7.6.16.6.1. Brooks_Corey

Syntax

Relative Permeability [{of} SpeciesName] = Brooks_Corey Liquid_Phase_Name = liquid_phase_name

Scope

Aria Material

Summary

A Brooks-Corey liquid/gas model for relative permeability

Description

Residual saturations for liquid and gas are $S_{lr}$ and $S_{gr}$ .

Hence the maximum possible liquid saturation is $S_{lm} = 1 - S_{gr}$ and the effective saturation is $S_{e} = (S_{l}-S_{lr}) / (S_{lm}-S_{lr})$ where $S_{l}$ is the wetting phase saturation. The pore size distribution index for the media is $\lambda$ .

For wetting phase, if $S_{l} >= S_{lm}$ , then $K_{l} = 1$ , else if $S_{l} <= S_{lr}$ then $K_{l} = 0$ , else $K_{l} = S_{e}^{3 + 2 / \lambda}$ .

For nonwetting phase, if $S_{l} >= S_{lm}$ , then $K_{g} = 0$ , else if $S_{l} <= S_{lr}$ then $K_{g} = 1$ , else $K_{g} = (1 - S_{e})^{2} (1 - S_{e}^{1 + 2 / \lambda})$ .

Parameter	Value	Default
{of}	{of \| species \| subindex}	–
SpeciesName	string	–
liquid_phase_name	“string”	–