Problem Igniting the Methane Air Laminar Diffused Flame

muhammad mashhhood · July 25, 2017, 12:15

Hi!
I am trying to simulate the bunsen burner laminar diffused flame in reacting foam with single step chemistry. So far the simulation goes all well without combustion but currently I am stuck in sorting out the suitable way of starting smooth ignition of the flame using CH4 and O2 inlets from bottom of rectangular region. Any suggestion would be more than welcomed. Thank You!

ajithnair · April 28, 2022, 03:17

Hi. I suggest giving temperature patch using topoSet and fvConstraints . Also you can provide a heat source using fvmodels for a time frame.

I am using the dev version. For older versions I think it will be fvOptions file.

My personal experience till now is ignition occurs, but the temperature profiles are not correct, if you have solved this any other ways please share the case setup.

July 25, 2017, 12:15	Problem Igniting the Methane Air Laminar Diffused Flame	#1
muhammad mashhhood New Member muhammad mashhood Join Date: Apr 2013 Posts: 1 Rep Power: 0	Hi! I am trying to simulate the bunsen burner laminar diffused flame in reacting foam with single step chemistry. So far the simulation goes all well without combustion but currently I am stuck in sorting out the suitable way of starting smooth ignition of the flame using CH4 and O2 inlets from bottom of rectangular region. Any suggestion would be more than welcomed. Thank You!

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April 28, 2022, 03:17		#2
ajithnair New Member Ajith U K Nair Join Date: Sep 2021 Location: Kerala Posts: 18 Rep Power: 4	Hi. I suggest giving temperature patch using topoSet and fvConstraints . Also you can provide a heat source using fvmodels for a time frame. I am using the dev version. For older versions I think it will be fvOptions file. My personal experience till now is ignition occurs, but the temperature profiles are not correct, if you have solved this any other ways please share the case setup.