Transient flow FSI

kedarerohan · May 11, 2018, 01:59

I am trying to simulate vibration in pipe due to flow. Simulation metod used is coupled analysis of transient structural & transient flow analysis.

But this analysis is consuming huge amount of space. In my case hard disc space required is >400 GB.

Is there any other way to reduce this simulation space?

Opaque · May 11, 2018, 09:46

How is the disk space being used? For transient files?

What kind of information do you require in the transient files? All of it, or just certain variables. For the latter, you should use Selected Variables.

Do you need the information for the whole volume? or just the boundaries?

ghorrocks · May 11, 2018, 23:55

As opaque states you can choose what variables go in the results file if you like. And in recent versions of CFX you can also select only a portion of the mesh or boundaries to be saved as well. So some combination of these will reduce the results file size a lot.

May 11, 2018, 01:59	Transient flow FSI	#1
kedarerohan New Member Rohan V. Kedare Join Date: Sep 2011 Posts: 3 Rep Power: 15	I am trying to simulate vibration in pipe due to flow. Simulation metod used is coupled analysis of transient structural & transient flow analysis. But this analysis is consuming huge amount of space. In my case hard disc space required is >400 GB. Is there any other way to reduce this simulation space?

May 11, 2018, 23:55		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	As opaque states you can choose what variables go in the results file if you like. And in recent versions of CFX you can also select only a portion of the mesh or boundaries to be saved as well. So some combination of these will reduce the results file size a lot. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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May 11, 2018, 09:46		#2
Opaque Senior Member Join Date: Jun 2009 Posts: 1,880 Rep Power: 33	How is the disk space being used? For transient files? What kind of information do you require in the transient files? All of it, or just certain variables. For the latter, you should use Selected Variables. Do you need the information for the whole volume? or just the boundaries?