[Other] Creating mesh from equation of surface

finn · July 22, 2019, 23:44

Hi all,

I'm attempting to run a simulation with OpenFoam for a geometry bounded by a surface (with equation z=1+k1*tan(k2)*y*cos(z)) and the xy plane with constraints on x, y. I've spent hours looking for a solution, and the only way forward I've been able to find is to write my own Python code to discretize the entire volume, which would be time consuming to say the least. Does anyone have any suggestions? Cheers.

Carlo_P · August 7, 2019, 06:04

Hey Finn,
I think taht you can try with BlockMesh.
You have to write down the equation and then you will have the mesh.

Otherwise, why don't try to design the geoemtry in a CAD file, maybe also in Salome, where you can put your Python file?
Cheers,
Carlo

finn · August 15, 2019, 13:16

Thanks Carlo, I ended up getting it working with blockMesh by using two blocks and defining their edges with splines.

July 22, 2019, 23:44	Creating mesh from equation of surface	#1
finn New Member Join Date: Jul 2019 Posts: 2 Rep Power: 0	Hi all, I'm attempting to run a simulation with OpenFoam for a geometry bounded by a surface (with equation z=1+k1tan(k2)y*cos(z)) and the xy plane with constraints on x, y. I've spent hours looking for a solution, and the only way forward I've been able to find is to write my own Python code to discretize the entire volume, which would be time consuming to say the least. Does anyone have any suggestions? Cheers.

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August 7, 2019, 06:04		#2
Carlo_P Senior Member Carlo_P Join Date: May 2019 Location: Italy Posts: 176 Rep Power: 7	Hey Finn, I think taht you can try with BlockMesh. You have to write down the equation and then you will have the mesh. Otherwise, why don't try to design the geoemtry in a CAD file, maybe also in Salome, where you can put your Python file? Cheers, Carlo

August 15, 2019, 13:16		#3
finn New Member Join Date: Jul 2019 Posts: 2 Rep Power: 0	Thanks Carlo, I ended up getting it working with blockMesh by using two blocks and defining their edges with splines.