Two phase flow of air and water with two inlet

amin.shuvo · July 27, 2015, 00:28

I am Trying to simulate the wellbore model in Ansys Fluent.
It is a two phase model with water and air.
The ultimate result could be a slug flow
Which model and what settings should I use in Fluent to simulate this model?
Please help

amin.shuvo · August 12, 2015, 12:27

Is there anyone who can help me?

Steffen595 · August 13, 2015, 01:16

multiphase is the word?
set up one multiphase domain. One inlet is water only, the other is the mixture. Then outlet as mass flow.
Guess you need to apply buoyancy as well.
so there is your 2 words: multiphase and buoyancy, lots of stuff in the web with and without pictures.

Havinh · August 17, 2015, 01:22

You have to enable multi phase in model
add water in material (default of material is air so after that you got 2 material)
change the material in phase 1 to air and phase 2 to water in Phase
Set the inlet 1 and inlet 2 with the phase you chose
I don't know exactly how to setup outlet but mass flow is the good advise so try it, why not

amin.shuvo · August 17, 2015, 10:51

Thanks everyone, I am trying the suggestions.

Besides I will appreciate if people still continue to comment. I will post the results once i obtain it.

Steffen595 · August 18, 2015, 05:49

try massflow both inlets and outlets.
The pressure will be ok then. I got weird flows otherwise, if I define mass in and 0 pressure out, I get very different mass flows at the outlets.

August 17, 2015, 01:22		#4
Havinh New Member Vinh Ha Tien Join Date: Feb 2014 Posts: 5 Rep Power: 12	You have to enable multi phase in model add water in material (default of material is air so after that you got 2 material) change the material in phase 1 to air and phase 2 to water in Phase Set the inlet 1 and inlet 2 with the phase you chose I don't know exactly how to setup outlet but mass flow is the good advise so try it, why not rajann_786 likes this.

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August 12, 2015, 12:27		#2
amin.shuvo New Member Amin Join Date: Jul 2015 Posts: 3 Rep Power: 10	Is there anyone who can help me?

August 13, 2015, 01:16		#3
Steffen595 Senior Member Join Date: May 2012 Location: Melbourne Posts: 161 Rep Power: 13	multiphase is the word? set up one multiphase domain. One inlet is water only, the other is the mixture. Then outlet as mass flow. Guess you need to apply buoyancy as well. so there is your 2 words: multiphase and buoyancy, lots of stuff in the web with and without pictures.

August 17, 2015, 10:51		#5
amin.shuvo New Member Amin Join Date: Jul 2015 Posts: 3 Rep Power: 10	Thanks everyone, I am trying the suggestions. Besides I will appreciate if people still continue to comment. I will post the results once i obtain it.

August 18, 2015, 05:49		#6
Steffen595 Senior Member Join Date: May 2012 Location: Melbourne Posts: 161 Rep Power: 13	try massflow both inlets and outlets. The pressure will be ok then. I got weird flows otherwise, if I define mass in and 0 pressure out, I get very different mass flows at the outlets.