Effect of slip boundary condition on flow computation in the presence of rotational body forces

Autor: Chuen-Yen Chow, Sin-sung Chen, Mahinder S. Uberoi
Rok vydání: 1981
Předmět:
Zdroj: Computers & Fluids. 9:389-393
ISSN: 0045-7930
DOI: 10.1016/0045-7930(81)90010-4
Popis: The slip boundary condition often used in numerical computation of flow problems is examined to find its influence on the solution when there is a rotational body force field. Two specific examples are considered having different force distributions that are generated electromagnetically. The numerical study shows that in a fluid region weakly affected by the body force, a slip wall can be used to approximate a realistic no-slip solid surface if the reynolds number is reasonably large. On the other hand, in a region where the body force has a strong effect, a no-slip wall may never be replaced by a slip wall even if the Reynolds number is extremely high.
Databáze: OpenAIRE