Dynamic Viscosity Fluid 2

Select a Dynamic viscosity 2 (SI unit: Pa·s). The default uses values From material as defined by the Fluid 2 selection. If User defined is selected, enter another value or

expression. The default is 0.

Relative Permeability Fluid 2

Select the Relative permeability r2 (a dimensionless number between 0 and 1) for the fluid 2. The default is 1.

M A T R I X P R O P E R T I E S

Select the material to use as porous matrix. Select Domain material from the Porous material list (the default value) to use the material defined for the porous domain. Select another material from the Porous material list to use that material’s properties.

Porosity

The default Porosity p (a dimensionless number between 0 and 1) uses the value From material, defined by the Porous material selection. If User defined is selected, enter another value or expression The default is 0.

Permeability

The default Permeability (SI unit: m2) uses the value From material, as defined by the

Porous material selection. If User defined is selected, choose Isotropic to define a scalar value or Diagonal, Symmetric, or Anisotropic to enter a tensor value and enter other values or expressions in the field or matrix.

Initial Values

The Initial Values feature adds an initial value for the pressure and the saturation of the fluid 1 (that is, the fraction of that fluid inside the pore space) that can serve as an initial condition for a transient simulation or as an initial guess for a nonlinear solver.

D O M A I N S E L E C T I O N

From the Selection list, choose the domains to define an initial value.

I N I T I A L V A L U E S

Under Pressure enter a value or expression for the initial value of the Pressure p

(SI unit: Pa). The default value is 0 Pa.

Under Saturation fluid 1 enter a value or expression for the initial value of the Pressure and Saturation fluid 1 s1 (a dimensionless number between 0 and 1). The default value is 0. The saturation of the fluid 2 is then calculated as s2 = 1 s1.

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