CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

Incompressible, miscible mixing of two fluid stream OpenFOAM

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 22, 2012, 05:42
Default Incompressible, miscible mixing of two fluid stream OpenFOAM
  #1
New Member
 
N Agrawal
Join Date: Jun 2012
Posts: 4
Rep Power: 5
Nishchal is on a distinguished road
Hi,

I am very new to openFOAM and this forum. To get feel of OpenFOAM i decided to setup a test case involving mixing of two fluid stream (compressible and miscible).

It is not a two-phase situation i am dealing with, it is one phase (water) at two different temperatures mixing in a T-junction.

Can anyone suggest me which solver to use?
Nishchal is offline   Reply With Quote

Old   June 23, 2012, 15:49
Default
  #2
Super Moderator
 
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 8,312
Blog Entries: 34
Rep Power: 84
wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Greetings Nishchal,

I'm no expert on this subject, so until someone more experienced responds, here's what I know...

If you check the folder "heatTransfer" in the OpenFOAM "tutorials" folder, you'll find these solver tutorials:
Quote:
Code:
buoyantBoussinesqPimpleFoam
buoyantBoussinesqSimpleFoam
buoyantPimpleFoam
buoyantSimpleFoam
buoyantSimpleRadiationFoam
chtMultiRegionFoam
chtMultiRegionSimpleFoam
"Simple" ones are for stationary simulations; "Pimple" ones are for transient simulations; "chtMultiRegion" ones are for multiple mesh domains with different fluids/solids.

Best regards,
Bruno
wyldckat is offline   Reply With Quote

Old   July 31, 2013, 01:18
Default
  #3
Member
 
Vishal
Join Date: Jul 2013
Posts: 73
Rep Power: 4
inf.vish is on a distinguished road
Hi Nishchal,
Did you find out which solver to use and what boundary conditions to use?
I am also looking at the same problem and have been stuck on it for three days now. I am not able to find this simple example anywhere.
inf.vish is offline   Reply With Quote

Old   July 31, 2013, 09:52
Default multiphase flow solver would be the option in my guess
  #4
Member
 
Anil Kunwar
Join Date: Jun 2013
Posts: 52
Rep Power: 3
Annier is an unknown quantity at this point
since the pure substance is having different thermodynamic states before mixing, it may be somehow relevant to treat them as two different fluids? if the compressibility can be ignored, twoLiquidMixingFoam is there as a standard solver in OpenFoam. otherwise, you need to modify this solver by adding the codes related to the compressibility of the fluids. still you can search for other relevant solvers which may best fit your physical model.
Annier is offline   Reply With Quote

Old   July 31, 2013, 09:54
Default
  #5
Member
 
Vishal
Join Date: Jul 2013
Posts: 73
Rep Power: 4
inf.vish is on a distinguished road
i used buoyantBoussinesqSimpleFoam. But i will try with twoLiquidMixingFoam also. Thanks
inf.vish is offline   Reply With Quote

Reply

Tags
incompressible fluid, miscible, mixing fluid, openfoam 2.1

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
Newbie: advantages/disadvantages of "penalty formulation" incompressible fluid flow bzz77 Main CFD Forum 2 November 1, 2011 04:32
Placing second fluid in OpenFOAM. vivek070176 OpenFOAM 5 June 30, 2011 18:33
mixing of non reacting miscible fluids Himanshu Arora FLUENT 0 June 13, 2005 04:17
internal steady incompressible inviscid fluid flow Nina Shokina Main CFD Forum 0 October 21, 2003 06:11
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11


All times are GMT -4. The time now is 08:10.