Application Gallery

The Application Gallery features COMSOL Multiphysics tutorial and demo app files pertinent to the electrical, mechanical, fluid, and chemical disciplines. You can download ready-to-use tutorial models and demo apps with step-by-step instructions for how to create them yourself. The examples in the gallery serve as a great starting point for your own simulation work.
Use the Quick Search to find tutorials and apps relevant to your area of expertise. Log in or create a COMSOL Access account that is associated with a valid COMSOL license to download the MPH-files.

Magnetic Drug Targeting

Current research on methods to target chemotherapy drugs in the human body includes the investigation of biocompatible magnetic nanocarrier systems, for example magnetic liquids such as ferrofluids. This model investigates an external magnetic field and its interaction with blood flow containing a magnetic carrier substance. The model is based on the Maxwell and Navier-Stokes equations, where a ...

Steady-State 1D Heat Transfer with Radiation

The example shows a 1D steady-state thermal analysis including radiation to a prescribed ambient temperature. The temperature field from the solution of this benchmark model is compared with a NAFEMS benchmark solution.

Stresses in a Pulley

The stresses in a pulley connected to an engine that drives another pulley are studied in this model. A parametric analysis is conducted in order to study how the rotational speed affects the stress distribution in the pulley. The power at the pulley shaft remains constant, the moment (defined by the ratio of the power by the rotational speed) will thus decrease with increased speed. This ...

Virtual Operation on a Wheel Rim Geometry

This tutorial shows how to perform virtual geometry operations on an imported CAD geometry. These virtual operations, such as form composite entities or ignore entities can help to improve the mesh and reduce the total element number.

Pacemaker Electrode

This model illustrates the use of COMSOL Multiphysics for modeling of ionic current distribution problems in electrolytes, in this case in human tissue. The problem is exemplified on a pacemaker electrode, but it can be applied in electrochemical cells like fuel cells, batteries, corrosion protection, or any other process where ionic conduction takes place in the absence of concentration ...

Solution of the Schrödinger Equation for the Hydrogen Atom

This example shows how to compute energy levels and electron orbits for the hydrogen atom. It models the atom as a 1-particle system using the stationary Schrödinger equation. Before solving this problem in COMSOL Multiphysics, the dimension of the problem is firstly reduced from three to two by using cylindrical coordinates (rho, phi, z). The model is then set up using the PDE Coefficient ...

Steady-State 2D Heat Transfer with Conduction

This example shows a 2D steady-state thermal analysis including convection to a prescribed external (ambient) temperature. It is given as a benchmarking example. The benchmark result for the target location is a temperature of 18.25 C. The COMSOL Multiphysics model, using a default mesh with 556 elements, gives a temperature of 18.28 C. Successive uniform refinements show a temperature of ...

Eigenvalue Analysis of a Crankshaft

This model describes a modal analysis of a crankshaft. The pistons’ reciprocating movement is transferred to the crankshaft through connecting rods by means of crankshaft throws. The forces, torques, and bending moments, which are highly variable both in time and space, subject the crankshaft to very high and complex loading. The crankshaft design must therefore incorporate careful and ...

The Shallow Water Equations

The Shallow Water equations are frequently used for modeling both oceanographic and atmospheric fluid flow. Models of such systems lead to the prediction of areas eventually affected by pollution, coast erosion and polar ice-cap melting. Comprehensive modeling of such phenomena using physical descriptions such as the Navier-Stokes equations can often be problematic, due to the scale of the ...

A 3D Model of a Diesel Particulate Filter

Several factors influence a diesel particulate filter’s (DPF) efficiency and durability. Important issues include the removal of soot particles from the filter membranes and the influence of thermal stress on the ceramic structure, stress that arises during repeated operating cycles. Mathematical modeling provides a powerful tool for investigating such critical parameters under a wide range of ...

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