Remeshing in Ansys Fluent

JohnnyB · July 23, 2014, 10:01

Hello,

I try to study the flow in a screw compressor with Ansys Fluent using the remeshing methods. I managed to get a mesh with 1.5 millions cells but after 30 time steps the software increased my number of cells at 3 millions...

Can someone help me to stop this cells number increasing?
What settings I must change to keep almost the same number of cells ?

Thank you!

sescobar · July 23, 2014, 15:04

You can limit the maximum number of cells, specify the number of refinement levels, or limit the minimum cell volume.

JohnnyB · July 24, 2014, 02:53

I try that but this was the result (from 1.5 mil cells to 3 mil in max 30 time step)...in the dynamic mesh settings you can change only the skewness and the minim cell ...i choose the same minim cell from the starting mesh...
You say that i can choose a bigger minim cell? Will i fix the problem with this settings?

sescobar · July 24, 2014, 08:59

http://www.arc.vt.edu/ansys_help/flu...nControls.html

July 23, 2014, 10:01	Remeshing in Ansys Fluent	#1
JohnnyB New Member Ion Join Date: May 2010 Posts: 16 Rep Power: 15	Hello, I try to study the flow in a screw compressor with Ansys Fluent using the remeshing methods. I managed to get a mesh with 1.5 millions cells but after 30 time steps the software increased my number of cells at 3 millions... Can someone help me to stop this cells number increasing? What settings I must change to keep almost the same number of cells ? Thank you!

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July 23, 2014, 15:04		#2
sescobar New Member Join Date: Jun 2011 Posts: 22 Rep Power: 14	You can limit the maximum number of cells, specify the number of refinement levels, or limit the minimum cell volume.

July 24, 2014, 02:53		#3
JohnnyB New Member Ion Join Date: May 2010 Posts: 16 Rep Power: 15	I try that but this was the result (from 1.5 mil cells to 3 mil in max 30 time step)...in the dynamic mesh settings you can change only the skewness and the minim cell ...i choose the same minim cell from the starting mesh... You say that i can choose a bigger minim cell? Will i fix the problem with this settings?

July 24, 2014, 08:59		#4
sescobar New Member Join Date: Jun 2011 Posts: 22 Rep Power: 14	http://www.arc.vt.edu/ansys_help/flu...nControls.html