Multiphase Combustion in CFX

Marta · April 6, 2011, 11:29

Hi All!
I need to simulate a two-phase combustion process using CFX.
I already have experience in combustion simulations, but only with two gases.
I do not know exactly which models need to be activated and used if a liquid is injected inside the combustion chamber, then is heated up, becomes a vapor and finally reacts with the gas already present inside the combustion chamber.

Thanks a lot for your help.

Let me know if you need any further clarifications about my application.

Marta

joey2007 · April 6, 2011, 16:43

Never did that. Guess you have to model the injected full as lagrangian particles. Guess you should model evaporation, which produces the gas phase of the fuel. The rest is the same procedure as before. This approach should be possible for EDM or finite rate. (Also for combination, however I never recommend to use that).
For flamelet it is a challenge. Contact the service for this.

April 6, 2011, 11:29	Multiphase Combustion in CFX	#1
Marta Member Marta Lazzarin Join Date: Jun 2009 Location: Italy Posts: 71 Rep Power: 17	Hi All! I need to simulate a two-phase combustion process using CFX. I already have experience in combustion simulations, but only with two gases. I do not know exactly which models need to be activated and used if a liquid is injected inside the combustion chamber, then is heated up, becomes a vapor and finally reacts with the gas already present inside the combustion chamber. Thanks a lot for your help. Let me know if you need any further clarifications about my application. Marta

April 6, 2011, 16:43		#2
joey2007 Senior Member Join Date: Mar 2009 Location: Europe Posts: 169 Rep Power: 17	Never did that. Guess you have to model the injected full as lagrangian particles. Guess you should model evaporation, which produces the gas phase of the fuel. The rest is the same procedure as before. This approach should be possible for EDM or finite rate. (Also for combination, however I never recommend to use that). For flamelet it is a challenge. Contact the service for this. __________________ - - - - - ------------------------------------------------------------------------ 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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