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-   -   Nonpremixed CH4/air combustion (HELP) (http://www.cfd-online.com/Forums/fluent/38212-nonpremixed-ch4-air-combustion-help.html)

Hilda October 12, 2005 08:41

Nonpremixed CH4/air combustion (HELP)
 
Hi all, I want to simulate a nonpremixed combustion of coaxial methane and air jets issuing into a circular duct. I need someone to guide me through a step by step procedure of prePDF and Fluent. I already have the grid. Thanks.

zxaar October 12, 2005 08:58

Re: Nonpremixed CH4/air combustion (HELP)
 
You should have a look at the tutorial related to it, it is explained step by step, further if you have problem, we are here for it :)

Hilda October 12, 2005 09:23

Re: Nonpremixed CH4/air combustion (HELP)
 
I really need your help. I sent you email explaining the case. Thanks zxaar.

Lam October 12, 2005 13:05

Re: Nonpremixed CH4/air combustion (HELP)
 
Why you use prePDF instead of gambit as your pre-processing tool?

Hilda October 12, 2005 16:58

Re: Nonpremixed CH4/air combustion (HELP)
 
Lam, PrePDF is to generate the laminar flamelet library.

eslam October 13, 2005 16:17

Re: Nonpremixed CH4/air combustion (HELP)
 
hi i need to know how measure the flame blow off for my master dgree

thanks

bahramnourani June 13, 2013 05:01

Dear Hilda

I define the excess air of fuel by selecting a suitable mass flow of air at the boundary condition of the Fluent software,but I see that by increasing the excess air of fuel the maximum temperature is increased!??
I expect that the adiabatic flame temperature is dropped down by increasing the excess air of fuel.
Please guide me that how can I define the excess air of fuel at the non premixed combustion model.

Thanks
Bahram

diamondx June 13, 2013 12:46

this thread is 8 yeards old... please start a new thread

sabba February 3, 2014 20:48

Dear all, I would like to know how set the lambda (excess air coefficient for combustion) in FLUENT and the combustion chamber temperatur . Can anybody help me with this? Thanks.
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