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

How to choose number of non-linear iterations

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 16, 2014, 20:10
Question How to choose number of non-linear iterations
  #1
New Member
 
nollnoll
Join Date: Apr 2012
Posts: 3
Rep Power: 5
nollnoll is on a distinguished road
Hi,

Making some progress with setting up a head wave cases, now trying to incorporate adaptive grid to capture surface in a cell-economical way.

My question is :
Is there a way to calculate or estimate number of non-linear iterations I need to allow for convergence? (or maybe how few I can get away with)

The manual suggests 20 iterations for wave cases, but I see little or no difference to 10 iterations in forces etc. How do I know if I am safe?

The solution need to be able to distinguish between hull candidates, absolute precision is of lesser importance.

Kind regards

Elastic Sparrow
nollnoll is offline   Reply With Quote

Reply

Tags
iterations, non-linear, numeca fine marine

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
Sudden jump in Courant number NJG OpenFOAM Running, Solving & CFD 7 May 15, 2014 13:52
Help for the small implementation in turbulence model shipman OpenFOAM Programming & Development 25 March 19, 2014 11:08
High Courant Number @ icoFoam Artex85 OpenFOAM Running, Solving & CFD 9 January 3, 2012 09:06
Differences between serial and parallel runs carsten OpenFOAM Bugs 11 September 12, 2008 11:16
Unknown error sivakumar OpenFOAM Pre-Processing 9 September 9, 2008 12:53


All times are GMT -4. The time now is 03:29.