Dimensionless velocity
From CFD-Wiki
(Difference between revisions)
m |
|||
| Line 3: | Line 3: | ||
:<math>u^+ \equiv \frac{U}{u_*}</math> | :<math>u^+ \equiv \frac{U}{u_*}</math> | ||
| - | Where <math>U</math> is the local velocity and <math>u_*</math> is the [[Friction velocity|friction velocity]] at the closest wall. | + | Where <math>U</math> is the local velocity and <math>u_*</math> is the [[Friction velocity|friction velocity]] at the closest wall. |
| + | |||
| + | <math>u^+</math> is called the dimensionless velocity and is commonly used in boundary layer theory and in defining the [[Law of the wall|law of the wall]]. | ||
[[Category:Dimensionless parameters]] | [[Category:Dimensionless parameters]] | ||
Latest revision as of 15:02, 11 May 2006
A non-dimensional velocity for a wall-bounded flow can be defined in the following way:
Where 
is the local velocity and 
is the friction velocity at the closest wall.
is called the dimensionless velocity and is commonly used in boundary layer theory and in defining the law of the wall.
