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

Virtual mass force

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 9, 2006, 22:10
Default Virtual mass force
  #1
Glen
Guest
 
Posts: n/a
Hi,

I am trying to include virtual mass force as an extra source term in my code. The virtual mass force is given by the phase material time derivative or the substantial derivative. In this derivative there is a transient term to be discretised, but my code is a steady state Eulerian-eulerian two fluid model. So how do I come around the problem.

Thanks in advance,

Glen.
  Reply With Quote

Old   August 11, 2006, 16:41
Default Re: Virtual mass force
  #2
sveta
Guest
 
Posts: n/a
Why do you think you need virtual mass force? Do you have interfacial pressure term in your code? When you build the code why choose steady state? What kind of processes are you going to study?
  Reply With Quote

Old   August 12, 2006, 22:25
Default Re: Virtual mass force
  #3
Glen
Guest
 
Posts: n/a
Thanks for replying,

Why do you think you need virtual mass force? I am trying to simulate bubbly flows, so (i think) it is a necessity to include the virtual mass force.

Do you have interfacial pressure term in your code? No. (Not yet)

When you build the code why choose steady state? Code I have(inhereted)is steady state.

What kind of processes are you going to study? Trying to see the process of small bubbles in boundary layer.

Thanks in advance, Glen.
  Reply With Quote

Old   September 2, 2006, 11:20
Default Re: Virtual mass force
  #4
Abeer I Alwared
Guest
 
Posts: n/a
I want to know the virtual mass force for three & four spheres rising in liquid due to acceleration & these spheres formed in traingle , square shape respectively with my respect
  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
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Force can not converge colopolo CFX 13 October 4, 2011 23:03
Virtual Mass Force weiz FLUENT 0 April 29, 2010 08:00
Wet or dry mass for calculating virtual mass of a towed object? kateedwards11 Main CFD Forum 0 June 16, 2009 10:56
Virtual mass force? bk CD-adapco 1 June 5, 2007 05:45


All times are GMT -4. The time now is 04:43.