From charlesreid1

More information on Cantera's diffusion models here: Cantera/Diffusion

Multicomponent diffusivities:


D_{kj}

Mixture averaged diffusivities:


D_{km} = \dfrac{1-Y_k}{ \sum_{j \neq k}^{K} \dfrac{ X_j }{ \mathbb{D}_{jk} } }

Binary diffusivities:


\mathbb{D}_{jk}