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

limit holdup value

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 30, 2008, 04:21
Default limit holdup value
  #1
mohini
Guest
 
Posts: n/a
Hi all, I am solving gas-liquid system using Eulerian-Eulerian Approach. The gas volume fraction in some cells exceeds the maximum packing limit of 0.63. By selecting the maximum packing limit in Fluid details>> Dispersed Fluid>> Morphology ; did not make any difference. The volume fraction of 0.9 was achived in most of the cells.

Query: How can i limit the volume fraction value to 0.63? Do i need to write routine.... and how to connect it with the solver?

your help and time will be appriciated the most.

Thanks

  Reply With Quote

Old   July 30, 2008, 09:45
Default Re: limit holdup value
  #2
Sally
Guest
 
Posts: n/a
Mohini, tell us something about the physics of your problem. Do you expect that in the physical problem, you will have less than 0.63 volume fraction, and is this why you're trying to limit it to that value, or is there another reason for limiting it ? Also, what turbulence model are you using ?
  Reply With Quote

Old   July 31, 2008, 04:58
Default Re: limit holdup value
  #3
mohini
Guest
 
Posts: n/a
Its a gas-liquid system. Gas-dispersed phase. I am using hte standard k-e model. I am solving the inhomogeneous system for fluids (ie Eulerian-Eulerian approache for two phase system).
  Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
how to increase "Newton Pressure Iteration Limit" kus CFX 9 April 21, 2013 02:54
Limit error Chander CFX 1 October 9, 2011 18:39
How to limit a variable ash OpenFOAM Running, Solving & CFD 1 June 26, 2008 21:32
Packing limit management in the Eulerian model ap FLUENT 2 September 16, 2005 18:46
mesh adaption memory limit Dave FLUENT 1 March 27, 2004 10:02


All times are GMT -4. The time now is 09:34.