CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   Nonpremixed CH4/air combustion (HELP) (

Hilda October 12, 2005 07:41

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 07:58

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 08:23

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

Lam October 12, 2005 12:05

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

Hilda October 12, 2005 15:58

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

eslam October 13, 2005 15:17

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


bahramnourani June 13, 2013 04:01

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.


diamondx June 13, 2013 11:46

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.

All times are GMT -4. The time now is 13:14.