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

TwoPhaseEulerFoam wall effects and initial pressure condition

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 29, 2007, 17:44
Default Hi, I have two questions ab
  #1
New Member
 
Alex Londono
Join Date: Mar 2009
Location: Medellin, Antioquia, Colombia
Posts: 9
Rep Power: 17
alondono is on a distinguished road
Hi,

I have two questions about twoPhaseEulerFoam, quite easy!!

The initial condition for pressure states:

internalField uniform 0;

referenceLevel 0;

boundaryField
{
wall
{
type zeroGradient;
}
Outlet
{
type fixedValue;
value uniform 0;
}
Inlet
{
type zeroGradient;
}
frontAndBackPlanes
{
type empty;
}
}

That means a value of 0 Pa or it's just relative pressure?

And the other one, have anyone include FrontandBack wall effects? (it is considerable for 2D experimental setup), and how could be possible to include it?

Thanks in advance!!
alondono is offline   Reply With Quote

Old   April 29, 2007, 18:23
Default The pressure is relative. T
  #2
Senior Member
 
Alberto Passalacqua
Join Date: Mar 2009
Location: Ames, Iowa, United States
Posts: 1,912
Rep Power: 36
alberto will become famous soon enoughalberto will become famous soon enough
The pressure is relative.

To include the wall effects of a "2D" experiment requires a 3D simulation, where the whole box is represented.

Regards,
Alberto
__________________
Alberto Passalacqua

GeekoCFD - A free distribution based on openSUSE 64 bit with CFD tools, including OpenFOAM. Available as in both physical and virtual formats (current status: http://albertopassalacqua.com/?p=1541)
OpenQBMM - An open-source implementation of quadrature-based moment methods.

To obtain more accurate answers, please specify the version of OpenFOAM you are using.
alberto is offline   Reply With Quote

Reply


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
Enhanced Wall Treatment - Thermal Effects Brian Tang FLUENT 1 November 6, 2015 00:59
TwoPhaseEulerFoam and InletOutlet boundary condition hemph OpenFOAM Running, Solving & CFD 10 January 29, 2007 10:47
Initial Condition Tang Kuei FLUENT 0 May 17, 2006 20:54
pressure boundary condition on the wall fluideniro Main CFD Forum 12 December 24, 2003 02:10
Effects of gravity in pipe - pressure distribution Anthony Wachs FLUENT 2 July 25, 2001 08:07


All times are GMT -4. The time now is 04:55.