Dynamic mesh problem

rohit.jain092 · July 7, 2013, 23:51

*URGENT*
Hi guys
I am trying to generate 2D waves in fluent using an oscillating wall.
But after 15 odd iterations, it gives an error of negative volume.

I have attached the pictures of mesh before and after the calculation.
Can anybody please tell me if there is anything wrong with my mesh or there is some problem in the setup.
Thank you

rohit.jain092 · July 8, 2013, 00:25

And currently I have created only one dynamic zone i.e. the moving wall. I am using the only the layering option.

poya0070 · September 7, 2013, 13:14

about this problem i study in fluent lecture that must be to have a skewness less than 0.7 or acceptable(less than 0.9-0.95, i dont know more).
but in my project resolve this notice and problem yet appear(Although in more time step) and in preview mesh motion the quality orthogonal after several time step is less than 0.05. and then error ......

what setting in remeshing and smothing is required to resolve this problem ?

September 7, 2013, 13:14	negative volume	#3
poya0070 New Member poya Join Date: Jun 2013 Posts: 7 Rep Power: 12	about this problem i study in fluent lecture that must be to have a skewness less than 0.7 or acceptable(less than 0.9-0.95, i dont know more). but in my project resolve this notice and problem yet appear(Although in more time step) and in preview mesh motion the quality orthogonal after several time step is less than 0.05. and then error ...... what setting in remeshing and smothing is required to resolve this problem ?

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July 8, 2013, 00:25		#2
rohit.jain092 New Member Rohit Jain Join Date: Feb 2013 Posts: 13 Rep Power: 13	And currently I have created only one dynamic zone i.e. the moving wall. I am using the only the layering option.