patch injection problem, a possible bug?

jsltlx · September 23, 2009, 16:33

Hello everyone,

I'm trying to use patch injection in Lagrangian modeling. I found some strange things in my cases.
1. For one case, I defined patch injections at three inlets. However, for one of the three inlets, I didn't see any particles injected (the other two worked fine).
2. For another case, I defined one patch injection and it seems to be working fine with 32 processors. However, I don't see any particles injected if I use 64 or 128 processors (cone injection still works).

What could be the possible reason for this? Could this be a bug? Any help will be highly appreciated. Thanks.

Cheng

mattijs · September 24, 2009, 17:59

It is not just a matter of the patch not being present on your domain? Do you have a testcase that you can post or send?

jsltlx · September 25, 2009, 11:02

Quote:

Originally Posted by mattijs

It is not just a matter of the patch not being present on your domain? Do you have a testcase that you can post or send?

Hi Mattijs,

I'll email you the second case soon. Thanks.

Cheng

mattijs · November 3, 2009, 14:40

The injected mass and volume was not adapted for parallel running. Fixed in 1.6.x.

sankarv · April 20, 2010, 09:42

Dear mattijs

I have a question on PatchInjection too.

It is not cleat to me how to set parcelPersecond, when I use the patchInjection.

What is its relationship of parcelspersecond with volume flow rate and totalmass of particles ?

Can you please tell me ?

Thanks
Vaidya

September 23, 2009, 16:33	patch injection problem, a possible bug?	#1
jsltlx New Member Cheng Join Date: Apr 2009 Posts: 6 Rep Power: 17	Hello everyone, I'm trying to use patch injection in Lagrangian modeling. I found some strange things in my cases. 1. For one case, I defined patch injections at three inlets. However, for one of the three inlets, I didn't see any particles injected (the other two worked fine). 2. For another case, I defined one patch injection and it seems to be working fine with 32 processors. However, I don't see any particles injected if I use 64 or 128 processors (cone injection still works). What could be the possible reason for this? Could this be a bug? Any help will be highly appreciated. Thanks. Cheng

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September 24, 2009, 17:59		#2
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 26	It is not just a matter of the patch not being present on your domain? Do you have a testcase that you can post or send?

November 3, 2009, 14:40		#4
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 26	The injected mass and volume was not adapted for parallel running. Fixed in 1.6.x.

April 20, 2010, 09:42		#5
sankarv New Member sankarv Join Date: Feb 2010 Posts: 26 Rep Power: 16	Dear mattijs I have a question on PatchInjection too. It is not cleat to me how to set parcelPersecond, when I use the patchInjection. What is its relationship of parcelspersecond with volume flow rate and totalmass of particles ? Can you please tell me ? Thanks Vaidya