Theory Manual Version 3.4
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Subsection 5.7.6: Referentially Transversely Isotropic Permeability Up Chapter 5: Constitutive Models Subsection 5.8.1: Constant Isotropic Diffusivity

## 5.8 Solute Diffusivity

Diffusivity materials provide a constitutive relation for the solute diffusivity in a biphasic-solute material. In general, the diffusivity tensor may be a function of strain and solute concentration.
Subsection 5.7.6: Referentially Transversely Isotropic Permeability Up Chapter 5: Constitutive Models Subsection 5.8.1: Constant Isotropic Diffusivity