[Speno93]

Hello there, fellow Foamers.

I'm running an simulation of a gas mixing in air with reactingFoam (seeing as I don't want the gases to react, I have turned reactions off in the chemistryProperties and combustionProperties files) However when I try to run the solver, I keep getting this error message.

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  4.1                                   |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 4.1
Exec   : reactingFoam
Date   : Jul 30 2017
Time   : 20:39:30
Host   : "max-Lenovo-G50-80"
PID    : 3783
Case   : /home/max/OpenFOAM/max-4.1/run/EvaporatingExample
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


PIMPLE: Operating solver in PISO mode

Creating reaction model

Selecting combustion model laminar<psiChemistryCombustion>
Selecting chemistry type 
{
    chemistrySolver noChemistrySolver;
    chemistryThermo psi;
}

Selecting thermodynamics package 
{
    type            hePsiThermo;
    mixture         multiComponentMixture;
    transport       sutherland;
    thermo          janaf;
    equationOfState perfectGas;
    specie          specie;
    energy          sensibleEnthalpy;
}

terminate called after throwing an instance of 'std::bad_cast'
  what():  std::bad_cast
Aborted (core dumped)

I have no idea why its keeps doing it so I thought I would ask the folks on here if they have encounted this problem before?

[SimOF]

Hi,
I have the same problem. have you found any solution?

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


PIMPLE: Operating solver in PISO mode

Creating reaction model

Selecting combustion model laminar<psiChemistryCombustion>
Selecting chemistry type
{
chemistrySolver noChemistrySolver;
chemistryThermo psi;
}

Selecting thermodynamics package
{
type hePsiThermo;
mixture multiComponentMixture;
transport const;
thermo hConst;
energy sensibleEnthalpy;
equationOfState perfectGas;
specie specie;
}

terminate called after throwing an instance of 'std::bad_cast'
what(): std::bad_cast

[cdunn6754]

It's hard to say exactly, I just happen to have recently run into a similar error. My first guess would be that you should be using a reactingMixture rather than a multiComponentMixture in your thermophysicalProperties dictionary file.

The error you are getting is telling you that a dynamic_cast<> somewhere is going wrong. I think it is probably this one in the constructor for ChemistyModel

     reactions_
        (
            dynamic_cast<const reactingMixture<ThermoType>&>(this->thermo())
        ),

You are (with that dynamic_cast) trying to upcast the thermo reference to a reactingMixture reference but is derived from multiComponentMixture, not reactingMixture. If you are just simulating passive transport and not reactive flows you might want to look into using a simpler solver that doesn't necessarily include all of the reaction stuff. Then you probably could use multiComponentMixture.