laminar diffusion flame

omalka636 · March 30, 2019, 06:26

hello guys !
I am new to Openfoam software and for my studies I need to model laminar diffusion flame.
the flame created by a burner with 2 pipes:
1. internal- gas flow.
2.external- air flow.

any suggestions for particular tutorial or model that can help me with this csae will gladly exepted!
appreciate a lot your help, thank you !

clapointe · March 30, 2019, 10:13

The smallPoolFire3D tutorial is likely a good place to start. It uses an sgs model, but the variant I use for personal testing that is similar to the tutorial ends up quite laminar.

Caelan

omalka636 · April 2, 2019, 02:47

hi Caelan,

my teacher told me the flame we need to model is axisymmetric so 2D model will be enough.

he recommend to do that in 2 ways:

1. change smallpoolfire2D from turbulence to laminar mode.
2. change the location of the gas,air inlet in counterFlowFlame2D tutorial.

any suggestions ?

thanks for the help !

clapointe · April 2, 2019, 11:38

It sounds like your professor gave you some good starting points. Good luck!

Caelan

March 30, 2019, 06:26	laminar diffusion flame	#1
omalka636 New Member omalk Join Date: Jan 2019 Posts: 3 Rep Power: 7	hello guys ! I am new to Openfoam software and for my studies I need to model laminar diffusion flame. the flame created by a burner with 2 pipes: 1. internal- gas flow. 2.external- air flow. any suggestions for particular tutorial or model that can help me with this csae will gladly exepted! appreciate a lot your help, thank you !

April 2, 2019, 02:47	axisymmetric model	#3
omalka636 New Member omalk Join Date: Jan 2019 Posts: 3 Rep Power: 7	hi Caelan, my teacher told me the flame we need to model is axisymmetric so 2D model will be enough. he recommend to do that in 2 ways: 1. change smallpoolfire2D from turbulence to laminar mode. 2. change the location of the gas,air inlet in counterFlowFlame2D tutorial. any suggestions ? thanks for the help !

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March 30, 2019, 10:13		#2
clapointe Senior Member Join Date: Aug 2015 Posts: 494 Rep Power: 14	The smallPoolFire3D tutorial is likely a good place to start. It uses an sgs model, but the variant I use for personal testing that is similar to the tutorial ends up quite laminar. Caelan

April 2, 2019, 11:38		#4
clapointe Senior Member Join Date: Aug 2015 Posts: 494 Rep Power: 14	It sounds like your professor gave you some good starting points. Good luck! Caelan