CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Running, Solving & CFD

Gravitational Acceleration-Particle Force

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

LinkBack Thread Tools Display Modes
Old   January 31, 2014, 13:04
Default Gravitational Acceleration-Particle Force
Join Date: Oct 2012
Posts: 84
Rep Power: 6
mayank.dce2k7 is on a distinguished road

I was running a lagarangian particle case using 'icoUncoupledKinematicParcelFoam'. I observed that no matter what dimension you give to 'g' in dictionary the solver works correctly.

My another question is: Does units matter when you specify force expression for value.Su(), like the one below:

value.Su() = mass*g_*(1.0 - p.rhoc()/p.rho());
I checked by changing the code to:

value.Su() = mass*g_*p.rhoc());
It still works although the units are inconsistent i.e not equal to that of force.

mayank.dce2k7 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
ActuatorDiskExplicitForce in OF2.1. Help be_inspired OpenFOAM Programming & Development 8 July 3, 2014 10:54
injection problem Mark New FLUENT 0 August 4, 2013 01:30
Force can not converge colopolo CFX 13 October 4, 2011 22:03
DPM UDF particle position using the macro P_POS(p)[i] dm2747 FLUENT 0 April 17, 2009 01:29
gravitational force for free surface flow Jongtae Kim Main CFD Forum 1 July 2, 2000 11:57

All times are GMT -4. The time now is 09:24.