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chtMultiRegionFoam cyclic issue

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Old   November 12, 2018, 08:41
Default chtMultiRegionFoam cyclic issue
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Arthur
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HI,



I am having trouble with chtMultiRegionFoam cyclic simulations. I have set up and run mesh/splitMesh on my geometry and they both work fine, however when I try and run my simulation, I get the following error:


Quote:
--> FOAM FATAL ERROR:
Quote:
Negative initial temperature T0: -19569.9rom objectRegistry twoBlocksCyclic12_11 failed
available objects of type objectRegistry are

2
(
fluid
solid
)


From function Foam::scalar Foam::species::thermo<Thermo, Type>::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo<Thermo, Type>::*)(Foam::scalar, Foam::scalar)const, Foam::scalar (Foam::species::thermo<Thermo, Type>::*)(Foam::scalar, Foam::scalar)const, Foam::scalar (Foam::species::thermo<Thermo, Type>::*)(Foam::scalar)const) const [with Thermo = Foam::hConstThermo<Foam::rhoConst<Foam::specie> >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo<Thermo, Type> = Foam::species::thermo<Foam::hConstThermo<Foam::rho Const<Foam::specie> >, Foam::sensibleEnthalpy>]
in file /sw/OpenFOAM/OpenFOAM-6/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 54.

FOAM aborting

#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::error::abort() at ??:?
#2 Foam::species::thermo<Foam::hConstThermo<Foam::rho Const<Foam::specie> >, Foam::sensibleEnthalpy>::THs(double, double, double) const at ??:?
#3 Foam::heRhoThermo<Foam::rhoReactionThermo, Foam::SpecieMixture<Foam::singleComponentMixture<F oam::constTransport<Foam::species::thermo<Foam::hC onstThermo<Foam::rhoConst<Foam::specie> >, Foam::sensibleEnthalpy> > > > >::calculate() at ??:?
#4 Foam::heRhoThermo<Foam::rhoReactionThermo, Foam::SpecieMixture<Foam::singleComponentMixture<F oam::constTransport<Foam::species::thermo<Foam::hC onstThermo<Foam::rhoConst<Foam::specie> >, Foam::sensibleEnthalpy> > > > >::correct() at ??:?
#5 ? at ??:?
#6 __libc_start_main at ??:?
#7 ? at /home/abuild/rpmbuild/BUILD/glibc-2.22/csu/../sysdeps/x86_64/start.S:121
Aborted (core dumped)

I think it is an issue with my boundary conditions, but I don't know what is wrong with them.

Any help would be greatly appreciated! I have attached my '0' folder for my simulations.


Thank you!

Arthur
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Old   November 12, 2018, 21:29
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Peter Baskovich
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I think the problem is in you boundary files or regionProperties, if you post them I can tell more.
Also, I'd avoid using the keywords "solid" and "fluid" as region names, it's kind of asking for trouble.
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Old   November 13, 2018, 05:04
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The likely error is that inside your boundary file the entry for the region is missing. Please post those files.
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Old   November 13, 2018, 05:06
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Arthur
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Hi,

I resolved the problem, it was a wrongly defined p_rgh file!


Thank you for your responses!
Arthur
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boundary conditions, chtmultiregionfoam, conjugate, heat transfer

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