CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Post-Processing

Small speed simpleFoam trouble

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

LinkBack Thread Tools Display Modes
Old   November 17, 2009, 09:00
Default Small speed simpleFoam trouble
New Member
Milos Stanic
Join Date: Mar 2009
Location: Novi Sad, Serbia
Posts: 29
Rep Power: 10
milos is on a distinguished road
Hi everyone!

Ok, I've noticed that when I give a mesh that is relatively large in comparison to the inlet velocity, simulations regularly diverge.

For example, if I take a ship model (scale 1:1), which is 70 [m] long and my inlet speed is 3 [m/s], simpleFoam goes completely nuts.

Notice that Re in that case is still very large, which would mean that RNGkepsilon model should work fine.

Any ideas why this happens and/or advice on what to change in the setup of the simulation?

milos is offline   Reply With Quote


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
Laminar simpleFoam and inviscid simpleFoam herenger OpenFOAM Running, Solving & CFD 7 July 11, 2013 06:27
why did Time step is too small in stiffbs? satum FLUENT 1 December 10, 2012 10:15
Train Speed yeo FLUENT 5 February 14, 2012 09:38
Naca0012 k-e mpirun gives fpe whereas simpleFoam not Pierpaolo OpenFOAM 1 May 8, 2010 03:08
Can OpenFOAM generate flow at the speed of light? Michel_sharp OpenFOAM 6 October 24, 2009 04:09

All times are GMT -4. The time now is 23:51.