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

Time dependent heat flux

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

LinkBack Thread Tools Display Modes
Old   November 14, 2012, 17:59
Default Time dependent heat flux
Nikunj Raithatha
Join Date: Jul 2012
Location: Washington DC
Posts: 47
Rep Power: 7
Nikunj.R is on a distinguished road
Hello All!

I am trying to simulate an example with a trubulentHeatFluxTemperature boundary condition. While I have successfully implemented this BC, I am wanting to introduce time dependent heat flux in table format, where one specifies time and the corresponding heat flux value. I believe it is doable for fields like T, U using uniformFixedValue type, I dont know how to do it while using trubulentHeatFluxTemperature type.

Please let me know how to recompile this BC type or related discussions.

Nikunj.R is offline   Reply With Quote

Old   January 22, 2013, 06:55
Join Date: Aug 2012
Location: Berlin
Posts: 74
Rep Power: 7
vainilreb is on a distinguished road
Hey Nikunj,

have you already found a way to do this? It's exactly the problem I'm facing right now.

Best regards,

vainilreb is offline   Reply With Quote

Old   April 15, 2015, 04:55
New Member
Join Date: Jun 2014
Posts: 2
Rep Power: 0
Gaspacho is on a distinguished road
Dear all ,

I 'm also facing this problem. I would like to define two linearly time dependent boundary conditions : a wall heat flux ( W/m^2) and a mixture gas mass flow rate (kg/s). For the heat flux , I was testing the compressible::turbulentHeatFluxTemperature boundary condition on the hot room tutorial case from tutorials/heatTransfer/buoyantPimpleFoam and I modified the Temperature boundary condition for the floor like this :

        type compressible::turbulentHeatFluxTemperature;
        heatSource flux; // flux for W/m^2
        q  tableFile;
         fileName   "/home/user/Openfoam/hotRoom/myDataFile.txt"
         outOfBounds   clamp;
       kappa fluidThermo;
       Qr none;
       kappaName       none;
       value uniform 300;
However this way does not seem to work as q expects the key word uniform with scalar value. May someone provide hints to do some time-dependent heat flux and mass flow rate BC ?

Thank you in advance !
Gaspacho 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
An error has occurred in cfx5solve: volo87 CFX 5 June 14, 2013 17:44
AMI speed performance danny123 OpenFOAM 19 October 24, 2012 07:44
Heterogeneous heat flux Kev STAR-CD 4 July 7, 2009 04:48
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 02:58
solar heat flux through roof Tim FLUENT 1 January 17, 2007 17:01

All times are GMT -4. The time now is 02:04.