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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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2D and 3D Simulation on Thermal Flow Around the Human Body

J. Xu [1, 2], A. Psikuta [1], J. Li [2], S. Annaheim [1], R. M. Rossi [1],
[1] Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St. Gallen, Switzerland
[2] Protective Clothing Research Center, College of Fashion and Design, Donghua University, Shanghai, China

Indoor thermal comfort has become a hot topic as energy saving raises the public attention. Accurate thermal flow prediction in an indoor environment and its influence on human provides a critical background to the development of comfort-providing yet energy-saving solutions. This study ... Read More

Boundary Element Method Simulation of Tonal Noise from a Wind Turbine

B. Marmo [1],
[1] Xi Engineering Consultants, UK

Modeling the acoustic output of wind turbines presents extreme simulation challenge due to the geometry of rotors and towers requiring very large mesh size with large volumes of empty space between blades. In this paper, the structural-acoustic finite element models that were previously ... Read More

Numerical Modeling of Viscous Damping for Acoustic Resonances of Suspended Microparticles

T. Baasch [1], J. Fankhauser [1], J. Dual [1],
[1] ETH Zurich, Zurich, Switzerland

Introduction In this study, we investigate the damping mechanisms of particle resonances in acoustofluidic systems using the finite element framework of COMSOLTM. In the field of acoustic micro-manipulation, pressure waves are used for the contactless handling of micro-meter sized ... Read More

Analysis of Heat Transfer From Human Body and Effect of Clothing Surface on Heat Transfer Mechanism

A. Joshi [1], A. Psikuta [1], M.-A. Bueno [2], S. Annaheim [1], R. M. Rossi [1],
[1] Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
[2] Université de Haute Alsace, Laboratoire de Physique et Mécanique Textiles (LPMT EA 4365), Mulhouse, France

Heat transfer from human body to the environment through clothing layer depends on many factors such as environmental conditions, thermal properties of clothing and size and shape of enclosed air layers (air layers between body surface and clothing). In clothing science, most numerical ... Read More

Heat and Moisture Transport in Wooden Bearings of Monumental Buildings

H. Schellen [1], M. Spierings [2], J. van Schijndel [3],
[1] Eindhoven University of Technology, The Netherlands
[2] DPA Cauberg-Huygen, The Netherlands
[3] ASML, The Netherlands

Currently insulation has been and will in future be applied to many buildings. This proves to be a challenge for monumental or old buildings. Mostly insulation has to be applied at the interior side of a building. That is why hygro-thermal bridges are inevitable. A wooden beam end beared ... Read More

Multiphysics Simulation of a High Frequency Acoustic Microscope Lens

O. Tommiska [1], J. Mäkinen [1], J. Hyvönen [1], A. Meriläinen [1], A. Salmi [1], E. Hæggström [1],
[1] Department of Physics, Division of Materials Physics, University of Helsinki, Helsinki, Finland

High frequency ultrasound (100-1000 MHz) has been used in microscopy since the 1970s. The main imaging component, the acoustic lens, is commercially available. The resolution, working distance, and focal length depend on the structure of a lens, which is unique for each produced lens. ... Read More

A Model of Concrete Carbonation Using COMSOL Multiphysics®

B. Chine' [1], R. Cuevas [2], R. Jimenez [1], A. Rodríguez [1],
[1] Costa Rica Institute of Technology, School of Materials Science and Engineering, Cartago, Costa Rica
[2] Costa Rica Institute of Technology, School of Construction Engineering, Cartago, Costa Rica

In the construction sector the concrete and the steel bars represent still the key components, although they are very vulnerable by the atmospheric agents, as in the case of their degradation caused by corrosion. The study of the concrete carbonation, due to the CO2 which permeates the ... Read More

Alternative Implementation of a Porous Media Model for Simulating Drying of Heated Concrete

B. Weber [1],
[1] Empa - Swiss Federal Laboratories for Materials Testing and Research, Duebendorf, Switzerland

In a previous publication [1], a porous media model for simulating the pressure development in heated concrete has been presented, which is based on the classical formulation given in [2]. However this formulation has some drawbacks, which are addressed in a new implementation. The ... Read More

Solar Radiation Effects on the Epoxy Adhesive Temperature Used to Bond CFRP to Concrete Beams

M. Breveglieri [1], B. Weber [1], C. Czaderski [1],
[1] EMPA - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland

The service temperature of epoxy-based adhesive used for structural strengthening of civil structures such as road bridges is an important issue and has to be taken into account when, for example, bonded CFRPs(Carbon Fiber Reinforced Polymer) strips are exposed to solar radiation and ... Read More

Tunable Flat-Plate Absorber Design for Active Sound Absorption

R. Boulandet [1], K. O. Bjornsson [1], H. Lissek [1],
[1] Ecole Polytechnique Fédérale de Lausanne, Switzerland

Noise reduction at low frequencies is a major issue in many workspaces and indoor public places. Unlike mid- and high-frequency noise, low frequency noise is less attenuated by using conventional sound absorbing materials. This communication proposes an electro-mechano-acoustic absorber ... Read More

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