[senthilathiban]

Hi all,

I am modelling a flow through a wind tunnel and I need to set my inlet velocity as a function of height of the wind tunnel. (Velocity increases as height increases).

Is there any way to do it.


P.S: I am using Openfoam 4.0 and I think the groovyBC doesn't work.

[clapointe]

There are a number of ways to do this. I believe that I've previously compiled swak4Foam for OF4. If you don't want to use groovy bc, then a fixedProfile boundary condition will work -- you can define a functional form or read velocities (as a function of height) from a csv. Information on how to do this can be found here : https://github.com/OpenFOAM/OpenFOAM...FvPatchField.H.

Caelan

[senthilathiban]

Hi clapointe, Thanks for the info. I also found another way to do this. I got the cell location from writecellcentres command and then I calculated the velocity for each point and fed into the inlet as nonuniform list.

thanks once again for your quick reply.

[hmusaddiq]

Hello Senthilathiban,

Did you manually calculated the velocity and then manually add it in the 0.U file?

I am also having the same problem.

[senthilathiban]

Originally Posted by hmusaddiq

Hello Senthilathiban,

Did you manually calculated the velocity and then manually add it in the 0.U file?

I am also having the same problem.

Yes I calculated manually. But later I found another boundary condition fixedProfile

More infor at https://www.youtube.com/watch?v=rfNYVqU1py4&t=