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

OpenFOAM Heat Insulation Boundary Condition for Heat Conduction in Solids

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 17, 2016, 11:05
Default OpenFOAM Heat Insulation Boundary Condition for Heat Conduction in Solids
  #1
New Member
 
Ali Berk Kahraman
Join Date: Dec 2015
Location: Braunschweig, Germany
Posts: 13
Rep Power: 10
abkahraman is on a distinguished road
Hello Everyone,

My problem may be very basic, but I could not figure it out for a whole week now and there is not anything on the internet that I could find.

My problem is to set the heat insulation boundary on LaplacianFoam. The problem consists of a 2-D rectangle of 1.5x10 cm dimensions. At one of the shorter sides, through and opening of 1 cm in the middle, a known amount of heat flux is supplied. At the other short side, this supplied heat is received. Anywhere else is insulated. It is known that the temperature is 45 C at the receiving shorter side, but the temperature is not known at the "heat supplying" side.

How do I specify unknown temperature for heat inlet and insulated sides of the geometry in "0" folder in documents T and/or gradTx/gradTy/gradTz?

Thanks in advance

Ali
abkahraman is offline   Reply With Quote

Old   March 17, 2016, 11:34
Default
  #2
Senior Member
 
Alex
Join Date: Oct 2013
Posts: 337
Rep Power: 21
zfaraday will become famous soon enough
Hello Ali,

It's easy as you already know the heat flux supplied. However, as you use laplacianFoam solver you may need to install swak4foam. Anyway, if you want to find out the proper specification of the desired BC take a look at my document. You won't find the specification for your case in the document (you will find the specification for an even more complex case instead), but at least you will get a good way to find it on your own.

Hope it helps,

Alex
__________________
Web site where I present my Master's Thesis: foamingtime.wordpress.com

The case I talk about in this site was solved with chtMultiRegionSimpleFoam solver and involves radiation. Some basic tutorials are also resolved step by step in the web. If you are interested in these matters, you are invited to come in!
zfaraday is offline   Reply With Quote

Old   May 12, 2017, 11:30
Default
  #3
Senior Member
 
alberto
Join Date: Apr 2016
Location: Mexico
Posts: 117
Rep Power: 10
dewey is on a distinguished road
Quote:
Originally Posted by zfaraday View Post
Hello Ali,

It's easy as you already know the heat flux supplied. However, as you use laplacianFoam solver you may need to install swak4foam. Anyway, if you want to find out the proper specification of the desired BC take a look at my document. You won't find the specification for your case in the document (you will find the specification for an even more complex case instead), but at least you will get a good way to find it on your own.

Hope it helps,

Alex

Hi, could you tell me how to install swak4foam on openFOAM 4.1? and explain me how works?

thaks for your time
dewey is offline   Reply With Quote

Old   August 15, 2020, 10:11
Default ExternalWallHeatFluxTemperature Boundary Condition
  #4
Member
 
Sachin
Join Date: Aug 2014
Location: India
Posts: 84
Rep Power: 11
Sachin m is on a distinguished road
I am trying to simulate a piping with insulation on it.
I know the heatflux value for it.
Unfortunately when i try using it the solver stops without any error message.
Iam using sonic foam.
When i remove the BC and change it to zero gradient the solver works.
Can anybody help me out to sort this out.
Is the BC not available anymore in Openfoam?
Iam using V2006.
Sachin m 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
Centrifugal fan j0hnny CFX 13 October 1, 2019 13:55
Domain Imbalance HMR CFX 5 October 10, 2016 05:57
Wrong flow in ratating domain problem Sanyo CFX 17 August 15, 2015 06:20
Enforce bounds error with heat loss boundary condition at solid walls Chander CFX 2 May 1, 2012 20:11
Implications for heat transfer when outlet pressure boundary condition used Blob CFX 2 March 26, 2009 06:22


All times are GMT -4. The time now is 21:11.