Flow Options

Initial hydraulic condition may be specified as

• Equilibrium profile: The initial pressure head equals negative elevation head above a water table. The user may also replace the upper part of the equilibrium profile by a constant minimum pressure head.
• Pressure head: As specified by the user.
• Moisture content: As specified by the user.

Intercell relative hydraulic conductivity may be computed by:

• Arithmetic mean: The preferred method.
• Geometric mean: An alternative to the arithmetic mean.
• Upstream weighting: May be needed when simulating the movement of a sharp wetting front into a dry medium.

Hydraulic characteristic functions (for specifying the relations between pressure head, moisture content, and relative hydraulic conductivity) may be represented by:

• van Genuchten Model
• Brooks-Corey Model
• Haverkamp Model
• Tabular Data

See also:

• Other model Options: Basic, Transport, Solver, Output, Fluid Balance, Energy Balance
• Select model options

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