relaxation factors for combustion solutions

hnemati · January 7, 2019, 04:34

Dear all
I am simulating a burner with combustion where I use Partially premixed for my combustion model. Despite the geometry is symmetry, the flame and the flow jet is not symmetry. Does anybody know the reason? Is it because of relaxation factors? I have to mention that I use outlet~vent boundary conditions for my outlet. Is that a problem?
With kind regards

LuckyTran · January 7, 2019, 23:23

Run longer. Probably a mesh issue. It's got almost nothing to do with relaxation factors or your outlet BC.

January 7, 2019, 04:34	relaxation factors for combustion solutions	#1
hnemati Member SAM Join Date: Apr 2012 Posts: 74 Rep Power: 14	Dear all I am simulating a burner with combustion where I use Partially premixed for my combustion model. Despite the geometry is symmetry, the flame and the flow jet is not symmetry. Does anybody know the reason? Is it because of relaxation factors? I have to mention that I use outlet~vent boundary conditions for my outlet. Is that a problem? With kind regards Last edited by hnemati; January 7, 2019 at 06:40.

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January 7, 2019, 23:23		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,748 Rep Power: 66	Run longer. Probably a mesh issue. It's got almost nothing to do with relaxation factors or your outlet BC.