flow.conductivity

flow.conductivity(chi, config)

Cell conductivity, interpolated linearly between air and solid.

Linear in chi rather than harmonic or power-law: this is the material mixture inside a cell of the interface band, and the band is two cells wide by construction (:mod:cadjoint.flow.domain), so the interpolation rule only ever acts where the geometry genuinely is part metal. The rule that decides how a face between two such cells conducts is the harmonic mean, and that one is not a choice — see the module docstring.

Parameters

Name	Type	Description	Default
chi	jax.Array	Solid fraction in [0, 1], (NX, NY, NZ).	required
config	EnergyConfig	The energy configuration.	required

Returns

Name	Type	Description
	jax.Array	(NX, NY, NZ) conductivity in lattice units.