COMSOL Examples

COMSOL is a multiphysics simulation software with application areas in electrical, mechanical, fluids, acoustics and chemical. COMSOL Multiphysics is a simulation platform that encompasses all of the steps in the modeling workflow — from defining geometries, material properties, and the physics that describe specific phenomena to solving and postprocessing models for producing accurate and trustworthy results. COMSOL uses numerical schemes like finite element method, boundary element method, damped Newton method, direct and iterative solvers to provide accurate solutions.

Rescale's platform can be used to conveniently run COMSOL simulations across many cores to reduce compute time drastically. It provides additional functionality like easy connection to COMSOL Mulitphysics Server.

Kármán Vortex Street Example

An unsteady simulation of flow past a cylinder using the COMSOL Multiphysics CFD module. The Reynolds number based on the cylinder diameter is 100 and is low enough for a Kármán Vortex Street to form. This model and documentation is available directly from COMSOL.

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Simulation Code COMSOL Multiphysics v5.4.0.246
Analysis Type CFD
Description CFD simulation of flow past a cylinder using COMSOL Multiphysics
Suggested Hardware Onyx / 4 cores
Command
comsol -clustersimple -f $HOME/machinefile batch -inputfile cylinder_flow_5.2.mph
Estimated Run Time 4 minutes
Previous versions Import Job Setup v5.2a


Convection Cooling of Circuit Boards Example

A simulation of a circuit board undergoing fan cooling (forced flow of air). This model and documentation is available directly from COMSOL.

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Simulation Code COMSOL Multiphysics v5.4.0.246
Analysis Type Thermal Analysis
Description Forced flow over circuit board model using COMSOL Multiphysics
Suggested Hardware Onyx / 8 cores
Command
comsol -clustersimple -f $HOME/machinefile batch -inputfile circuit_board_forced_3d.mph
Estimated Run Time 15 minutes
Previous versions Import Job Setup v5.2a


Electric Signals Example

A simulation on the propagation of electrical signals within the heart. The heart is simplified and modeled by 2 internal semi spherical cavities to represent 2 chambers. This model and documentation is available directly from COMSOL.

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Simulation Code COMSOL Multiphysics v5.4.0.246
Analysis Type Electric Signal
Description Simulation of electric signal propagation in a model heart using COMSOL Multiphysics
Suggested Hardware Onyx / 4 cores
Command
comsol -clustersimple -f $HOME/machinefile batch -inputfile heart_electrical.mph
Estimated Run Time 5 minutes
Previous versions Import Job Setup v5.2a


Micromixer Example

A simulation of flow through a micromixer. The micromixer forces lamination of streams and mixing occurs through diffusion. This model and documentation is available directly from COMSOL.

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Simulation Code COMSOL Multiphysics v5.4.0.246
Analysis Type CFD
Description CFD through a micromixer using COMSOL Multiphysics
Suggested Hardware Gold / 4 cores
Command
comsol -clustersimple -f $HOME/machinefile batch -inputfile micromixer_cluster.mph
Estimated Run Time 14 minutes
Previous versions Import Job Setup v5.2a


Thermal Behavior of a Computer Power Supply Unit Example

A model of a computer power supply unit (PSU). The PSU is cooled through airflow provided by a cooling fan. This model and documentation is available directly from COMSOL.

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Simulation Code COMSOL Multiphysics v5.4.0.246
Analysis Type Thermal Analysis
Description Model of PSU undergoing cooling using COMSOL Multiphysics
Suggested Hardware Onyx / 8 cores
Command
comsol -clustersimple -f $HOME/machinefile batch -inputfile electronic_enclosure_cooling.mph
Estimated Run Time 44 minutes
Previous versions Import Job Setup v5.2a


Bracket Optimization Example

A model optimizing the parameters of natural frequency and statically loaded stress. This model and documentation is available directly from COMSOL.

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Simulation Code COMSOL Multiphysics v5.4.0.246
Analysis Type Stress Analysis and Optimization
Description Model of bracket optimization using COMSOL Multiphysics
Suggested Hardware Onyx / 4 cores
Command
comsol -clustersimple -f $HOME/machinefile batch -inputfile multistudy_bracket_optimization.mph
Estimated Run Time 11 minutes
Previous versions Import Job Setup v5.2a