Latest Posts
Analyze Your Simulation Results with Projection Operators
Remember making shadow puppets on the wall with your hands? Projection operators, a method for analyzing your simulation data, work in a similar way. Let us explain…
Implementing a Simple Temperature Controller with a Component Coupling
Learn how to implement a simple temperature controller (a feedback loop) in a thermal process simulation in COMSOL Multiphysics®. We demonstrate with a silicon wafer example >>
Which Current Distribution Interface Do I Use?
See the different current distributions with a wire electrode example to help you choose between the current distribution interfaces in COMSOL Multiphysics® for your electrochemical simulations.
Theory of Current Distribution
Here, we discuss one of the building blocks that make up hybrid parallel computing, namely shared memory computing, as well as when and how to use shared memory with COMSOL Multiphysics®.
Intro to the What, Why, and How of Shared Memory Computing
A couple of weeks ago, we published the first blog post in a Hybrid Modeling series, about hybrid parallel computing and how it helps COMSOL Multiphysics model faster. Today, we are going to briefly discuss one of the building blocks that make up the hybrid version, namely shared memory computing. Before that, we need to consider what it means that an “application is running in parallel”. You will also learn when and how to use shared memory with COMSOL.
Rocket Innovations for Private Space Flight
Did you know that up until the 1920s, rockets were powered by solid propellants and oxidizers? Enter the invention of the liquid-fuel rocket. Learn more about innovations in modern rocketry.
Simulating Thermal Performance in Windows
Windows must be able to keep heat out during the summer and heat in during the winter in order to keep the inside of a building at a comfortable temperature, a process called thermal insulation.
Computing and Controlling the Volume of a Cavity
See a method for modeling enclosed volumes containing incompressible fluids (under the additional assumption that the momentum and energy transfer via the fluid is small) in COMSOL Multiphysics®.
Improving Bioreactor Performance with COMSOL Multiphysics
A guest blogger from Continuum Blue gives an overview of what the consultancy can do using simulation for their biomedical engineering clients.
Size Parameters for Free Tetrahedral Meshing in COMSOL Multiphysics
COMSOL Multiphysics® has 9 built-in size parameter sets when meshing. In this blog post, we’ll discuss size parameters for 1 of these sets: free tetrahedral meshing.
Overview of Integration Methods in Space and Time
Integration is an important mathematical tool for numerical simulations. For example, partial differential equations are usually derived from integral balance equations.
Using the General Extrusion Coupling Operator in COMSOL: Dynamic Probe
Consider a laser heating example with a moving heat source (laser) and moving geometry. How can you use the General Extrusion coupling operator to probe a solution at a point in the geometry?
Modeling a Displacement Ventilation System
There are 2 different types of ventilation systems: mixing ventilation and displacement ventilation. Displacement ventilation is mainly found in offices, schools, and other public spaces.
Hybrid Parallel Computing Speeds Up Physics Simulations
Remember 20 years ago, when the TOP500 list was dominated by vector processing supercomputers equipped with up to a thousand processing units? Let’s take a walk through history to the future.
Multiphysics Analysis of Advanced Materials: Ceramic Matrix Composites
A guest blogger from AltaSim Technologies discusses ceramic matrix composites and how to accurately analyze the production of such an advanced material.
Modeling Electromagnetic Waves and Periodic Structures
Oftentimes, it is of interest to model an EM wave (light, microwaves) incident upon periodic structures, such as diffraction gratings, metamaterials, and frequency selective surfaces.
Modeling PSU Cooling with COMSOL
A forced convection cooling system, such as a PSU, is used for removing excess heat produced by electrical computer components. You can model this device in COMSOL Multiphysics®.
Solving Algebraic Field Equations
COMSOL Multiphysics® is commonly used to solve PDEs, ODEs, and initial value problems. However, did you know that you can also solve algebraic and even transcendental equations?
New Technology Advancements for Indoor Navigation
Global position systems, more commonly known as GPS, make it easy to navigate from place to place. But what about navigating inside an actual building? Indoor navigation makes this possible.
Differentially Pumped Vacuum Systems for Spectroscopic Imaging
X-ray photoelectron spectroscopy is an imaging technique used extensively in R&D to characterize the chemical and electronic properties at the surface of a material. Learn about this technique.
Parameterizing the Dimensions of Imported CAD Files
Learn how to modify an imported geometry with some clever usage of the Deformed Geometry interface in COMSOL Multiphysics®.
Simulating an RF MEMS Switch
An RF MEMS switch is typically made up of a micromechanical bridge or cantilever, a substrate, and an electrode or dielectric layer. You can design such a device using RF simulation.
Conjugate Heat Transfer
Get an introduction to the concept of conjugate heat transfer and see some of its applications and modeling considerations.
Red Blood Cell Separation from a Flow Channel
Lab-on-a-chip technology can be used to separate red blood cell via magnetophoresis — for example, motion induced by magnetic fields. Simulation can be used to optimize such devices.