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

Only one Domain or Multi-Domain

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 11, 2006, 09:59
Default Only one Domain or Multi-Domain
  #1
Camilo Costa
Guest
 
Posts: n/a
I study one simple cavity (2D: in axis z have one lelement) that have in your left side eletronic circuits whith diferents geometrics and diferents heat flux generation(5W, 20W, 2000W, etc.). In the right side have a wall that have temperature constant. The top and botton are isolated. My Ra number is 1,4E13 because a greater heat generation, and because this i have a turbulents recircutaions.

My mesh is total hexagonal that contais 320000 elements and i simulate this in a cluster whit have four pcs that have a processor pentioun 4 3000 and 1 Gb of memory ram.

I can modelate this in only on domain that contains all circuits and walls. But my question is? If divide my domain in 4 and put interfaces fluid-fluid for this 4 domains my simulation will go more faster?
  Reply With Quote

Old   May 12, 2006, 01:15
Default Re: Only one Domain or Multi-Domain
  #2
Sachin Shendge
Guest
 
Posts: n/a
Hi

If you want to use tetramesh for some regions and hexamesh for some regions for better accuracy, it is worth using different domains. Otherwise single domain is sufficient. Using fluid-fluid interfaces will unnecessarily increase cpu time and also flow through interface will be somewhat inaccurate as compared to single domain.

Sachin

  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
CFX domain comparison Kiat110616 CFX 4 April 3, 2011 22:43
Domain Imbalance HMR CFX 3 March 6, 2011 21:10
Error Message after switching to multi domain physics chili023 CFX 3 June 5, 2010 05:28
Multi flow in two different domain arunss CFX 3 May 11, 2010 16:06
multi domain heat transfer prob mohammed zubair CFX 1 June 27, 2006 09:30


All times are GMT -4. The time now is 08:41.