How to create loop in Muticonfiguration run?

shivasluzz · April 22, 2018, 03:34

I use keyframe meshes with Multiconfiguration setup.
The motion is periodic.
How to create loop in Multi-configuration for periodic motion instead of manually creating so many
configurations?
Please help.

ghorrocks · April 22, 2018, 08:30

Would a session file help?

shivasluzz · April 22, 2018, 08:35

Can you please explain that?
For gear mesh simulation, I use keyframe meshes with multi-configuration. Once a tooth reaches the position of next tooth, is there any way to loop the last configuration to first configuration?
Thanks..

ghorrocks · April 22, 2018, 08:42

Record a session file in CFD-Post of the actions to record one tooth worth of simulation. Stop it and have a look at the session file it generates. You may be able to make it loop over all your configurations but editing the session file to do looping or other structures.

shivasluzz · April 22, 2018, 08:46

Again that becomes a manual looping. As of now, for the next cycle, I make the next configuration, with the Flow analysis of first configuration and with the initial values of last configuration. This method works but it is tedious. So I am looking for a automatic looping method.
Thanks.

ghorrocks · April 22, 2018, 19:26

Have you looked at a session file? It is not manual looping. I have done many repetitive complex tasks in session files.

You can use perl inside the session file to do looping, if/then/else, internal variables and so on. Or you can write a big session file which automates all the tasks with no perl, but you use something like python to generate all the details and generate a text file. This is my preferred option as I am more familiar with python than perl.

Or if you are looking for a button to press and it does your task.... well, I fear you are going to be disappointed.

shivasluzz · April 23, 2018, 09:29

Thanks ghorrocks :-)
I found perl's power syntax will satisfy my requirement

April 22, 2018, 03:34	How to create loop in Muticonfiguration run?	#1
shivasluzz Senior Member sluzzer Join Date: Jul 2014 Posts: 146 Rep Power: 12	I use keyframe meshes with Multiconfiguration setup. The motion is periodic. How to create loop in Multi-configuration for periodic motion instead of manually creating so many configurations? Please help.

April 22, 2018, 08:30		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Would a session file help? __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

April 22, 2018, 08:42		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Record a session file in CFD-Post of the actions to record one tooth worth of simulation. Stop it and have a look at the session file it generates. You may be able to make it loop over all your configurations but editing the session file to do looping or other structures. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

April 22, 2018, 19:26		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Have you looked at a session file? It is not manual looping. I have done many repetitive complex tasks in session files. You can use perl inside the session file to do looping, if/then/else, internal variables and so on. Or you can write a big session file which automates all the tasks with no perl, but you use something like python to generate all the details and generate a text file. This is my preferred option as I am more familiar with python than perl. Or if you are looking for a button to press and it does your task.... well, I fear you are going to be disappointed. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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April 22, 2018, 08:35		#3
shivasluzz Senior Member sluzzer Join Date: Jul 2014 Posts: 146 Rep Power: 12	Can you please explain that? For gear mesh simulation, I use keyframe meshes with multi-configuration. Once a tooth reaches the position of next tooth, is there any way to loop the last configuration to first configuration? Thanks..

April 22, 2018, 08:46		#5
shivasluzz Senior Member sluzzer Join Date: Jul 2014 Posts: 146 Rep Power: 12	Again that becomes a manual looping. As of now, for the next cycle, I make the next configuration, with the Flow analysis of first configuration and with the initial values of last configuration. This method works but it is tedious. So I am looking for a automatic looping method. Thanks.

April 23, 2018, 09:29		#7
shivasluzz Senior Member sluzzer Join Date: Jul 2014 Posts: 146 Rep Power: 12	Thanks ghorrocks :-) I found perl's power syntax will satisfy my requirement