log law:
and close to the wall in the viscous sublayer
Where:
Dimensionless velocity Dimensionless wall distance von Karman's constant () Constant ()
We should have a lin-log plot here of a typical turbulent boundary layer to illustrate where the log-law is valid, anyone have one handy?
In the image y is replaced with the letter n.