CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Scaling leads to FPE

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 16, 2013, 02:18
Default Scaling leads to FPE
  #1
Senior Member
 
Onno
Join Date: Jan 2012
Location: Germany
Posts: 120
Rep Power: 15
Kaskade is on a distinguished road
Hello everyone,

I've run into a strange problem and I'm hoping someone can help me out. I want to run a simulation using a mesh generated in Gridgen. For the conversion I use fluentMeshToFoam -scale 0.001 since I want to convert it from mm to m. When I start the simulation I get a SIG_FPE as soon as the pressure is calculated for the first time. Now the fun part: It only happens, when I scale the mesh, without scaling it runs fine at least for the first few iterations.

checkMesh output:
Checking geometry...
Overall domain bounding box (-0.85 -0.85 -0.327122) (0.85 0.85 1.3724)
Mesh (non-empty, non-wedge) directions (1 1 1)
Mesh (non-empty) directions (1 1 1)
Boundary openness (-4.51114e-18 -1.79373e-17 1.42078e-15) OK.
Max cell openness = 3.03263e-16 OK.
Max aspect ratio = 7.79845 OK.
Minimum face area = 5.55095e-07. Maximum face area = 0.00120582. Face area magnitudes OK.
Min volume = 2.75958e-10. Max volume = 1.47751e-05. Total volume = 3.55773. Cell volumes OK.
Mesh non-orthogonality Max: 62.1092 average: 19.8124
Non-orthogonality check OK.
Face pyramids OK.
Max skewness = 0.876396 OK.
Coupled point location match (average 0) OK.

Any ideas? My next step would be to set mm as unit for length in the controlDict and see what happens.

Greetings

Kaskade
Kaskade is offline   Reply With Quote

Reply

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
ansys12: turning off correction scaling noa_emric FLUENT 7 March 8, 2015 21:17
Global scaling - grid independency testing Jenny CFX 6 December 10, 2013 03:52
Scaling omega in SST turbulence model TedBrogan Main CFD Forum 0 January 23, 2013 00:00
Scaling volume fraction in Multiphase flows CFDtoy Main CFD Forum 1 November 5, 2008 07:26
Scaling in Gambit. Jack Keays FLUENT 3 March 15, 2001 05:05


All times are GMT -4. The time now is 22:02.