[stefannn]

Hi all, I'm trying to model entrained flow gasification of biomass. I already modified the coalChemistryFoam solver and removed the inert particle cloud, as this is not present in this case. However, the particle collisions are now not calculated, which is something I would really like to include.

The only two options for the stochastic collision model are 'none' and 'suppressionCollision'. And as far as I can tell, the latter is only influencing the ability of parcles to react if they collide with the inert particle cloud (which I removed).

Now I guess it would be possible to add the MPPIC modelling to the coalChemistryFoam (or reactingParcelFoam, which is kind of similar I guess), but I don't really know where to start. Is this a straightforward process?

In coalCloud.H the cloud is defined as a ReactingMultiphaseCloud. This is based on a ReactingCloud, which is based on a ThermoCloud, which is based on a KinematicCloud. Could I change this easily to MPPICloud, and which one (kinematicCloud?).

[kk2017]

Originally Posted by stefannn

Hi all, I'm trying to model entrained flow gasification of biomass. I already modified the coalChemistryFoam solver and removed the inert particle cloud, as this is not present in this case. However, the particle collisions are now not calculated, which is something I would really like to include.

The only two options for the stochastic collision model are 'none' and 'suppressionCollision'. And as far as I can tell, the latter is only influencing the ability of parcles to react if they collide with the inert particle cloud (which I removed).

Now I guess it would be possible to add the MPPIC modelling to the coalChemistryFoam (or reactingParcelFoam, which is kind of similar I guess), but I don't really know where to start. Is this a straightforward process?

In coalCloud.H the cloud is defined as a ReactingMultiphaseCloud. This is based on a ReactingCloud, which is based on a ThermoCloud, which is based on a KinematicCloud. Could I change this easily to MPPICloud, and which one (kinematicCloud?).

I'm also trying to add the MPPIC modelling to the coalChemistryFoam, which is really hard for me. Do you find any solutions?

[kk2017]

Originally Posted by kk2017

I'm also trying to add the MPPIC modelling to the coalChemistryFoam, which is really hard for me. Do you find any solutions?

I think I find a solution.

This thread gives an example on adding colliding model to coalCombustion library: Colliding Coal Cloud in coalCollidingChemistryFoam, and the example could be extended to the MPPIC modeling.

In this case, the following lines in MPPICCloud.C should be changed:

td.updateAverages(*this);

to

td.updateAverages(td.cloud());

Hope it helps.