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

simpleFoam, Solving Pressure problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 13, 2013, 21:40
Angry simpleFoam, Solving Pressure problem
  #1
New Member
 
James
Join Date: Oct 2013
Posts: 1
Rep Power: 0
jamescraigie29 is on a distinguished road
Hi All,

Im currently running a case using simpleFoam to analyse the flow over a helicopter fuselage.

There seems to be an issue when solving for pressure.
For example the initial residual =1 but the final residual also =1. Clearly there is something wrong and it takes a VERY long time to solve.

I have mainly used only simpleFoam and havent had this kind of issue before. Does anyone know what could be causing this? Could be something very simple?

Any advice would be appreciated.

Regards,

James.
jamescraigie29 is offline   Reply With Quote

Old   October 14, 2013, 04:05
Default
  #2
Member
 
Artem Shaklein
Join Date: Feb 2010
Location: Russia, Izhevsk
Posts: 32
Rep Power: 6
ARTem is on a distinguished road
Hello, James.
Can you give more details about your case (i.e. boundary conditions)?
ARTem is offline   Reply With Quote

Old   October 15, 2013, 07:42
Default ParaView window
  #3
Senior Member
 
ok
Join Date: Oct 2013
Posts: 201
Rep Power: 3
Maimouna is on a distinguished road
Dear,

I have one question about paraView window 3.12.0. It is working properly, but the Apply icon is not activated?
Whats the problem?
What shall I do to activate it?

Best regards
Maimouna
Maimouna is offline   Reply With Quote

Old   October 15, 2013, 07:55
Default
  #4
Senior Member
 
RodriguezFatz's Avatar
 
Philipp
Join Date: Jun 2011
Location: Germany
Posts: 876
Rep Power: 14
RodriguezFatz will become famous soon enough
James, that sounds like your pressure equation doesn't converge and takes the maximum number of iterations ("maxIter" in fvSolution) to try ("VERY long time to solve."). Did you change something in your fvSolution file?
__________________
The skeleton ran out of shampoo in the shower.
RodriguezFatz is offline   Reply With Quote

Reply

Tags
openfoam, pressure, simplefoam, solve

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
SimpleFoam k and epsilon bounded nedved OpenFOAM Running, Solving & CFD 13 November 4, 2013 14:13
dynamic Mesh is faster than MRF???? sharonyue OpenFOAM Running, Solving & CFD 14 August 26, 2013 07:47
pisoFoam - unstable pressure residual Industrial_CFD OpenFOAM Running, Solving & CFD 21 February 24, 2013 15:39
Upgraded from Karmic Koala 9.10 to Lucid Lynx10.04.3 bookie56 OpenFOAM Installation 8 August 13, 2011 04:03
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 02:58


All times are GMT -4. The time now is 19:30.