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

TEqn implementation in icoReactingMultiphaseInterFoam

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 30, 2019, 10:28
Question TEqn implementation in icoReactingMultiphaseInterFoam
  #1
New Member
 
Gowthaman Parivendhan
Join Date: Aug 2019
Location: Dublin, Ireland
Posts: 3
Rep Power: 4
gowthaman is on a distinguished road
Hi Foamers,

I have a basic question on implementation of temperature equation in one of the solvers in OF v1806. I was going through the TEqn.H file of icoReactingMultiphaseInterFoam in OF and found the following implementation:

Code:
   
 fvScalarMatrix TEqn
    (
        fvm::ddt(rhoCp, T)
      + fvm::div(rhoCpPhi, T, "div(phi,T)")
      - fvm::Sp(fvc::ddt(rhoCp) + fvc::div(rhoCpPhi), T)
      - fvm::laplacian(kappaEff, T,  "laplacian(kappa,T)")
      ==
        fluid.heatTransfer(T)
      + radiation->ST(T)
      + fvOptions(rhoCp, T)
    );
Does the left-hand side of the equation mean the following?
\rho C_{p} \frac{\partial T}{\partial t} + \rho C_{p} \nabla . (\Phi T) - \Delta (kT)

If that is the case, then why are density and Cp has taken out as constant? Shouldn't the volume of fluid averaged rhoCp depend on both time and space in a multiphase system?

Please let me know if I'm missing something here as I'm quite new to heat transfer modelling.

Many thanks,
Gowthaman
gowthaman is offline   Reply With Quote

Reply

Tags
heat and mass transfer, openfoam 1806, teqn, vof method

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
Radiation Models in General and the P1 implementation Tobi OpenFOAM Running, Solving & CFD 8 September 21, 2021 05:59
Issues in FGM combustion model implementation Lisandro Maders OpenFOAM Programming & Development 15 April 22, 2020 19:18
Explicit source term implementation wvn OpenFOAM Programming & Development 0 November 14, 2018 11:31
Implementation issues of fvSchemes / laplacianScheme, in particular gaussLaplacianSch thomek OpenFOAM Programming & Development 0 October 18, 2010 05:10
Please explain the implementation of species transport Eqn in reactingFoam kallipygian OpenFOAM Running, Solving & CFD 0 October 13, 2008 07:29


All times are GMT -4. The time now is 03:29.