Feature new flamelet: addition of preferential diffusion

[EvertBunschoten]

Proposed Changes

Addition of preferential diffusion model for modeling of hydrogen-rich reactants.
The new features allow for an additional transported scalar; the mixture fraction. This enables the solution process for partially pre-mixed, laminar flame problems, as well as the implementation of preferential diffusion.

A detailed description of the SU2 FGM solver can be found on the SU2 website repository (https://github.com/su2code/su2code.github.io) under feature_new_flamelet.

Related Work

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