[N. A.]

1. What is a passiveparticle. Does any one have documentation and any tutorial that uses Passiveparticle

2. I am trying to simulate Coal particles and interested in adding more species into it and want to modify the Lagrangian routine by addiing more variables to the particle properties, such as (U, T, d). I wish to add multi-component species such as (Yi as a mass fraction)?

Can any shed some light on above two points as to how to proceed in Openfoam. Any information will be greatly helpful.