Permeabilitye
Permeabilitye is a coined term used in some discussions of transport phenomena to describe a generalized permeability that accounts for effects beyond classical formulations. It is not a standardized concept in mainstream literature, and its precise definition and units can vary among authors. In general, permeabilitye is envisioned as a parameter that characterizes how easily a medium accommodates the passage of a quantity—such as fluid, electric current, or magnetic flux—when dissipation, nonlinearity, or time dependence are significant.
In practice, permeabilitye is often treated as a complex or state-dependent quantity. It may be expressed as
Measurement and estimation of permeabilitye typically involve fitting experimental data to constitutive relations that include ke*(ω)
See also: permeability, Darcy’s law, complex permeability, porosity, anisotropy.