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

Unsteady flow: NITA or Frozen flux?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 15, 2010, 07:45
Default Unsteady flow: NITA or Frozen flux?
  #1
New Member
 
Join Date: Apr 2010
Posts: 5
Rep Power: 16
Sarah is on a distinguished road
Dear all,

I am a new user of Fluent and even newer in transient simulations. I see there are two options to increase the iteration speed:
- non-iterative time advancing
- frozen flux formulation

I find only limited information about these option in the Fluent manual, and would appreciate it if someone can give me some information (or references to) about in which case which option is advisable.

I am modelling mixed convection flow in a room, with the boussinesq approximation.

Kind regards,

Sarah
Sarah is offline   Reply With Quote

Old   August 23, 2011, 07:06
Default Nita scheme
  #2
Member
 
Nirav
Join Date: Jul 2011
Posts: 43
Rep Power: 14
niravtm007 is on a distinguished road
Send a message via Skype™ to niravtm007
hello can any one please help how to use non iterative time advancement scheme in fluent . ? i am using a fluent with a cubical geometry intially half filled with water and other half filled with air ( i did the patching ) but not sure how to use NITA scheme ???? please send some suggestions
niravtm007 is offline   Reply With Quote

Old   December 3, 2015, 04:27
Default Unsteady flow: NITA or Frozen flux?
  #3
New Member
 
Jittanakatti
Join Date: Nov 2015
Location: Bangalore
Posts: 4
Rep Power: 10
anand.jittanakatti is on a distinguished road
Hi, Refer the below link, you may get the better understanding on the NITA or Frozen flux.

http://aerojet.engr.ucdavis.edu/flue...g/node1000.htm
anand.jittanakatti is offline   Reply With Quote

Reply

Tags
frozen flux formulation, nita, transient

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Unsteady Flow in FLUENT Vidya Raja FLUENT 0 November 1, 2005 18:54
output data for unsteady flow case wieke Main CFD Forum 0 September 30, 2003 05:40
Replace periodic by inlet-outlet pair lego CFX 3 November 5, 2002 21:09
Unsteady Boundary Layer Flow Wen Long Main CFD Forum 0 July 30, 2002 00:08
Initial Conditions in unsteady turbulent flow Z. Zeng Main CFD Forum 5 April 28, 1999 18:38


All times are GMT -4. The time now is 09:51.