Fluid volume extraction for CFD simulation

[CFD-ROC]

Hello all,
I would like to know from the Community, what is your best-practice proceeding and Software (preferably opensource) to extract the fluid volume of complex CAD geometries (valves for example) as part of the pre-processing activities for OpenFOAM CFD simulation? For rather simple geometries FreeCAD (boolean operations) seems to do the job quite well.

Thanks!

[NewJoker]

Boolean operations in FreeCAD and snappyHexMesh utility included in OpenFOAM are usually sufficient but Salome_Meca may help in more complex cases: https://www.youtube.com/watch?v=XkzQoCLW-MI

[CFD-ROC]

Thanks @NewJoker

Is there any good Tutorial available for the snappyHexMeah utility to do this job?

[NewJoker]

Is there any good Tutorial available for the snappyHexMeah utility to do this job?

snappyHexMesh is largely automated and supported in CfdOF. The most important part is specifying the coordinates of the point inside the fluid domain so that the tool knows which volume should be meshed. Here you can learn more about the operation of this utility: https://www.openfoam.com/documentation/ ... sh-utility

[CFD-ROC]

Thank you!