## The Nonparaxial Gaussian Beam Formula for Simulating Wave Optics

##### Yosuke Mizuyama June 26, 2018

Here’s your introduction to the nonparaxial gaussian beam formula, which is used for simulating wave optics problems in COMSOL Multiphysics®.

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### Analyzing a Centrifugal Pump Design with Frozen Rotor Approximation

##### Brianne Christopher June 25, 2018

Mechanical engineers can analyze the design of centrifugal pumps using the Frozen Rotor Approximation, which is available in the Mixer Module, an add-on to the CFD Module.

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### Modeling Copper Electrodeposition on a Circuit Board

##### Caty Fairclough June 21, 2018

Copper electrodeposition is used to manufacture PCBs. Here, we discuss modeling the electrodeposition of copper in the trench of a PCB.

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### Modeling a MOS Capacitor with the Semiconductor Module

##### Caty Fairclough June 20, 2018

MOS capacitors (MOSCAPs) contain 3 main parts: a semiconductor body or substrate, an insulator film, and a metal electrode (or gate). You can use the Semiconductor Module to model MOSCAP designs.

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### Happy Birthday, Blaise Pascal

##### Caty Fairclough June 19, 2018

Blaise Pascal was a mathematician who wanted to make mathematical calculations easier. His work in projective geometry led to what is now known as Pascal’s theorem.

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### How to Perform a Nonlinear Distortion Analysis of a Loudspeaker Driver

##### Kirill Shaposhnikov June 18, 2018

For a thorough and complete analysis of a loudspeaker driver design, acoustics engineers need to perform nonlinear time-domain studies in addition to frequency-domain studies.

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### Fueling Up for Autonomous Driving with Optimized Battery Designs

##### Brianne Christopher June 14, 2018

What good are fully autonomous vehicles if they run on fuel? To develop hybrid and electric autonomous vehicles, we need to design efficient and optimized battery management systems.

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### Your Guide to Meshing Techniques for Efficient CFD Modeling

##### Christian Wollblad June 13, 2018

Learn how to use a variety of meshing tools for your CFD analyses, including mapped mesh, unstructured quad mesh, triangular mesh, tetrahedral mesh, swept mesh, boundary layer mesh, and more.

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### How to Use the Cluster Sweep Node in COMSOL Multiphysics®

##### Pär Persson Mattsson June 12, 2018

Keep your cluster admin happy by using the Cluster Sweep node in COMSOL Multiphysics® to optimize the parallelization of parametric computations on clusters.

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### How to Set Up a Mesh in COMSOL Multiphysics® for CFD Analyses

##### Christian Wollblad June 11, 2018

As a flow mechanics specialist preparing a mesh for CFD analysis, the geometry supplied by a CAD team is often exactly what you do not want. So, what do you do?

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### Happy Birthday, Henry Darcy

##### Thomas Forrister June 10, 2018

Henry Darcy was a civil engineer whose study of fluid dynamics led to the formulation of the equation now known as Darcy’s law. It also helped supply his small town in France with drinking water.

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