CFD Online Discussion Forums - aachenBomb with sprayFOAM not working

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aachenBomb with sprayFOAM not working

Hi,

why is the aachenBomb tutorial with the solver sprayFOAM in OpenFOAM 2.1.x not working? I have updated my Foam version today!

At first OpenFOAM tells me that:

Code:

keyword massFlowRate is undefined in dictionary run/tutorials/lagrangian/sprayFoam/aachenBomb/constant/sprayCloudProperties::subModels::coneNozzleInjectionCoeffs

after adding

Code:

massFlowRate 1e-3;

to the dictionary i got the next error:

Code:

#0  Foam::error::printStack(Foam::Ostream&) in "/home/XXX/OpenFOAM/OpenFOAM-2.1.x/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"

#1  Foam::sigSegv::sigHandler(int) in "/home/XXX/OpenFOAM/OpenFOAM-2.1.x/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"

#2   in "/lib64/libc.so.6"

#3  Foam::cachedRandom::scalar01() in "/home/XXX/OpenFOAM/OpenFOAM-2.1.x/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"

#4  Foam::ConeNozzleInjection<Foam::KinematicCloud<Foam::Cloud<Foam::SprayParcel<Foam::ReactingParcel<Foam::ThermoParcel<Foam::KinematicParcel<Foam::particle> > > > > > >::ConeNozzleInjection(Foam::dictionary const&, Foam::KinematicCloud<Foam::Cloud<Foam::SprayParcel<Foam::ReactingParcel<Foam::ThermoParcel<Foam::KinematicParcel<Foam::particle> > > > > >&) in "/home/XXX/OpenFOAM/OpenFOAM-2.1.x/platforms/linux64GccDPOpt/lib/liblagrangianSpray.so"

#5  Foam::InjectionModel<Foam::KinematicCloud<Foam::Cloud<Foam::SprayParcel<Foam::ReactingParcel<Foam::ThermoParcel<Foam::KinematicParcel<Foam::particle> > > > > > >::adddictionaryConstructorToTable<Foam::ConeNozzleInjection<Foam::KinematicCloud<Foam::Cloud<Foam::SprayParcel<Foam::ReactingParcel<Foam::ThermoParcel<Foam::KinematicParcel<Foam::particle> > > > > > > >::New(Foam::dictionary const&, Foam::KinematicCloud<Foam::Cloud<Foam::SprayParcel<Foam::ReactingParcel<Foam::ThermoParcel<Foam::KinematicParcel<Foam::particle> > > > > >&) in "/home/XXX/OpenFOAM/OpenFOAM-2.1.x/platforms/linux64GccDPOpt/lib/liblagrangianSpray.so"

So whats happening?

Greetings Jens,

The git version isn't always very stable. They made some changes to the git version, which affects that tutorial, namely this one: https://github.com/OpenFOAM/OpenFOAM...9e9c33a0fbe341

I think the related change is being tracked here: http://www.openfoam.com/mantisbt/view.php?id=407 - you can properly complain there ;)

Best regards,
Bruno

I'm the one who has reported on the issue. I guess the tutorial case hasn't been updated to reflect the changes. I've uploaded a sprayCloudProperties that works with the current version of sprayFoam (tested this morning), just copy it over and remove the extension.

There are a lot of new entries that I'm still figuring out. Mainly I'd like to know what the constantProperties part of the file defines for the parcels. Still looking for answers, will post when I find anything of note.

EDIT: I'd performed some limited testing and it appears that rho0,T0 and Cp0 are the properties of parcels as they are introduced into the domain. As the file currently stands, the r0, cp0 are for water at atmospheric pressure and T0. The dieselSpray class used to pull the properties from whatever liquid you were injecting at the stated conditions automatically. I'm still figuring out what properties get used where, as I think it would be better to obtain properties from liquidProperties.

i dont understand why you need to define massFlowRate, it looks like
you have some old files still hanging around.
If you do you can get some weird effect.
Have you done clean in lagrangian/intermediate and then wake libso?

still, I think you need to give it at keyword before the value.
Like
massFlowRate constant 1.0;

Quote:

Originally Posted by niklas (Post 343899)

thx

it works now!