[rocketLauncher]

Hi everyone,

I have managed to get my min, average, and max y+ values thanks to the function given here https://www.openfoam.com/documentati...eld-yPlus.html

However, I would really like to get data for a plot of y+ vs wall position, much like we do in ANSYS. Do you know a way to go about this?

Thanks in advance.

[Tobermory]

For the wall patch(es) that you are calculating yPlus on, just write out the face coordinates with:

postProcess -func writeCellCentres -time 0

This will write files C, Cx, Cy and Cz into the 0 folder, with the coordinates of both the internal field and the boundary patches - change the writeFormat in controlDict to ASCII to be able to read them. Now you have all the info you need. Good luck.

EDIT
Actually, a smarter way for the last part is to leave the writeFormat as binary and use the foamDictionary command to strip out the values (in ASCII) for the patches. For example, if your wall patch was called upperWall then you would simply run:

foamDictionary -entry boundaryField.upperWall.value 0/Cx