iso surface in Openfoam

farensheep · June 23, 2017, 11:20

Hi everyone,

For my simulations I like to have the iso surface of temperature or heat release. But when I look at the vtk file, the output is not smooth at all (see the attached picture). I've tried to smooth it using paraview but the result is still not good (and it is numerically expensive).

Is there a way to improve the iso-surface output? I've tried to look at the doc and I've found nothing about it...

Thank you for your help

gentela · June 23, 2017, 11:24

I have the same problem and haven't found a working way around it!

JNSN · June 24, 2017, 13:54

Try the latest Paraview 5.4 . Import the foam case directly an generate the iso surface in Paraview. When you switch off decomposepolyhedra option and do not triangulate, you get a nice smooth surface.

Sent from my D5803 using CFD Online Forum mobile app

farensheep · June 24, 2017, 14:58

Thank you for your reply.

With paraview it is working but I have to save the fields during my simulation and this is something I've tried to avoid (space consuming).

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June 23, 2017, 11:24		#2
gentela New Member Ali Join Date: Apr 2010 Location: Greenville, South Carolina, USA Posts: 11 Rep Power: 16	I have the same problem and haven't found a working way around it!

June 24, 2017, 13:54		#3
JNSN Senior Member Jan Join Date: Jul 2009 Location: Hamburg Posts: 137 Rep Power: 19	Try the latest Paraview 5.4 . Import the foam case directly an generate the iso surface in Paraview. When you switch off decomposepolyhedra option and do not triangulate, you get a nice smooth surface. Sent from my D5803 using CFD Online Forum mobile app

June 24, 2017, 14:58		#4
farensheep New Member Alexis Marchand Join Date: Jun 2015 Posts: 4 Rep Power: 10	Thank you for your reply. With paraview it is working but I have to save the fields during my simulation and this is something I've tried to avoid (space consuming).