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

heat transfer from fluid to a solid

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 27, 2015, 12:05
Default heat transfer from fluid to a solid
  #1
Senior Member
 
Laurent DASTUGUE
Join Date: May 2014
Location: Chartres, France
Posts: 122
Rep Power: 11
laurentD is on a distinguished road
Hi foamers,
i am currently trying to understand how does OpenFOAM calculate the heat flux from a fluid to a solid. I know that the correct relation is : Phi = -h grad T but i don't find the part of the programmed code which is linked to the calculation of the heat flux, or linked to the way does OpenFOAM calculate the value of the h.
Can anybody help me, showing me the way to attain these informations ?
Thank you very much.
Laurent
laurentD is offline   Reply With Quote

Old   May 4, 2015, 10:06
Default
  #2
Senior Member
 
Laurent DASTUGUE
Join Date: May 2014
Location: Chartres, France
Posts: 122
Rep Power: 11
laurentD is on a distinguished road
Nobody is working with fluid and solid parts ?
I can't believe that...
I just need the location where i can find the calculation of the heat transfer between solid and fluid.
Currently i am searching into the program but if anybody can help me...
Have a good day,
Laurent
laurentD is offline   Reply With Quote

Old   May 4, 2015, 10:56
Default
  #3
New Member
 
Naveed Iqbal
Join Date: Oct 2009
Location: Germany
Posts: 19
Rep Power: 16
niqbal is on a distinguished road
hi laurentD,

you need to be more precise. What kind of flow it is? As there are different approaches for different flows; are you doing multiphase or siingle phase. If that is a single phase and you are looking for heat transfer between solid and fluid you may have a look in solvers chtMultiRegionFoam/solid.

If you are looking for heat transfer from fluid to solid, then you need to look in multiphase solvers and relevant heat transfer models.
niqbal is offline   Reply With Quote

Old   May 4, 2015, 11:25
Default
  #4
Senior Member
 
Laurent DASTUGUE
Join Date: May 2014
Location: Chartres, France
Posts: 122
Rep Power: 11
laurentD is on a distinguished road
Hi Niqbal,
i work with a single phase flow, and i use the solver chtMultiRegionFoam.
But when i loook into the programs in the directories under chtMultiRegionFoam/ i don't find the one which calculates the heat transfer between my hot fluid and my cold solid, neither under fluid/ nor solid/.
This is why i want to know if there is another location where i should search.
Or maybe the solution is here but i don't recognize it.
Thank you very much for your answer.
Laurent
laurentD is offline   Reply With Quote

Old   May 4, 2015, 12:01
Default
  #5
New Member
 
Naveed Iqbal
Join Date: Oct 2009
Location: Germany
Posts: 19
Rep Power: 16
niqbal is on a distinguished road
hi Laurent,

have a look in ../solid/setRegionSolidFields.H and ../solid/solveSolid.H and energy equation in fluid folder.

Cheers,
Naveed
niqbal is offline   Reply With Quote

Old   May 6, 2015, 10:11
Default
  #6
Senior Member
 
Laurent DASTUGUE
Join Date: May 2014
Location: Chartres, France
Posts: 122
Rep Power: 11
laurentD is on a distinguished road
I have look these two files. But i am not an expert on C++-programming.
Does it seem that OF use the enthalpy to make the heat transfer ?
laurentD is offline   Reply With Quote

Old   May 6, 2015, 11:03
Default
  #7
Senior Member
 
Laurent DASTUGUE
Join Date: May 2014
Location: Chartres, France
Posts: 122
Rep Power: 11
laurentD is on a distinguished road
In fact, i am trying to do the following thing :

1/ Do a cinematic calculation with a fluid going inside a solid, without thermic calculations.

2/ Do a thermic job, using results from the first job as inputs (like the h convection coefficient for example).

But i have the impression that the h convection coefficient between fluid and solid isn't calculated by OpenFOAM. Does anybody have an idea to help me to build a job as i want. Maybe using phi ?...

Best regards,
Laurent
laurentD 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
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 06:21
which solver (tutorial) is for heat transfer between fluid and solid? mxylondon OpenFOAM 3 December 14, 2012 20:54
Solid / Fluid Heat Transfer Koranten FLUENT 3 March 19, 2011 08:21
modeling heat transfer betwwen fluid and solid Al Mazdeh CFX 0 March 13, 2008 11:35
Water vapour condensation in CFX-5.7.1 hdj CFX 1 November 27, 2005 08:15


All times are GMT -4. The time now is 08:40.