[Divyaprakash]

I need to do the following.


I have a force that needs to implemented at various locations in the computational domain. This force I am calculating through some other program.



Let's say I write a text file which has the forces defined at all the locations corresponding to the mesh cell centers.



Is it possible to read this file and add it to the discretized equations of let's say PisoFOAM solver as a body force? At every timestep?



Please let me know if such a thing is possible in OpenFOAM. I would then venture further on how it could be done. Also please provide some guidance if tools exist to readily implement this into the solver.

[dlahaye]

https://www.openfoam.com/documentati...s-sources.html

Good luck.

[Divyaprakash]

Originally Posted by dlahaye

https://www.openfoam.com/documentati...s-sources.html

Good luck.

This isn't exactly what I need but thanks anyway. I was looking to implement it directly inside the source code.

[Tobermory]

Originally Posted by Divyaprakash

Let's say I write a text file which has the forces defined at all the locations corresponding to the mesh cell centers.

Is it possible to read this file and add it to the discretized equations of let's say PisoFOAM solver as a body force? At every timestep?

Yes - just make sure that the data is stored in OpenFOAM format, read it in as a field and apply it as an extra source term in the momentum equation. The first step is probably going to be the hardest one for you.