[farshadexp]

Hi there...
I have a problem with EDC model, due to unknown reason no combustion occurs.
From tutorial folder, I copied smallpoolfire2D (fireFoam) and changed combustion model to EDC. Flow have been modeled, but there is no temperature rise and no combustion.
Can anyone help me please??
p.s: I also added a hot region besides to fuel inlet as ignition source via setFields.

[clapointe]

EDC was developed for RANS. It has since been extended to LES by various researchers (see eg. Chen, Z., Wen, J., Xu, B., and Dembele, S. (2014).Large eddy simulation of a medium-scalemethanol pool fire using the extended eddydissipation concept.International Journalof Heat and Mass Transfer70, 389–408.doi:https://doi.org/10.1016/j.ijheatmass...er.2013.11.010). Since the fireFoam tutorials are LES, the EDC will not work. You will need to find an extension of the EDC to LES for it to work. There should be one in the OpenFoam+ flavor of openFoam.

Addressing your ps -- the EDC will not need ignition. It is like infinitelyFast.

Caelan

[sufjanst]

I don't know if you have to use EDC for your problem.

I made good experience with PaSR with LES. It is also finite-rate so you should give it a try.


PS.: Did you check your reaction mechanism? Maybe you have some issues with your activation energy for your reactions.

[farshadexp]

Thanks for your response.
I've changed fireFoam turbulance model to k-e, but still there is no combustion.
It would be appreciated if you take time and have a look to attched.

[farshadexp]

Dear sufjanst
Is there any special trick to use PaSR for simulating fire?! I used mechanism from tutorial files.

[clapointe]

There are some reactingFoam tutorials that use EDC. I suggest looking at those. Also note : I assumed that EDC would act like EDM for les, but I could very well be wrong. I have not used EDC for RANS, nor have I looked at the source code.

Caelan