CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

What is the reference pressure in the buoyancy equition?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 23, 2013, 14:00
Default What is the reference pressure in the buoyancy equition?
  #1
New Member
 
Join Date: May 2013
Posts: 22
Rep Power: 12
rabbitmelon is on a distinguished road
the solver theory guide says, when the buoyancy is activated, the absolute pressure will be caculated as followed:

pabs=p+pref+rho_ref*g*(r-rref)

with rho_ref the reference density, g, r and rref as vectors.

Is the pref in the equition the reference pressure, which is setted in the basic setting of the domain setting or is it the pressure at buoyancy reference location?
rabbitmelon is offline   Reply With Quote

Old   July 23, 2013, 17:50
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,665
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Yes, pref is the reference pressure of the domain.
ghorrocks 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
Second Derivative Zero - Boundary Condition fu-ki-pa OpenFOAM 11 March 27, 2021 05:28
It would be wonderful if a tool for FoamToTecplot is available luckyluke OpenFOAM Post-Processing 165 November 27, 2012 07:54
compile error about FJMPI chiven OpenFOAM Installation 11 March 31, 2010 07:27
air bubble is disappear increasing time using vof xujjun CFX 9 June 9, 2009 08:59
Two-Phase Buoyant Flow Issue Miguel Baritto CFX 4 August 31, 2006 13:02


All times are GMT -4. The time now is 06:29.