Partially Premixed Combustion not burning

raymond350 · January 15, 2014, 02:52

I would like to know the significance of partially premixed combustion simulation where no burning occurs? Does it signify the conditions are not favourable for combustion experimentally as well? Or is it some settings problem?

I had a mesh where burning occurs, but when I refined the mesh, no burning takes place. All settings are exactly the same.

Thanks.

bharath · January 15, 2014, 07:03

Try to interpolate your coarse mesh results with refined mesh and check it once.

raymond350 · January 15, 2014, 07:24

Can elaborate what do you mean by "interpolate coarse mesh results"?

Basically there is burning for the coarse mesh, and no burning for the fine mesh.

diamondx · January 15, 2014, 12:36

Quote:

"interpolate coarse mesh results"

Use the results you got with the coarse as an initial data for the refine mesh, and continue calculation on refined mesh, see what's going to happen.
You can do that using the file -» interpolate data

raymond350 · January 16, 2014, 05:37

The solution diverged after a few steps when I interpolate the coarse mesh data to the fine mesh.

raymond350 · January 21, 2014, 20:28

What is the significance if there is no burning?

Do people use partially-premixed combustion to determine if combustion is feasible?

January 15, 2014, 02:52	Partially Premixed Combustion not burning	#1
raymond350 New Member Join Date: Feb 2012 Posts: 18 Rep Power: 14	I would like to know the significance of partially premixed combustion simulation where no burning occurs? Does it signify the conditions are not favourable for combustion experimentally as well? Or is it some settings problem? I had a mesh where burning occurs, but when I refined the mesh, no burning takes place. All settings are exactly the same. Thanks.

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January 15, 2014, 07:03		#2
bharath Senior Member Bharath kumar Join Date: Apr 2009 Posts: 169 Rep Power: 17	Try to interpolate your coarse mesh results with refined mesh and check it once.

January 15, 2014, 07:24		#3
raymond350 New Member Join Date: Feb 2012 Posts: 18 Rep Power: 14	Can elaborate what do you mean by "interpolate coarse mesh results"? Basically there is burning for the coarse mesh, and no burning for the fine mesh.

January 16, 2014, 05:37		#5
raymond350 New Member Join Date: Feb 2012 Posts: 18 Rep Power: 14	The solution diverged after a few steps when I interpolate the coarse mesh data to the fine mesh.

January 21, 2014, 20:28		#6
raymond350 New Member Join Date: Feb 2012 Posts: 18 Rep Power: 14	What is the significance if there is no burning? Do people use partially-premixed combustion to determine if combustion is feasible?