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raghu December 21, 2000 14:07

need help!
 
I am solving flow in driven cavity(taking incompressible novier-stokes equation)how can i find out reynolds number(I have mue ,rho values & i have taken square cavity).

O. Reynolds December 21, 2000 14:28

giving help!
 
Reynold's Number is defined as:

Re = (\rho) *(Velocity Scale)*(length Scale)/ (\mu)

1. Determine your velocity scale. It could be the speed of your driving force?

2. Determine your length scale. size of box?

Usually other researchers will have already defined a Reynolds number. Its good to take their definition so you can compare results.


Bambi December 21, 2000 19:11

Re: giving more help!
 
see: Fluid mechanics in a driven cavity

P.N. Shankar and M.D. Deshpande

Annual Review in Fluid Mechanics

V.32 pp93-136

this should give you too much info. :)


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