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how valid are these assumptions to combustor modelling analysis?

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Old   April 3, 2015, 14:42
Default how valid are these assumptions to combustor modelling analysis?
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Hey people!
We are modelling the flow in an annular combustion chamber for a miniature gas turbine.
Being a 10 day (although rigorously studying) newbie to icem I have realised there are some assumptions i must make
1 spark plug is a continous heat souurce rather than time varying
ALSO if not please suggest any alternative which can be steady state.
Like how to model a spark plug.
2 It is technically multiphase flow because fuel entering is atomised
But i want to assume both the incoming air and fuel vapor as gaseous and thus single phase.
The motive then is to calculate velocity at exit.
The time for this project is not much which is why these simplyfying assumptions i felt are needed.
Please suggest any easier alternaties if you feel these assumptions are invalid.
Any cool papers will be appreciated.
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