CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Post-Processing

wallHeatFlux utility for an incompressible case

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

Like Tree33Likes

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 21, 2018, 07:25
Default
  #61
Retired Super Moderator
 
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,978
Blog Entries: 45
Rep Power: 128
wyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to all
Greetings to all!

@Nestor: My apologies for not getting back to you sooner on your post, but these past few years have been hectic on my side...

Either way, I've did feel the need myself to update this utility to OpenFOAM 5, so I've now published the updated code for OpenFOAM 5 and 6, provided here: https://github.com/wyldckat/wallHeatFluxIncompressible

Best regards,
Bruno
__________________
wyldckat is offline   Reply With Quote

Old   November 30, 2018, 04:38
Default
  #62
New Member
 
priyesh kakka
Join Date: Jan 2018
Posts: 13
Rep Power: 8
kakkapriyesh is on a distinguished road
Quote:
Originally Posted by eelcovv View Post
Hi,

I modified the standard wallHeatflux utility which comes default with OF into a version for incompressible flows already a while ago. Also removed a bug out of the code. Well, have a look at the code, it works for me.

One remark though: the utility does not seem to work when you use groovyBC for your temperature boundary conditions. It does not crash, but the resulting wall heat flux will not be correct. In case you want to use this utility in combination with groovyBC, you have to edit your results file T and change all groovyBC bc's into fixedValues (while leaving the non-uniform list of temperature at the wall as generated by groovyBC). Then the generated heatflux will be correct.

Eelco
Hi thanks alot,it works for postProcess now, I want to incorporate it to calculate average wall heat flux over a period of time(hence Nusselt number),by taking fieldaverage at each timestep. how to proceed for it? is there any other way i can calculate it? I am a newbie at OpenFoam4.x and am using LES and buoyantBoussinesqPimpleFoam.
kakkapriyesh is offline   Reply With Quote

Old   December 22, 2018, 11:07
Default
  #63
Retired Super Moderator
 
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,978
Blog Entries: 45
Rep Power: 128
wyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to allwyldckat is a name known to all
Quick answer: See this thread: Time-average of a patch (wallHeatFlux)
wyldckat is offline   Reply With Quote

Old   April 2, 2023, 07:46
Default installation problem on openfoam 2212
  #64
New Member
 
Join Date: Apr 2023
Posts: 11
Rep Power: 3
little_fish is on a distinguished road
hello,



i m a new user of openfoam, and i have some problem to compill the wallheatfluxincompressible function.

i work currently on openfoam2212.




on the git, i only see instruction for openfoam 2, 5 and 6.



Some one know if i can use this function on a openfoam.com version, not .org..



regards
little_fish is offline   Reply With Quote

Old   April 3, 2023, 14:35
Exclamation
  #65
Member
 
Thiago Parente Lima
Join Date: Sep 2011
Location: Diamantina, Brazil.
Posts: 64
Rep Power: 15
thiagopl is on a distinguished road
Hi,

This is an old thread when OF had the solver buoyantBoussinesqSimpleFoam. The function wallHeatFlux didn't work on it. In OF 10 we have only the buoyantFoam solver and the function wallheatfluxincompressible is not necessary anymore, just use wallHeatFlux.
The heat transfer solvers in OF changed a lot since 2015. It is better to keep up to date.

Regards.
__________________
Fields of interest: buoyantFoam, chtMultRegionFoam.
thiagopl is offline   Reply With Quote

Old   April 3, 2023, 14:53
Default
  #66
New Member
 
Join Date: Apr 2023
Posts: 11
Rep Power: 3
little_fish is on a distinguished road
thank you for your answer.

So you really think i can use wall heat flux in a compressible case ?

because i tried once and i had some error about using the wrong solver..
i will send the message i had in this case, may be i have configurate wrong my simulation..

regards
little_fish is offline   Reply With Quote

Old   April 4, 2023, 09:54
Default
  #67
Member
 
Thiago Parente Lima
Join Date: Sep 2011
Location: Diamantina, Brazil.
Posts: 64
Rep Power: 15
thiagopl is on a distinguished road
Yes, you can find good tutorials here: https://upcommons.upc.edu/bitstream/...REPORT_260.pdf

You may have to adapt something to run in OpenFoam 10, but they help a lot.
__________________
Fields of interest: buoyantFoam, chtMultRegionFoam.
thiagopl is offline   Reply With Quote

Old   April 6, 2023, 03:25
Default
  #68
New Member
 
Join Date: Apr 2023
Posts: 11
Rep Power: 3
little_fish is on a distinguished road
Ok, i found a solution



thank you



regards
little_fish is offline   Reply With Quote

Reply

Tags
incompressible, open foam, wallheatflux

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
how to create an internal fan for a multiRegion case? phsieh2005 OpenFOAM 0 February 2, 2012 16:32
wallHeatFlux utility in OpenFoam1.6 maruthamuthu_venkatraman OpenFOAM 29 October 3, 2011 10:43
thermal analysis - how to model internal fan? Pei-Ying Hsieh Main CFD Forum 6 March 20, 2008 10:35
Free surface boudary conditions with SOLA-VOF Fan Main CFD Forum 10 September 9, 2006 12:24
flow simulation across a small fan jane luo Main CFD Forum 15 April 12, 2004 17:49


All times are GMT -4. The time now is 22:12.