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

3 fluids in fluent

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 13, 2014, 23:56
Default 3 fluids in fluent
  #1
Member
 
niru
Join Date: Apr 2012
Posts: 55
Rep Power: 6
Niru is on a distinguished road
I have three fluids Liquid nitrogen, water and air in my 2D simulation.
I use the VOF model with implicit body formulation. This is similar to dam break simulation tutorial in fluent. There are 4 BC defined. Top pressure outlet, other as wall with no slip. each region is patched. Air is set as primary phase and Liquid nitrogen and water as secondary phase with volume fraction defined as 1 for each. When I run the simulation, the liquid nitrogen reservoir does not break. I am not able to find the reason. Any ideas as to why the dam doesnt break?
Attached Images
File Type: jpg geometry.jpg (19.1 KB, 22 views)
Niru is offline   Reply With Quote

Old   April 22, 2014, 03:41
Default
  #2
Member
 
amine
Join Date: Jan 2014
Location: FRANCE
Posts: 73
Rep Power: 4
aminem is on a distinguished road
Hi
Don't define three different region on DesignModeler
The use of patch are sufficient
aminem is offline   Reply With Quote

Old   April 23, 2014, 10:20
Default
  #3
New Member
 
Subodh
Join Date: Sep 2013
Location: Canada
Posts: 18
Rep Power: 5
Subodh21 is on a distinguished road
While using VOF model,as you Initialize your solution ,you can use adapt region ,to define your 3 fluids region and patch it directly in fluent, you don't have to do it in designmodeler
good luck
Subodh21 is offline   Reply With Quote

Old   May 9, 2014, 11:53
Default
  #4
Member
 
Mustafa
Join Date: May 2013
Posts: 50
Rep Power: 5
Mohawk is on a distinguished road
my advice is to use eulerian it's more accurate for three phases
Mohawk is offline   Reply With Quote

Reply

Tags
fluent, multifluid, vof

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
Using non-Newtonian fluids in Fluent Irene Fyrippi FLUENT 11 September 28, 2015 14:28
Interesting problem: Parallel Processor VOF Fluent + Dynamic Mesh + System Coupling spaceprop FLUENT 5 September 2, 2014 09:43
Two questions on Fluent UDF Steven Fluent UDF and Scheme Programming 4 September 20, 2013 16:30
Error in reading Fluent 13 case file in fluent 12 apurv FLUENT 2 July 12, 2013 07:46
Fluent 6.3 32bit vs Fluent 12.0 64bit ibex7 FLUENT 7 April 18, 2011 02:44


All times are GMT -4. The time now is 10:37.