Hi Foamers,

I am trying to reproduce a simple result by buoyantBoussinesqSimpleFoam solver (OpenFoam 3.1.1 version). I have already set the simulation but not sure whether the set up is 100% correct or not. The description of the problem is attached here. This is basically a laminar case. I took geometry according to this paper. I think the difficulty is in choosing boundary conditions. I have chosen my boundary conditions according to the attached problem is as follows,

Quote:

Velocity: Hot wall – fixedValue, uniform (0 0 0) Top and Bottom wall - fixedValue, uniform (0 0 0) Open boundary – zeroGradient Default faces-empty Temperature: Hot wall – fixedValue, uniform 333 Top and Bottom wall - zeroGradient Open boundary – inletOutlet, Inletvalue - uniform 289, value- 289 Default faces-empty P_rgh: Hot wall – fixedFluxPressure, rho-rhok, uniform 0 Top and Bottom wall- fixedFluxPressure, rho-rhok, uniform 0 Open boundary – fixedValue, uniform 0 Default faces-empty P: Hot wall – Calculated (0) Top and Bottom wall - Calculated (0) Open boundary – Calculated (0) Default faces-empty |

I have got some result but it is not similar to that related problem.

Can anyone tell what is the mistake that I choose in my boundary conditions based on the OpenFOAM solvers?

OpenFOAM

__Answers:__

Hi,

Your problem description states temperature of 1K.any reasons to specify 333 K at hotwall side and 289 K at outlet.

Other than that, the setup seems to be fine.

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