[cfdsolver1]

Dear hello77, yes you can use if you want, but not needed. Boussinesq approximation is defined as rho = rho0*(1 - alpha*(T-T0)). where also you can obtain (rho-rho0)/rho.
The effect of Boussinesq approximation can be understood by calculating Richardson (Ri) number. If Ri << 1, the change of density with temperature is very low. Therefore, even you calculate Boussinesq approximation, it will be very small as (rho-rho0)/rho goes to zero. Therefore, you can ignore it. For example, run your case with fully forced convection, after that solve the same problem when Ri = 0.01. You will obtain the same results.

[Kim97]

Originally Posted by cm_jubayer

You can download it from here


Jubayer

I am trying to simulate a forced convection heat transfer problem using OpenFOAM. In my case, the hot flow flows through a pipe and the outside of the pipe is cooled by jet impingement. I am using chtMultiregionSimpleFoam and so far no luck and the tutorial is not much of a help. I am wondering if you still have your simulation with forced convection over a flat plate. If you do, would it possible for you to upload it again?

[Kim97]

What BC to be used in the p_rgh file for foced convection?

[mbennour]

Hi Jubayer, I'm doing my Master thesis on Openfoam could you please upload again the removed files from your dropbox. thank you very much

[mbennour]

Originally Posted by cm_jubayer

You can download it from here


Jubayer

hi Jubayer
I'm doing my Master thesis on Openfoam could you please upload the removed files on dropbox
thank you very much