EDDY BREAK UP MODEL (COMBUSTION)

August 22, 2000, 12:02

What is the significance of the vriable "MIXF" in the "EDDY BREAK UP MODEL". And what is the difference compare to the variable " FUEL". I thank you for your interest.

August 22, 2000, 12:22

FUEL = the mass fraction of unburned fuel, and MIXF = the "mixture fraction", ie the mass of material originating from fuel, per unit mass of mixture, regardless of whether it is burned or not.

More information can be found in a useful lecture at http://www.cham.co.uk/phoenics/d_pol...s/lec12-22.htm

Regards

Sergei Zhubrin

RAWT · December 31, 2009, 16:50

to Sergei Zhubrin

please I need the mixture fraction relationships in the case of two reaction:

and the mass fraction of unburned fuel, the mass fraction of product and of each species when we have:

fuel +.O2 ____> co +
co+ .o2 -------> co2
if you have yhe description or fortran listing of this section please send it to me

I need very much your help.
....happy new year 2010!

August 22, 2000, 12:02	EDDY BREAK UP MODEL (COMBUSTION)	#1
GACEM hatem Guest Posts: n/a	What is the significance of the vriable "MIXF" in the "EDDY BREAK UP MODEL". And what is the difference compare to the variable " FUEL". I thank you for your interest.

August 22, 2000, 12:22	Re: EDDY BREAK UP MODEL (COMBUSTION)	#2
Sergei Zhubrin Guest Posts: n/a	FUEL = the mass fraction of unburned fuel, and MIXF = the "mixture fraction", ie the mass of material originating from fuel, per unit mass of mixture, regardless of whether it is burned or not. More information can be found in a useful lecture at http://www.cham.co.uk/phoenics/d_pol...s/lec12-22.htm Regards Sergei Zhubrin

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December 31, 2009, 16:50		#3
RAWT New Member tafarel Join Date: Oct 2009 Posts: 5 Rep Power: 17	to Sergei Zhubrin please I need the mixture fraction relationships in the case of two reaction: and the mass fraction of unburned fuel, the mass fraction of product and of each species when we have: fuel +.O2 ____> co + co+ .o2 -------> co2 if you have yhe description or fortran listing of this section please send it to me I need very much your help. ....happy new year 2010!