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

conjugate heat transfer

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 19, 2005, 02:57
Default conjugate heat transfer
  #1
Masood
Guest
 
Posts: n/a
i am trying to analyze a heat sink of my computer processor. i modelled it in gambit then add a fluid volume. over it. but do i have to connect these two volumes before meshing so i can get heat transfered from solid sink body to the air. wht should i do in this case.

thanks in advance.
  Reply With Quote

Old   June 23, 2005, 04:35
Default Re: conjugate heat transfer
  #2
Wayne
Guest
 
Posts: n/a
i guess u cannot get to mesh seperately once u have combine both of the volume. i propose u to try firstly build a domain of fluid volume, and then create the heatsink volume inside the volume. Using gambit split volume feature, u shld be able to split the heatsink off the fluid volume. (u shld choose to retain the heatsink volume). As a results, u shld be able to get a interacting domain of fluid volume to the heatsink. hope this is made understood and helpful to you.
  Reply With Quote

Old   June 26, 2005, 02:05
Default Re: conjugate heat transfer
  #3
Masood
Guest
 
Posts: n/a
hi when i make the volume in fluid volume and split it with the heat sink volume(which is made in the fluid volume) there will be 2 heat sink volumes. shld i not use the subtract and retain the heat sink volume. or i have to do the split volume.(in slipt volme i dont think i shld retain the volume used fr splitting. anyway as soon i tried i will give the feed back. Thanks...
  Reply With Quote

Old   June 26, 2005, 21:39
Default Re: conjugate heat transfer
  #4
Wayne
Guest
 
Posts: n/a
refering to your case. i think i made something unclear. to made the interface of both of the volume interacting, u shld still follow the splitting (and retain) process that i recommend. but, after that, u shld erase the previous volume of the heatsink solid. and then, u define both of the voulme (heatsink and fluid) seperately (as fluid and heatsink material respectively) to make the according modeling. hope this time will help.
  Reply With Quote

Old   July 11, 2005, 07:39
Default Re: conjugate heat transfer
  #5
Masood
Guest
 
Posts: n/a
hi Wayne

man i tried the splitting procedure. it gone well but when i tried to import mesh in Fluent. it start making objections like (if i correctly remeber), two different materials at similar node strings, or something like tht. and it splits my model into more regions than only 2 in the heat sink case. i am stuck here...
  Reply With Quote

Old   July 11, 2005, 22:01
Default Re: conjugate heat transfer
  #6
Wayne
Guest
 
Posts: n/a
hi massod, do u mean that u cant get to import the mesh? which version of gambit are u using? did u define both of the region (hs and fluid) respectively?

regards, wayne
  Reply With Quote

Old   July 15, 2005, 07:30
Default Re: conjugate heat transfer
  #7
Masood
Guest
 
Posts: n/a
hi i am using gambit 1.3. i defined heat sink as solid and above space as fluid. in gambit it defined correctly but during import to FLUENT caused errors. i exported as gambit neutral file.
  Reply With Quote

Old   July 17, 2005, 21:44
Default Re: conjugate heat transfer
  #8
Wayne
Guest
 
Posts: n/a
i dunno what exactly cause the error, as I've never tried out gambit version 1.3. But according to the procedures u mentioned, it shld work fine. btw, u shld have meshed the model and define the according boundary conditions respectively (i.e. the air inlet, outlet, continuum of fluid and solid), din u? cant u choose to export it in .msh format?... as i usually get it exported that way... hope could help.
  Reply With Quote

Old   July 17, 2010, 03:56
Default conjugate heat transfer tutorial
  #9
New Member
 
omar
Join Date: Apr 2010
Posts: 26
Rep Power: 15
galapago is on a distinguished road
hi every body.
i need a fluent tutorial which explain conjugate heat transfer, this tutorial is called cooling flow over fuel rods, i saw some images but dont cant find all the tutorial. please someone can tellme where i can download this tuto. thanks in advance, i really need this tuto please help me

galapago is offline   Reply With Quote

Old   December 8, 2010, 22:47
Default
  #10
New Member
 
Join Date: Dec 2010
Posts: 14
Rep Power: 15
kskong is on a distinguished road
Quote:
Originally Posted by galapago View Post
hi every body.
i need a fluent tutorial which explain conjugate heat transfer, this tutorial is called cooling flow over fuel rods, i saw some images but dont cant find all the tutorial. please someone can tellme where i can download this tuto. thanks in advance, i really need this tuto please help me

Hi galapago,

Any idea where to find this tutorial? I need it also. Thanks!!
kskong 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
Heat Flux at wall in a conjugate heat transfer problem Chander CFX 2 July 9, 2011 23:22
Convective / Conductive Heat Transfer in Hypersonic flows enigma Main CFD Forum 2 November 1, 2009 23:53
Conjugate heat transfer problem hvem10 FLUENT 2 October 29, 2009 18:31
Conjugate heat transfer and radiation modeling questions shankara.2 FLUENT 0 April 21, 2009 16:55
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55


All times are GMT -4. The time now is 14:21.