Mu.Hesan's blog

Gas Burner Modeling in ANSYS Fluent

Mu.Hesan — Wed, 07 May 2014 11:53:03 +0000

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Hello everyone
Recently I've modeled 3 different kinds of natural gas burners in ANSYS Fluent (all of them non-premixed). I've used “Species Transport”, “Standard K-Epsilon” & “Eddy Dissipation”; then I ignited the model with “Adapt>Region, 1000Kelvin”. Streamlines are somehow OK, but maximum temperatures are approximately in all models 400 degrees more than experimental data. I asked some scholars and they told me they have same problem. Can anybody guide me to a model with more accurate result?

P.S: somebody told me to change the model to "Eddy Dissipation Concept". I did it. But this time burner even didn't start with "Adapt>Region"

Question about "usage of atmospheric flares (burners)" in refineries

Mu.Hesan — Tue, 22 Nov 2011 08:49:27 +0000

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Why do we use "atmospheric flares (Burners)" in preheat gas furnaces of refineries? What are benefits of usage of these kind of flares (burners) in refineries, in comparison whit other flares?!!!

Question about specific boundary condition in Fluent

Mu.Hesan — Thu, 08 Jul 2010 08:39:22 +0000

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software

Dear Friends

Does anybody know how can I add following boundary condition in Fluent software for outlet of an internal flow ? Is there any easy way without needing UDF or etc.

Where p is pressure, Re is Reynolds number and vn is the velocoty component normal to the outlet section.

PLZ.......