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

CFD under vibration

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 6, 2008, 14:26
Default CFD under vibration
  #1
Don
Guest
 
Posts: n/a
Hello,

I am trying to solve liquid droplet behavior under vibrating environment with CFX. Liquid droplet is emerging through a pore into a channel. I want to investigate the forced vibration effect on the bubble dynamics.(vibration of the total numerical domain)

I am not sure I this is possible with Ansys multiphysics FSI (Fluid Structure Interaction).

Do you think it is possible with CFX? If so, please let me know the way.

Thanks you for your consideration!
  Reply With Quote

Old   November 6, 2008, 14:38
Default Re: CFD under vibration
  #2
CycLone
Guest
 
Posts: n/a
You could do this in CFX by either imposing an oscillating mesh motion on the boundary or, if the entire domain vibrates, adding an oscillating momentum source (i.e. acceleration) to the entire domain.

-CycLone
  Reply With Quote

Old   August 31, 2013, 22:12
Default
  #3
Member
 
liuzexiang
Join Date: Oct 2012
Location: China
Posts: 64
Rep Power: 4
liuzexiang is on a distinguished road
hi ,i meet this kind of problem,too . In cfx, adding an oscillationg momentum source means adding a subdomain to the simulation. but there is just the energy, there is no momutum source.
liuzexiang is offline   Reply With Quote

Old   September 1, 2013, 05:51
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,945
Rep Power: 85
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
You can make the subdomain cover the entire domain if it acts everywhere. I do not understand your statement about energy.
ghorrocks is offline   Reply With Quote

Old   September 1, 2013, 11:36
Default
  #5
Member
 
liuzexiang
Join Date: Oct 2012
Location: China
Posts: 64
Rep Power: 4
liuzexiang is on a distinguished road
Quote:
Originally Posted by ghorrocks View Post
You can make the subdomain cover the entire domain if it acts everywhere. I do not understand your statement about energy.
the subdomain is motion with the displacement expression. but in subdomain set tap, the source is energy with the unit of Wm^-3
liuzexiang is offline   Reply With Quote

Old   September 1, 2013, 18:35
Default
  #6
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,945
Rep Power: 85
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
You can "reuse" that subdomain to apply source terms if you want.

An energy equation source term can have units Wm^-3, of course. But I still do not understand your question about energy.
ghorrocks 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
CFD Wiki - We Need More Help! Jonas Larsson Main CFD Forum 0 September 26, 2005 08:11
CFD job and salary? Mingyong Main CFD Forum 11 January 2, 2001 07:15
CFD for fans & blower housings David Carroll Main CFD Forum 8 August 24, 2000 17:25
Since Last June John C. Chien Main CFD Forum 3 July 12, 1999 09:38
Which is better to develop in-house CFD code or to buy a available CFD package. Tareq Al-shaalan Main CFD Forum 10 June 12, 1999 23:27


All times are GMT -4. The time now is 17:53.