realizable k epsilon turbulence model errors

bexx4444 · March 14, 2016, 20:14

Hi,

I am trying to run a simulation of wind flow through a city. I am using the realizable kepsilon turbulence model and solving using simpleFoam.

When I run my model on a simpler mesh (smaller geometry) it seems to work fine, however, when I import my city it crashes and outputs the following errors in the log.simpleFoam file. I also tried the model with a standard kepsilon model and it produces the same errors.

If anyone can help I would be extremely grateful!

Thank you

davidwilcox · March 21, 2016, 04:50

i see the dreaded "floating point" error. simple and general answer would be to check your mesh. In a meshed city, you might have a few overlapping elements, surface orientation, etc because the geometry is complex.

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March 21, 2016, 04:50		#2
davidwilcox Senior Member david Join Date: Oct 2012 Posts: 142 Rep Power: 14	i see the dreaded "floating point" error. simple and general answer would be to check your mesh. In a meshed city, you might have a few overlapping elements, surface orientation, etc because the geometry is complex.