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Efficiently Verify Electric Fields Outside Electrical Installations with Apps
Electrical installations are required to have their surrounding electric fields fall within certain levels. A simulation application can be used to verify measurements and adhere to standards.
How to Couple a Full-Wave Simulation to a Ray-Tracing Simulation
Learn how to couple full-wave and ray-tracing simulations in a model with a nonhomogenous domain around the antenna. Part 4 of a series on multiscale modeling in high-frequency electromagnetics.
Using the Discontinuous Galerkin Method to Model Linear Ultrasound
You can easily model acoustically large problems, like linear ultrasound, with a predefined physics interface that uses a memory-efficient approach called the discontinuous Galerkin method.
Finding the Best Coal Arrangement for Even Heat in a Grill
Pizza on the grill? It’s actually quite delicious. Here, we use heat transfer modeling to determine how the grill’s coals should be arranged for even heating.
How to Couple Radiating and Receiving Antennas in Your Simulations
Learn how to couple radiating and receiving antennas in your simulations by using the scattered field formulation. Part 3 of a series on multiscale modeling in high-frequency electromagnetics.
2 Methods for Simulating Radiated Fields in COMSOL Multiphysics®
2 ways to model radiated fields: the Far-Field Domain node and the Electromagnetic Waves, Beam Envelopes interface. Part 2 of a series on multiscale modeling in high-frequency electromagnetics.
How to Model an Anechoic Coating
Modeling an anechoic coating involves finding the smallest unit cell, truncating the geometry, and analyzing the wave diffration. The COMSOL® software includes predefined interfaces to do so.
How to Assign Fluid Pressure in CFD Simulations
What is the difference between relative and absolute pressure? Why does COMSOL Multiphysics® use relative pressure to solve CFD problems? Get answers here…
Simulation Delivers Reliable Results for Piezoresistive Pressure Sensors
With COMSOL Multiphysics®, you can easily couple multiphysics simulations to test MEMS device performance. Take a look at one example that showcases such capabilities.
Study Contaminant Removal in Membrane Dialysis Devices with an App
We discuss treating renal failure with hemodialysis, analyzing contaminant concentration in a membrane dialysis device, and optimizing a membrane dialysis device with a numerical modeling app.
Can a Stiffness Be Negative?
Have you ever encountered an FEM formulation where the force does not monotonically increase with displacement? We discuss some examples of this behavior: negative stiffness.
How to Use Acoustic Topology Optimization in Your Simulation Studies
Today, guest blogger René Christensen of GN Hearing discusses the importance of acoustic topology optimization and how to apply it in COMSOL Multiphysics. Topology optimization is a powerful tool that enables engineers to find optimal solutions to problems related to their applications. Here, we’ll take a closer look at topology optimization as it relates to acoustics and how we optimally distribute acoustic media to obtain a desired response. Several examples will further illustrate the potential of this optimization technique.
Guidelines for Equation-Based Modeling in Axisymmetric Components
Here’s your comprehensive guide to equation-based modeling for problems with cylindrical coordinates and axisymmetric components.
Reduce the Fan Noise of a Turbofan Aeroengine with Simulation
Noisy turbofan engines are often used to power commercial airplanes. You can reduce their noise pollution with the help of acoustics modeling…
Phase Space Distributions and Emittance in 2D Charged Particle Beams
We discuss the concepts of phase space and emittance as they apply to the release of ions or electrons in beams. Part 2 of a series on phase space distributions in beam physics.
Applying a Hybrid Approach to Fracture Flux Conservation
A guest blogger from Boffin Solutions, LLC, a COMSOL Certified Consultant, discusses using a hybrid approach to calculate fracture flux in thin structures with the COMSOL® software.
Benchmark Shows Valid Results for a Piezoelectric Transducer Design
We walk you through the Composite Piezoelectric Transducer tutorial model: a benchmark model for ultrasonic transducer simulation and good starting point for simulations of SAW and BAW filters.
Using Simulation to Ensure the Cooling Efficiency of Refrigerated Trucks
To transport food, vaccines, and other perishables, refrigerated trucks are designed to maintain a cold temperature. Using simulation, researchers analyzed the cooling efficiency of such trucks.
Evaluating Microphones and Transducers with Simulation
Research teams at Brüel & Kjær, an industry leader in sound and vibration measurement, use multiphysics simulation to model their microphone and transducer designs. Read the full story.
How to Make Boundary Conditions Conditional in Your Simulation
In some modeling scenarios, you may want to apply a boundary condition to only part of the geometrical boundary or only under certain conditions. Learn how to do so here.
User Feedback Powers COMSOL Multiphysics® Version 5.2a
The release of COMSOL Multiphysics® software and COMSOL Server™ product version 5.2a includes new features and functionality based on feedback from our users. Get an overview.
Studying Manifold Microchannel Heat Sinks with Simulation
Manifold microchannels (MMC) can help improve the performance of cooling components in consumer electronics. Simulation can be used to study and optimize MMC heat sink designs.
How to Choose Between Boundary Conditions for Coil Modeling
3 approaches for truncating a domain when modeling an EM coil in free space: the Magnetic Insulation and Perfect Magnetic Conductor boundary conditions as well as the infinite element domain.
Modeling the Thermal Curing Process
Polymerization of a thermoset resin is one example of thermal curing, a process in which temperature-induced chemical change occurs in a material.