model combustion in a back ward facing step

Mina_Shahi · April 21, 2011, 09:12

Hi

I want to define a source point in CFX to model combustion in a back ward facing step, actualy i want to define a source point for reaction progress and the unit is Kg/s, i have really no idea about this, because the reaction progress 0 shows no acombustion and 1 points to a burnt mixture, so what is this source point in Kg/s????

I would appreciate if some one could help me in this matter

joey2007 · April 22, 2011, 15:18

What do you intend to model? Ignition as a transient process?

Mina_Shahi · April 27, 2011, 05:09

No steady state

First i assume two regions in the chamber one consists of step with higher temperature and the other part with lower, but interface between to parts seemed behaves like a wall. so i want to use source point instead of a part with higher temperature.

April 21, 2011, 09:12	model combustion in a back ward facing step	#1
Mina_Shahi Member Mina Join Date: Apr 2011 Posts: 88 Rep Power: 15	Hi I want to define a source point in CFX to model combustion in a back ward facing step, actualy i want to define a source point for reaction progress and the unit is Kg/s, i have really no idea about this, because the reaction progress 0 shows no acombustion and 1 points to a burnt mixture, so what is this source point in Kg/s???? I would appreciate if some one could help me in this matter

April 22, 2011, 15:18		#2
joey2007 Senior Member Join Date: Mar 2009 Location: Europe Posts: 169 Rep Power: 17	What do you intend to model? Ignition as a transient process? __________________ - - - - - ------------------------------------------------------------------------ Please do not forget: I am not paid for answering your questions. Thousands of issues can cause a division by zero. Please do not capture a thread, with the argument: "I have the same issue ...."

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April 27, 2011, 05:09		#3
Mina_Shahi Member Mina Join Date: Apr 2011 Posts: 88 Rep Power: 15	No steady state First i assume two regions in the chamber one consists of step with higher temperature and the other part with lower, but interface between to parts seemed behaves like a wall. so i want to use source point instead of a part with higher temperature.