CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Unsteady flow: NITA or Frozen flux?

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

LinkBack Thread Tools Display Modes
Old   April 15, 2010, 06:45
Default Unsteady flow: NITA or Frozen flux?
New Member
Join Date: Apr 2010
Posts: 5
Rep Power: 9
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 is offline   Reply With Quote

Old   August 23, 2011, 06:06
Default Nita scheme
Join Date: Jul 2011
Posts: 43
Rep Power: 8
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?
New Member
Join Date: Nov 2015
Location: Bangalore
Posts: 4
Rep Power: 4
anand.jittanakatti is on a distinguished road
Hi, Refer the below link, you may get the better understanding on the NITA or Frozen flux.
anand.jittanakatti is offline   Reply With Quote


frozen flux formulation, nita, transient

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
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 04:40
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 29, 2002 23:08
Initial Conditions in unsteady turbulent flow Z. Zeng Main CFD Forum 5 April 28, 1999 17:38

All times are GMT -4. The time now is 05:10.