7.6.15.13.11. Mesh_Deforming

Syntax

Porosity [{of} SpeciesName] = Mesh_Deforming ([Biot = biot] | [Clip = clip])

Scope

Aria Material

Summary

Rock compressibility linearized model of porosity for deforming media

Description

Porosity model for a deforming mesh, implemented as

$\phi = 1 - Bi \left( 1 - \frac{\phi_0}{det(F)}\right)$

Where the Biot parameter ( $Bi$ ) defaults to 1. An optional clipping tolerance ( $\epsilon$ ) can be provided, so that the result is clipped to lie between $\epsilon$ and $1-\epsilon$ . If you do not provide a clipping tolerance, Aria will fail the time step if the resulting porosity is outside those bounds with a default $\epsilon$ of $10^{-6}$ .

Parameter	Value	Default
{of}	{of \| species \| subindex}	–
SpeciesName	string	–
biot	real	1
clip	real	1e-06