See How Multiphysics Simulation Is Used in Research and Development
Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.
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This article reports the design of a high-power ultrasound system, capable of emitting acoustic radiation at 20kHz with SPL peaks up to 160dB at a distance of up to 1m. The main problem of high power airborne ultrasonic systems lies in the acoustic impedance mismatch between the radiator ... Read More
Condenser microphones will have an electrical output for any displacement of the membrane relative to the back plate, which is usually bound to the microphone housing. For the typical use case, a pressure input will create a pressure difference across the membrane, which causes a ... Read More
Ultrasonic flow-cell reactors are used for many industrial applications, where fluid substrate is sonicated in a small region, where very high ultrasonic acoustic power is present. The electromechanical transducer (converter) that drive the sonotrode inside the flow-cell is designed in ... Read More
Introduction: The endothelial cells (ECs) in the blood brain barrier (BBB) are disrupted with age, genetic predisposition, or stroke and can lead to vascular cognitive impairment and dementia (VCID). Current treatments involve opening the BBB with high-frequency-ultrasound to deliver ... Read More
Finite element modelling of surgical transducers has been performed and is described. Ultrasonic transducers vibrating at around 25 kHz are used in orthopaedic surgery to cut bone. The high acoustic impedance of the metal blades used in these devices couples energy more efficiently to ... Read More
Ultrasound transducers are regularly used in medical clinics but their performance is known to deteriorate over time. Causes of this image quality degradation can include delamination between layers, physical breakage of components, short circuits and weakening crystals. Regular ... Read More
Introduction: Acoustic levitators are used to levitate small samples (ca. 0.01 - 6 mm) at a stable position in a gas or liquid environment. Acoustic levitators were first developed und used for experiments in space (1970s, by NASA / ESA), the application later became terrestrial (1990s). ... Read More
Within the ENHANCE European project, hybrid energy harvesters have to be designed and developed to supply small and autonomous sensors in automobiles. The focus of this work is particularly related to the harvesting of energy from the vibration of the vehicle and from the high ... Read More
Fouling accumulation in pipelines is a known problem in industry which is currently treated by mechanical, hydraulic and chemical means. Each requiring a halt in the production to carry out the procedure. Industry requires a method that is non-invasive and can be used in-situ, Ultrasonic ... Read More
The semiconductor industry is always looking for early anticipation of manufacturing risk, pushing the development of Computer Aided Engineering (CAE) modeling of processes. Robust Chip-Package Interaction requires a deep understanding of thermo-mechanical stresses imposed during the ... Read More