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Earth Science Module

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Pore-Scale FlowPore-Scale Flow

This non-conventional model of porous media flow utilizes Navier-Stokes equations in the interstices of a porous media. The model comes from the pore-scale flow experiments conducted by Arturo Keller, Maria Auset, and Sanya...

Biot PoroelasticityBiot Poroelasticity

The Biot Poroelasticity example two-way couples Darcy's law and the plane strain application modes to assess deformation of porous media that results from fluid withdrawals. The model builds on top of the Terzaghi Compaction example....

Forchheimer FlowForchheimer Flow

The coupling of free media flow with porous media flow is common in the fields of earth science and chemical engineering. Perhaps the most common way to deal with coupled free and porous media flow is to incorporate flow described by...

Sorbing SoluteSorbing Solute

In this example water ponded in a ring on the ground moves into a relatively dry soil column and carries a chemical with it. As it moves through the variably saturated soil column, the chemical attaches to solid particles, slowing the...

Two-Phase Flow in Porous MediaTwo-Phase Flow in Porous Media

The first model describes the simultaneous flow of two immiscible fluids in porous media - here air displaces water in a multi-step inlet pressure experiment. We solve for the pressure and the degree saturation for the air and water...

Variable Saturated FlowVariable Saturated Flow

This example utilizes the Richards’ Equation application mode to assess how well geophysical irrigation sensors see the true level of fluid saturation in variably saturated soils. Andrew Hinnell, Alex Furman, and Ty Ferre from the...

Calculation of the Height of the Water Table in an Unconfined AquifierCalculation of the Height of the Water Table in an Unconfined Aquifier

This model demonstrates COMSOL Multiphysics application to a benchmark case of steady-state fluid flow and transient solute transport through a vertical cross section in an unconfined aquifer. The model estimates the height of the...

Darcy - Brinkman ExampleDarcy - Brinkman Example

This example model characterizes a transition in flow regimes: slow flow in porous media quickens to a perforation in a well casing and ultimately moves into and up the well. Darcy’s law describes flow velocities at a distance from...

Failure of a Multilateral WellFailure of a Multilateral Well

An increasingly common technique to maximize oil production from deep wellbores is to emplace "open" multilateral wells, with multiple legs that branch off of a single conduit. The down side of leaving the well open is a high risk of...

Buoyant Darcy Flow: The Elder ProblemBuoyant Darcy Flow: The Elder Problem

This model of buoyancy flow driven by salt concentrations is a benchmark problem originally posed for heat flow by Elder (1967) and recast for solute transport by Voss and Souza (1987). It has been used to benchmark numerous density flow...


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