The Application Gallery features COMSOL Multiphysics® tutorial and demo app files pertinent to the electrical, structural, acoustics, fluid, heat, and chemical disciplines. You can use these examples as a starting point for your own simulation work by downloading the tutorial model or demo app file and its accompanying instructions.
Search for tutorials and apps relevant to your area of expertise via the Quick Search feature. Note that many of the examples featured here can also be accessed via the Application Libraries that are built into the COMSOL Multiphysics® software and available from the File menu.
This model computes the particle flux, number density and pressure on the surface of a plate that rotates in a highly directional molecular flow. The results obtained are compared with those from other, approximate, techniques for computing molecular flows. Read More
This example of turbulent flow in a partially baffled turbulent mixer with a three-bladed impeller shows how to set up the Rotating Machinery, Turbulent Flow interfaces from the Mixer Module with a Level Set method for free surface flow in a rotating geometry. A time-dependent simulation ... Read More
An electrostatically actuated MEMS resonator is simulated. The device is driven by an AC + DC bias voltage applied across a parallel plate capacitor. In this example, the pull-in and pull-out voltages of the resonator are computed. This is done via a quasi-static analysis of the ... Read More
In a polymer electrolyte membrane fuel cell (PEMFC), water is produced at the cathode. The cell is also fed with water vapor via the inlet gas streams, in order to keep the polymer electrolyte membrane humidified. If the water partial pressure in the gas phase exceeds the vapor ... Read More
This example simulates electroplating of a printed circuit board (PCB) in 3D using the Secondary Current Distribution interface. In order to achieve thickness uniformity across the PCB, a dummy pattern is included in the design, along with an aperture in the electroplating bath. Read More
When several components are to be electroplated they are typically mounted on a rack in the electroplating bath. An important aspect is then achieving a uniform thickness of the plated layer for all components mounted on the rack. This example model allows for investigating the effect ... Read More
This tutorial models the cathodic protection of an oil rig structure during a time period of 15 years. As a result of the consumption of the sacrificial anodes, the protective capabilities system are reduced over time. The anode shape change in the model is defined by using the Level ... Read More
This model utilizes a continuation solver to efficiently compute the current–voltage characteristics of a corona discharge generated by a wire-to-wire configuration. It provides a flexible framework that can be easily adapted to study other discharge configurations and types. Read More
In the chemical and biochemical industries, for instance in fermentation processes, reactors having well-mixed conditions and liquid level control are common. This example shows modeling of a 0D ideal system of tank reactors in series with controlled feed inlet and product outlet ... Read More
As reactant monomer converts into polymer chains, the density of the reacting mixture often changes notably. In this example you will look at how this effect impacts the total production of polymer in a process. The liquid phase polymerization takes place in a semibatch reactor, where ... Read More