We have now some experience with your FC WB/OF module. Congratulations with great work! We like to share some user experience.
It was only accidentally that we discovered that the current implementation of "object U" in the 0 folder at solver start by default sets the boundary conditions for unspecified faces at "slip" (so, by default this applies to the non-inlets, not-outlets or otherwise purposely constrained faces). Actually, we had expected those default constraints to be set at a type of "noSlip".
After we became aware of this matter, we repeated all our simulations, by manually editing each just written solver case, before actually running it. In the folder "case/0", we edited the file "U" as follows:
Code: Select all
defaultFaces
{
type slip;
value $internalField;
}
Code: Select all
defaultFaces
{
type movingWallVelocity;
value uniform (0 0 0);
}
If you agree with our approach, we suggest an option to be added to the WB, forcing the user to make an explicit choice for the constraint settings of the non-specified faces. And to make the editing possible inside the WB, rather than as an escape route in between two actions (between Write Case and Run Solver).
What is your view?
Best regards,
Roland (also on behalf of Sebastiaan)