Radiation missing in buoyantBoussinesqSimpleFoam

hanness · September 24, 2013, 11:33

Hi everyone,

before reporting it as a bug I wanted to check whether I'm missing anything here.
In the buoyantBoussinesqPimpleFoam solver the TEqn states the following:

Code:

    fvScalarMatrix TEqn
    (
        fvm::ddt(T)
      + fvm::div(phi, T)
      - fvm::laplacian(alphaEff, T)
     ==
        radiation->ST(rhoCpRef, T)
      + fvOptions(T)
    );

However, in the respective file in the buoyantBoussinesqSimpleFoam solver the part

Code:

radiation->ST(rhoCoRef, T)

is missing:

Code:

    fvScalarMatrix TEqn
    (
        fvm::div(phi, T)
      - fvm::laplacian(alphaEff, T)
     ==
        fvOptions(T)
    );

Also in the buoyantSimpleFoam and buoyantPimpleFoam this line is included. Obviously the steady-state Boussinesq solver cannot be used with radiation. Is there any reason or has it just been forgotten?

Hannes

peettter · October 23, 2013, 12:37

dear hanness

do you have any update on this issue?

regards
peter

Tobi · October 25, 2013, 17:28

Hi all,

as it looks like in the solver is no radiation term included.
This is not a bug or a missing thing. Its only the fact that this solver is not build with radiation. In the official user guide there is no information about radiation.

If you want to have the SIMPLE algorithm to have an option for radiation you should implement it - recompile it - or build a new solver and then everything is fine.

Regards
Tobi

September 24, 2013, 11:33	Radiation missing in buoyantBoussinesqSimpleFoam	#1
hanness Member hannes Join Date: Mar 2013 Posts: 47 Rep Power: 13	Hi everyone, before reporting it as a bug I wanted to check whether I'm missing anything here. In the buoyantBoussinesqPimpleFoam solver the TEqn states the following: Code: fvScalarMatrix TEqn ( fvm::ddt(T) + fvm::div(phi, T) - fvm::laplacian(alphaEff, T) == radiation->ST(rhoCpRef, T) + fvOptions(T) ); However, in the respective file in the buoyantBoussinesqSimpleFoam solver the part Code: radiation->ST(rhoCoRef, T) is missing: Code: fvScalarMatrix TEqn ( fvm::div(phi, T) - fvm::laplacian(alphaEff, T) == fvOptions(T) ); Also in the buoyantSimpleFoam and buoyantPimpleFoam this line is included. Obviously the steady-state Boussinesq solver cannot be used with radiation. Is there any reason or has it just been forgotten? Hannes

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[OpenFOAM] Xlib: extension "GLX" missing on display	goldbeard	ParaView	5	March 24, 2013 14:12
errors when installing openfoam2.1 on ubuntu12.o4	hewei	OpenFOAM Installation	5	May 29, 2012 08:43
Modeling both radiation and convection on surfaces - Ansys Transient Thermal R13	s.mishra	ANSYS	0	March 31, 2012 05:12
Multiphase radiation in CFX	Luk_Fiz	CFX	5	March 17, 2009 04:51
Fluent incident radiation problem	Michael Schwarz	Main CFD Forum	0	October 21, 1999 06:56

October 23, 2013, 12:37		#2
peettter New Member peter fox Join Date: Jul 2011 Posts: 4 Rep Power: 15	dear hanness do you have any update on this issue? regards peter

October 25, 2013, 17:28		#3
Tobi Super Moderator Tobias Holzmann Join Date: Oct 2010 Location: Bad Wörishofen Posts: 2,711 Blog Entries: 6 Rep Power: 52	Hi all, as it looks like in the solver is no radiation term included. This is not a bug or a missing thing. Its only the fact that this solver is not build with radiation. In the official user guide there is no information about radiation. If you want to have the SIMPLE algorithm to have an option for radiation you should implement it - recompile it - or build a new solver and then everything is fine. Regards Tobi