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

Natural convection in liquid metal column

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

LinkBack Thread Tools Display Modes
Old   June 1, 2012, 10:36
Default Natural convection in liquid metal column
Join Date: May 2012
Location: Dresden, Germany
Posts: 32
Rep Power: 7
dl6tud is on a distinguished road
I am thinking about how to model the following problem:
I have a cylinder, filled with mercury. The cylinder walls are electrically isolating - from the bottom to the top an electric current is flowing. The bottom is cooled, the side-walls are at room temperature. The current heats the metal to about room temp.+30K and natural convection occurs. The speed of the convection is the thing I would like to know.

-> buoyantBoussinesqPimpleFoam is the right model?
-> can I simulate with 2 different phases, too? (e. g. water over mercury)
-> can I simulate the heat transfer through the wall, or do I have to use a wall with a thickness == 0 at a constant temperature?

Many thanks!
dl6tud is offline   Reply With Quote

Old   June 4, 2012, 04:00
Senior Member
Join Date: Jun 2009
Location: France, grenoble
Posts: 265
Rep Power: 11
olivierG is on a distinguished road

1) yes buoyantBoussinesqPimpleFoam would be the right solver for natural convection, but you need to add source term (current heat): customise the solver or look at explicitSetValue.

2) multiphase not miscible => interFoam, but current "official" solver are isothermal only, so you need to modifiy interFoam (simple if you stay incompressible).

3) you can use both, i.e simulate heat transfert or even try the "shell" model (look here:

hope this help,
olivierG 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
natural convection problem with radiation jorien CFX 0 October 14, 2011 09:26
Natural Convection with heat generation krishnachandranr Main CFD Forum 0 July 28, 2009 04:22
radiation of molton liquid metal in enclosure richard CFX 0 April 8, 2008 15:43
Coupled vs Seg - Natural vs. Forced Convection Alex Siemens 5 December 12, 2007 05:58
free convection heat transfer from a heated horizontal surface through a liquid to a thin cooled fin Kaushik FLUENT 1 May 8, 2000 06:47

All times are GMT -4. The time now is 00:18.