Blog Posts Tagged Acoustics Module
Using the Domain Decomposition Solver for Thermoviscous Acoustics
Learn how to use the Domain Decomposition solver, a memory-efficient iterative algorithm with inherent parallelism on the geometric level, in COMSOL Multiphysics®.
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.
Optimizing a Tunable Organ Pipe for Ocean Acoustic Tomography
Read about a scientist from Teledyne Marine Systems who used simulation to improve a tunable organ pipe design and then compared the results to experimental tests.
Efficiently Calculating the Acoustic Transfer Impedance of a Perforate
Learn how to efficiently calculate the acoustic transfer impedance of a perforate in COMSOL Multiphysics®. (Hint: It involves applying a semitransparent boundary to the model.)
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…
ABB Minimizes Transformer Hum with Simulation
A team of engineers at ABB Corporate Research Center simulated the acoustic, electromagnetic, and mechanical behavior in their transformer system designs to mitigate noise pollution.
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.
Reducing Motorcycle Engine Noise with Acoustics Modeling
Vroom vroom! Or not? Researchers at Mahindra Two Wheelers, Ltd. in India used acoustics simulation to mitigate the engine noise in their motorcycle designs.
Quickly and Accurately Analyze Acoustic Reflections with Apps
Read about how you can design a computational modeling app to calculate the acoustic reflections off a water-sediment interface with both speed and accuracy.
Simulating a 3D Multilayered Graphene Biosensor Design
A team from the Polytechnic University of Bucharest designed and analyzed a 3D multilayered graphene biosensor with COMSOL Multiphysics®. Get the full story here.
Hear the Sound of an Organ Pipe Design with a Simulation App
Did you know that apps can generate audio results, not just visual data? The Organ Pipe Designer investigates the parameters behind an organ pipe configuration, then plays the resulting sounds!
How to Create Outstanding Sound Performance in Vehicles
Just because you’re in a car, doesn’t mean the sound quality should be subpar. A guest blogger demonstrates how to use acoustics simulation to optimize sound performance in vehicles.
Analyze Violin Tone and Volume with Multiphysics Modeling
What is the purpose of those f-shaped holes in a violin? As it turns out, both the body of a violin and shape of its holes greatly affect its tone and volume.
Multiphysics Simulation Provides Accurate Muffler Designs
A guest blogger from Lightness by Design, a COMSOL Certified Consultant, shares how multiphysics simulation provides accurate results when designing automotive mufflers.
Efficiently Study Noise Distribution in a House with an App
Simulation apps can be used by those with little knowledge of simulation to run their own acoustics analyses. Learn about one example, the One-Family House Acoustics Analyzer, here.
App: Ensuring the Efficiency of an Absorptive Muffler Design
We discuss a simulation app that lets engineers easily modify the dimensions of an absorptive muffler design, its ambient working conditions, and the material properties of the porous liner.
New Impedance Boundary Conditions for Acoustics Simulations
Get a comprehensive overview of the Impedance boundary conditions and how to use them for your acoustics simulations in COMSOL Multiphysics®.
Analyzing Forced Duffing Oscillations in Metal-Halide Lamps
2 independent researchers share insight into how they are optimizing the performance of metal-halide lamps using multiphysics simulation. Read the full story here >>
Simulating Acoustic Transfer Paths for Active Noise Control
A guest blogger from the FH Bielefeld University of Applied Sciences discusses simulating acoustic transfer paths with COMSOL Multiphysics® to mitigate noise in machinery designs.
Modeling Acoustic Orbital Angular Momentum
Get an introduction to acoustic orbital angular momentum and a demonstration of how to model it. Parr 2 of a blog series on modeling acoustophoretic forces.
A Thermoviscous Analysis of Acoustic Radiation Forces
Learn how to determine acoustic radiation forces, including thermoviscous and acoustophoretic effects, in the COMSOL® software.
Sweet Dreams with Diffusion Acoustics
Did you know that the acoustic diffusion equation is the quickest and easiest way to model high-frequency acoustics? Get an introduction to the concept of acoustic diffusion here.
Direct FSI Approach to Computing the Acoustic Radiation Force
In a follow-up to a previous blog post, we demonstrate a direct fluid–structure interaction approach for computing the acoustic radiation force in COMSOL Multiphysics®.
Using Deformations to Visualize Physical Motion
Postprocessing and visualization can help enhance your understanding of simulation results, and using plots to illustrate physical motion allows you to put everything into perspective.