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Search: Posts Made By: Santiago
Forum: OpenFOAM Running, Solving & CFD June 6, 2019, 17:08
Replies: 7
Views: 332
Posted By Santiago
? BoussinesqPimpleFoam treats the buoyant...

?

BoussinesqPimpleFoam treats the buoyant term explicitely. Via the fvm::reconstruct the buoyancy term is calculated at the cells faces and set explicitely in the momentum equation. So, au...
Forum: OpenFOAM Running, Solving & CFD June 6, 2019, 04:29
Replies: 7
Views: 332
Posted By Santiago
A perfectly Valid Buossinesq solver

//...
fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
+ turbulence->divDevReff() == f + (1.5*rho-0.5*rho.oldTime())*g
...
Forum: OpenFOAM Running, Solving & CFD June 6, 2019, 03:13
Replies: 7
Views: 332
Posted By Santiago
Well, if you were to study Rayleigh-Benard...

Well, if you were to study Rayleigh-Benard convection in a cavity you would scale the temperature around the difference between the cold and hot plates. Dimensional scaling would defeat the purpose...
Forum: OpenFOAM Running, Solving & CFD June 5, 2019, 16:10
Replies: 7
Views: 332
Posted By Santiago
Such advantage is just conventional. You could...

Such advantage is just conventional. You could perfectly work with the dynamic pressure and the buoyancy term for the fluctuations over a statistical mean. That is, hydrostatic pressure of the...
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