logarithmic velocity profile

logarithmic velocity profile

[′läg·ə‚rith·mik və′läs·əd·ē ‚prō‚fīl]
(meteorology)
The theoretical variation of the mean wind speed with height in the surface boundary layer under certain assumptions.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
If we employ Prandtl's logarithmic velocity profile (du/dy = [u.sub.*]/ky) in formula (11), then the Rouse formula (3) can be achieved.
A logarithmic velocity profile as presented in Figure 3 is created using user-defined functions (UDF) in Fluent based on the following formulation [22]:
This displacement can be expressed formally by introducing an equivalent viscosity [[mu].sub.sl] into the well-known logarithmic velocity profile, giving: