Ansys Fluent can model the mixing and transport of chemical species by solving conservation equations describing convection, diffusion, and reaction sources for each component species. Multiple simultaneous chemical reactions can be modeled, with reactions occurring in the fluid phase (volumetric reactions) and/or on wall or particle surfaces, and in the porous region. Species transport modeling capabilities, both with and without reactions, are described in this section.

Note that you may also want to consider modeling your turbulent reacting flame using the mixture fraction approach (for non-premixed systems, described in Non-Premixed Combustion), the reaction progress variable approach (for premixed systems, described in Premixed Combustion), the partially premixed approach (described in Partially Premixed Combustion), or the composition PDF Transport approach (described in Composition PDF Transport). Modeling multiphase species transport with finite-rate chemistry can be found in Multiphase Flows.

For more information about using these models in Ansys Fluent, see Modeling Species Transport and Finite-Rate Chemistry in the User's Guide.