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problem of kappat in buoyantBoussinesqSimpleFoam

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Old   October 2, 2011, 05:45
Default problem of kappat in buoyantBoussinesqSimpleFoam
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hi everyone

i solved problem for 2D laminar & nonisothermal cavity flow problem for nondimensional it means i took dimension for nu =1, pr=1,beta=1 & i took reftemp=0.

my right wall temp=0 & left wall temp=1 it means left wall is heated.another r insulated.

so now i only varies gravitational constant "g" so for that problem i compare my result with bench mark result. it match with benchmark result.

it means i varies gresoff number with "g".

but when i took the pr number= 0.5 or 0.1 or say less than 1 and i solved the problem but it cant match with benchmark result so i very much confused in property kappat.

so give me advice if i will solve the problem for different pr number than what r the properties will change?
and tel me also what is the roll of kappat because i saw the code but i cant understand.

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