CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

multiphase model

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   January 22, 2013, 17:56
Default multiphase model
  #1
New Member
 
Join Date: Jan 2013
Posts: 4
Rep Power: 4
violin is on a distinguished road
Hi friends
I have to model ferrofluid with fluent .
I have a big problem.
I have to investigate the flow behaviour in two cylanders with different dimension , in result of experiment that I have , the flow is static in the first , but in fluent I have to have velocity inlet in mixture model until I can give volume fraction of secondry phase.
in experimental result , in the first , ferrofluid is between two cylander and then outer cylander start to rotate ,
can you help me about this problem . tnx alot
violin is offline   Reply With Quote

Old   January 22, 2013, 23:17
Default
  #2
New Member
 
Wagner Queiroz Barros
Join Date: Jan 2013
Posts: 13
Rep Power: 4
wagnerqb is on a distinguished road
Send a message via Skype™ to wagnerqb
Hello,

I think you have a VOF problem and there are some hints to help you:

1- You have to patch your inicial solution, i.e. you will start your simulation with the ferrofluid between the cylinders;

2- Use the VOF method because you have 2 imiscible fluids (ferrofluid, and air)

I am glad to help you.

att.
WagnerQB
wagnerqb is offline   Reply With Quote

Old   January 23, 2013, 09:04
Default
  #3
Member
 
Yanlong Li
Join Date: Jan 2013
Location: BeiJing
Posts: 47
Rep Power: 4
Yanlong Li is on a distinguished road
Is your major metallurgy? Do you want to simulate the tapping? I will simulate this process next month. And I think you can seperate it to two parts:
first, just simulate the tapping from one ladle and store the case and data (the volume fraction).
second, use the advanced file as the velocity data to simulate the next process.
Yanlong Li is offline   Reply With Quote

Old   January 24, 2013, 15:36
Thumbs up
  #4
New Member
 
Join Date: Jan 2013
Posts: 4
Rep Power: 4
violin is on a distinguished road
Quote:
Originally Posted by violin View Post
Hi friends
I have to model ferrofluid with fluent .
I have a big problem.
I have to investigate the flow behaviour in two cylanders with different dimension , in result of experiment that I have , the flow is static in the first , but in fluent I have to have velocity inlet in mixture model until I can give volume fraction of secondry phase.
in experimental result , in the first , ferrofluid is between two cylander and then outer cylander start to rotate ,
can you help me about this problem . tnx alot
my friend
I try VOF models , thank you for helping me .
violin is offline   Reply With Quote

Old   January 26, 2013, 05:28
Default
  #5
New Member
 
Join Date: Jan 2013
Posts: 4
Rep Power: 4
violin is on a distinguished road
Quote:
Originally Posted by Yanlong Li View Post
Is your major metallurgy? Do you want to simulate the tapping? I will simulate this process next month. And I think you can seperate it to two parts:
first, just simulate the tapping from one ladle and store the case and data (the volume fraction).
second, use the advanced file as the velocity data to simulate the next process.
hi friend
my based fluid is paraffin and my nanoparticle is fe2O3 .
what is tapping ?
can you explain more ? . tanx alot .
violin is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
Problems bout CFD model of biomass gasification, Downdraft gasifier wanglong FLUENT 2 November 26, 2009 00:27
mass balance problem in multiphase model mdsanij1 FLUENT 0 July 28, 2009 16:01
Multiphase model and species transport Reginaldo Cotto FLUENT 0 August 29, 2006 20:36
multiphase model & separation naser FLUENT 5 June 9, 2006 06:12


All times are GMT -4. The time now is 18:16.