Flow of co2 (gas) into air (gas)

logme · February 4, 2015, 08:22

I'm performing a 2d simulation of a flow of co2 going out of a nozzle into the air.

I'm not what is the best way to simulate this. Any advice?

alanzago · February 5, 2015, 08:17

What do you want to analyze?
I don´t know how is the model that you want, but I think you can use steaty-state and a multiphase model

CeesH · February 5, 2015, 12:20

You don't need a multiphase model for this, because the 2 components you're looking at can mix. What you need is a species transport model. Enable species transport, select CO2 and air as your fluids, use a velocity boundary condition with the right mass fraction of CO2 for your nozzle (and of course, make sure you have an outlet somewhere), and go for it.

dream23 · February 6, 2015, 04:39

hello..
i am new in fluent, i want to simulate nozzle too..
what kind of boundary and model that i should choose..?

dream23 · February 6, 2015, 04:54

here is my case :
http://4.bp.blogspot.com/-Bz7dJiUTJs...1600/model.jpg

what d you think about my model? is that correct?

February 4, 2015, 08:22	Flow of co2 (gas) into air (gas)	#1
logme New Member Join Date: Dec 2014 Posts: 4 Rep Power: 11	I'm performing a 2d simulation of a flow of co2 going out of a nozzle into the air. I'm not what is the best way to simulate this. Any advice?

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February 5, 2015, 08:17		#2
alanzago New Member Alan Zago de Souza Join Date: Oct 2014 Location: Florianópolis - Brazil Posts: 5 Rep Power: 12	What do you want to analyze? I don´t know how is the model that you want, but I think you can use steaty-state and a multiphase model

February 5, 2015, 12:20		#3
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	You don't need a multiphase model for this, because the 2 components you're looking at can mix. What you need is a species transport model. Enable species transport, select CO2 and air as your fluids, use a velocity boundary condition with the right mass fraction of CO2 for your nozzle (and of course, make sure you have an outlet somewhere), and go for it.

February 6, 2015, 04:39		#4
dream23 New Member Join Date: Sep 2014 Posts: 3 Rep Power: 12	hello.. i am new in fluent, i want to simulate nozzle too.. what kind of boundary and model that i should choose..?

February 6, 2015, 04:54		#5
dream23 New Member Join Date: Sep 2014 Posts: 3 Rep Power: 12	here is my case : http://4.bp.blogspot.com/-Bz7dJiUTJs...1600/model.jpg what d you think about my model? is that correct?