CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > CFX

Buoyancy model: how to set the reference density?

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

LinkBack Thread Tools Search this Thread Display Modes
Old   June 16, 2015, 12:56
Default Buoyancy model: how to set the reference density?
New Member
Join Date: May 2015
Posts: 8
Rep Power: 9
wissal is on a distinguished road
Hi everybody

I'm a CFX biginner. So i'm defining the boundary conditions for a new Simulation. I chose "buoyant", and entered the Gravity values for the three axes, and now I want to define the buoancy reference density, but i can only enter the reference tempreture. I only have the value of the reference density. How can i Change it??

Thank you
wissal is offline   Reply With Quote

Old   June 17, 2015, 10:14
Senior Member
JuPa's Avatar
Join Date: Jun 2012
Location: Britain
Posts: 361
Rep Power: 13
JuPa is on a distinguished road
You can't change it. Buoyancy is a function of temperature in heat transfer systems.

Set the reference temperature to an rough average of the temperature you expect in your system.
JuPa is offline   Reply With Quote


buoyancy, buoyant flow, cfx, reference -values

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
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 05:21
Water subcooled boiling Attesz CFX 7 January 5, 2013 03:32
OpenFOAM 1.6 ext - Compilation errors - Fedora 17(32bit) toolpost OpenFOAM Installation 15 September 21, 2012 09:38
error message cuteapathy CFX 14 March 20, 2012 06:45
G95 + CGNS Bruno Main CFD Forum 1 January 30, 2007 00:34

All times are GMT -4. The time now is 08:39.