Implicit mesh update restriction for faster calculation

burning_bert · June 18, 2016, 08:14

Hello folks.

I am working with dynamic meshing and due to instabilities from the coupled calculation of flow field and rigid solid motion calculation using UDF, I have to use implicit mesh update to achieve stability.

The big issue is that using implicit mesh update, calculation process of each time step became very time consuming, my beard is growing a lot.

Implicit mesh update can only be "restricted" to be called in every iteration of the time-step using a frequency within the time step iterations (For example every 10 interations)

What I need is to update the mesh during the first iterations and not during the complete time-step iterations. For example, first 20 iterations of the time step.

Thanks for your help.

Regards

Alberto

rsaurabh · May 28, 2017, 17:59

Hi,
I hope you might have find solution for you problem.
I am also facing same problem. If you know how to handle this problem, please share this information.
Thanks and regards
Saurabh

June 18, 2016, 08:14	Implicit mesh update restriction for faster calculation	#1
burning_bert New Member Alberto Menéndez Join Date: Jun 2016 Posts: 3 Rep Power: 10	Hello folks. I am working with dynamic meshing and due to instabilities from the coupled calculation of flow field and rigid solid motion calculation using UDF, I have to use implicit mesh update to achieve stability. The big issue is that using implicit mesh update, calculation process of each time step became very time consuming, my beard is growing a lot. Implicit mesh update can only be "restricted" to be called in every iteration of the time-step using a frequency within the time step iterations (For example every 10 interations) What I need is to update the mesh during the first iterations and not during the complete time-step iterations. For example, first 20 iterations of the time step. Thanks for your help. Regards Alberto

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May 28, 2017, 17:59		#2
rsaurabh Member saurabh kumar gupta Join Date: Jul 2016 Location: kanpur,india Posts: 53 Rep Power: 10	Hi, I hope you might have find solution for you problem. I am also facing same problem. If you know how to handle this problem, please share this information. Thanks and regards Saurabh