The latest stories from COMSOL users are available in COMSOL News and Multiphysics Simulation.
Behind the Rumble and Roar of Mahindra Motorcycles
Optimization is a subtle and delicate art, especially when it comes to motorcycles. Regulatory requirements on pass-by noise must be met, while a loud, rumbling muffler is integral to the perception of bike power. Engineers at Mahindra Two Wheelers perform a balancing act when developing ... Read More
Light, Strong, and Defect-Free Laser Welding: Perfecting the Process for the Automotive Industry
Dozens of safety features in modern automobiles help reduce risk while driving, but regardless of their complexity, the most important obstacle between passengers and other cars is the frame. Safety standards require certain strengths for car frames, and much of this strength comes from ... Read More
Revving up Electrohydraulic Power Steering with Virtual Prototyping
In the automobile industry, the only thing faster than the cars that are produced is their design cycle. Validation and physical prototyping can be expensive and time consuming, but getting as close as possible to a final design before transitioning from virtual prototyping can speed up ... Read More
Engineering Perfect Puffed Snacks
The production of puffed rice, like many other types of food, is incredibly complicated and involves multiple interconnected types of physics: mass transport, phase transitions, and plastic deformation. Professor Ashim Datta of Cornell University is leading a team to simulate the puffing ... Read More
On the Cutting Edge of Hearing Aid Research
Nearly 20% of the United States population has some degree of hearing impairment. Despite the relative inconspicuousness and perceived simplicity of hearing aids, their development involves complex, time-consuming, and computationally expensive research. The hearing aid industry is in ... Read More
Music to Your Ears: New Transducers Meet Electrostatic Headphones
Electrostatic transducers offer enhanced clarity, less distortion, and a wider bandwidth than transducers in conventional dynamic-driver headphones, but they are only seen as high-end alternatives. The precise manufacturing requirements make electrostatic transducers prohibitively ... Read More
Manipulate and Control Sound: How Mathematical Modeling Supports Cutting-Edge Acoustic Metamaterials Research
Researchers at Duke University are using numerical modeling to develop metamaterial structures for acoustic cloaking. Steve Cummer, professor of electrical and computer engineering, explained that the acoustic metamaterial designs are optimized through numerical simulations, which are ... Read More
Improving Gas Pipeline Squeeze-Off Standards with Numerical Simulation
Gas Technology Institute (GTI), a leader in natural gas research, development, and training, investigated industry standards for squeeze-off length in gas pipelines to make pipes more accessible. Squeeze-off is a procedure that involves compressing a pipe to completely stop the flow of ... Read More
Multiphysics Software Models Mean Flow-Augmented Acoustics in Rocket Systems
Historically, difficulties in modeling and predicting combustion instability have led engineers to costly physical testing, or even to scrap the system entirely. Sean Fischbach and the research team at NASA used the COMSOL Multiphysics® software to model chamber gas dynamics and the ... Read More
Virtually Tuning an Automotive Audio System
HARMAN is a market leader in connected car setups and equips 80% of the world's luxury cars with premium audio systems. Each type of vehicle requires a unique setup, as factors such as placement and orientation of speakers, speaker packaging, and driver enclosure geometry greatly ... Read More