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Earth Science Module

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Peering into the Mouth of a VolcanoPeering into the Mouth of a Volcano

FEMLAB GmbH, Zürich, Switzerland
A group of scientists from three institutions are researching how to use information about electromagnetic fields in volcanoes to investigate and observe...

Contamination of Groundwater-Fed Springs in UgandaContamination of Groundwater-Fed Springs in Uganda

Royal Institute of Technology (KTH), Stockholm, Sweden
Dr. Roger Thunvik and Robinah Kulabako of the Royal Institute of Technology in Stockholm use COMSOL Multiphysics to define just how the water contamination...

Example Models

Electrokinetic and Magnetic Fields Inside a VolcanoElectrokinetic and Magnetic Fields Inside a Volcano

This example demonstrates how to model electrokinetic voltages generated by fluid flowing through porous media and the magnetic fields that result from the electric current. Here rainfall infiltrates into the porous conduit of a...

Perforated WellPerforated Well

Analysis of fluid flow into wells often begins with the assumption that the intake fluid is uniform along the entire length of wellbore. This assumption runs into trouble when applied to the modeling of perforated wells. When these wells...

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...

Reaction ChainReaction Chain

This model describes the simultaneous transport of three solutes in a chain reaction within a variably saturated flow field. Involved are advection, dispersion, sorption, biodegradation, decay, and volatilization. The parent solute...

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...

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...

Discrete FractureDiscrete Fracture

This example models free flow through a fracture in a block of porous media, where flow in the fracture is much faster than in the matrix block. The approach uses internal borders for modeling the free flow in 2D. The porous media flow is...

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...