Natural convection with High Ra
I am simulating the natural convection in an enclosed cavity (H/W=4)with high Ra up to 10^12 and the time averaged Nu at hot wall for Ra<=10^10 are agree well with those by Le Quere et al in 1995. But I have not found the results for larger Ra now. Would you please tell me where I can find them.
Thanks in advance. Baochang 
Re: Natural convection with High Ra
See Betts, P. L., and Bokhari, I. H., 2000, "Experiments on turbulent natural convection in an enclosed tall cavity", Int. J. Heat & Fluid Flow, 21, pp. 67568. It seems to me that Ra based on the heghit is about 2e+10 there.
Alexey. 
Re: Natural convection with High Ra
Dear Alexey,
Thanks a lot. For larger Ra? Baochang 
Re: Natural convection with High Ra
SEE
http://cfd.me.umist.ac.uk/tmcfd/expdata/bettbok.html FOR EXPERIMENTAL RESULTS OF Experiments on Turbulent Natural Convection in an Enclosed Tall Cavity P.L. Betts & I.H. Bokhari 
flow through rectagular cavity
flow (generated by turbulent natural convection)through long rectagular cavity (length=1.5m, width=0.15m, cavity=0.002m )please help me to form nevier stroke equation and procedure to solve it by finite volume method

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