DPM component mole fraction

Jaskull · October 27, 2011, 14:31

Hi
I'm preparing a model of multicomponent evaporation from mixture droplets. But to describe two period of drying I need to read mole or mass fraction of evaporating species from the droplet. Have anybody idea how to do that. Is there any function, macro or code? I will be very grateful for help.

Mac

Laci · October 30, 2011, 15:20

Maybe I didn't get the point, but you can create two different injection. The mass flow rates of both species can be set easily on the GUI.
Did this help to you?

Jaskull · October 31, 2011, 05:45

Not really what I mean. I'm developing a spray-drying simulations. So far I succeeded with the help of "user guide" to run the macro DPM_HEAT_MASS. But now I want to write new function, which is depend on moisture content. So I need to read mass or mole fraction of evaporating species from multicomponent droplet.

classic1573 · April 26, 2014, 23:28

Quote:

Originally Posted by Jaskull

Not really what I mean. I'm developing a spray-drying simulations. So far I succeeded with the help of "user guide" to run the macro DPM_HEAT_MASS. But now I want to write new function, which is depend on moisture content. So I need to read mass or mole fraction of evaporating species from multicomponent droplet.

HI,
Have you solved this problem？ I also want to know the answer. Can you give me some help？ thanks a lot！

Jaskull · April 28, 2014, 04:02

Yes I solved this problem long time ago. You need to use TP_COMPONENT_I(p,i) function where p is particle pointer and i its species index. If You want more information write to me on priv.

classic1573 · May 3, 2014, 00:05

Quote:

Originally Posted by Jaskull

Yes I solved this problem long time ago. You need to use TP_COMPONENT_I(p,i) function where p is particle pointer and i its species index. If You want more information write to me on priv.

Hi,
Thank you vary much for your reply! I just found the TP_COMPONENT_I(p,i) on the page 2-194 of the fluent 6.3 udf manual.

October 27, 2011, 14:31	DPM component mole fraction	#1
Jaskull New Member Maciej Join Date: Jul 2011 Location: Poland Posts: 16 Rep Power: 14	Hi I'm preparing a model of multicomponent evaporation from mixture droplets. But to describe two period of drying I need to read mole or mass fraction of evaporating species from the droplet. Have anybody idea how to do that. Is there any function, macro or code? I will be very grateful for help. Mac

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October 30, 2011, 15:20		#2
Laci Member anonym Join Date: Mar 2009 Posts: 65 Rep Power: 17	Maybe I didn't get the point, but you can create two different injection. The mass flow rates of both species can be set easily on the GUI. Did this help to you?

October 31, 2011, 05:45		#3
Jaskull New Member Maciej Join Date: Jul 2011 Location: Poland Posts: 16 Rep Power: 14	Not really what I mean. I'm developing a spray-drying simulations. So far I succeeded with the help of "user guide" to run the macro DPM_HEAT_MASS. But now I want to write new function, which is depend on moisture content. So I need to read mass or mole fraction of evaporating species from multicomponent droplet.

April 28, 2014, 04:02		#5
Jaskull New Member Maciej Join Date: Jul 2011 Location: Poland Posts: 16 Rep Power: 14	Yes I solved this problem long time ago. You need to use TP_COMPONENT_I(p,i) function where p is particle pointer and i its species index. If You want more information write to me on priv.