[babakflame]

Dear Buddies
Hi
I want to simulate a diffusion flame with fireFoam. Does any body has any tutorial about this issue?
I would be very pleased if an experienced buddy help me on this object.


Thanks
bobi

[babakflame]

Dear Buddies
Hi
I have simulated diffusion flames with reactingFoam earlier. However now I want to simulate them with firefoams using FSD combustion model. I have looked into firefoam tutorials about poolfires. when I start my simulation, I got this error message:

Create time

Create mesh for time = 0.0522381


Reading g
Creating combustion model

Selecting combustion model FSD<psiCombustionModel,gasThermoPhysics>
Selecting thermodynamics package hsPsiMixtureThermo<reactingMixture<gasThermoPhysic s>>
Selecting chemistryReader foamChemistryReader
terminate called after throwing an instance of 'std::bad_cast'
what(): std::bad_cast
Aborted

I even deleted the chemistry properties file, made the chemistry solver off,modified the reactions file and the combustion model, Nevertheless I still get this error. I would be very please if an experienced fireFoam man help me.
Regards
Bobi

[Matze7]

Hi Bobi,

the combustion models have changed in OpenFoam 2.2.0. I don't know why, but some of the combustion models, which worked fine on 2.1.1, don't work on 2.2.0.

you can try to replace

combustion model FSD<psiCombustionModel,gasThermoPhysics>

with

combustion model FSD<psiThermoCombustion,gasThermoPhysic>

Regards

[babakflame]

Originally Posted by Matze7

Hi Bobi,

the combustion models have changed in OpenFoam 2.2.0. I don't know why, but some of the combustion models, which worked fine on 2.1.1, don't work on 2.2.0.

you can try to replace

combustion model FSD<psiCombustionModel,gasThermoPhysics>

with

combustion model FSD<psiThermoCombustion,gasThermoPhysic>

Regards

Hi Matze

Thanks for ur reply. now, I have a question about firefoam in 2.2.x. Does supprot multistep combustion?
As u know in 2.1.x firefoam only had singlestep combustion.

Regards
Bobi

[Matze7]

Hey Bobi,

I've no idea if fireFoam can handle that, sorry. I'm new at simulating with fireFoam and so my experience with it is quite little. I'm still struggling to get my own simulation running .

Regards.

[babakflame]

Hi matze
I I have a doubt about 0 folder. In this folder we have to create distinct folder for any reactant. however, I want to know the value for each specie in boundary field is in mole or mass fraction?

[Matze7]

Hi Bobi,

in my oppinion just mole fraction makes sense.