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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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Inertial Manipulation of Bubbles in Rectangular Microfluidic Channels

P. Hadikhani [1], S. Mohammad H. Hashemi [1], G.Balestra [2], L. Zhu [3], M. A. Modestino [4], F. Gallaire [2], D. Psaltis [1],
[1] Optics Laboratory, School of Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
[2] Laboratory of Fluid Mechanics and Instabilities, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
[3] Department of Mechanical and Aerospace Engineering, Princeton University, US
[4] Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, US

Bubbles trajectories in microchannel laminar flow can be controlled with fluidic forces. This effect finds applications in the field of electrochemical engineering. In this study, we investigate the bubble motion at moderate Reynolds number (1 En savoir plus

Modeling Internal Erosion Processes in Soil Pipes

J. L. Nieber [1], G. V. Wilson [2], G. A. Fox [3],
[1] University of Minnesota, St. Paul, MN, USA
[2] United States Department of Agriculture - Agricultural Research Service National Sedimentation Laboratory, Oxford, MS, USA
[3] North Carolina State University, Raleigh, NC, USA

The erosion of the interior of soil pipes is an important process in the fields of geomechanics and geomorphology. Soil pipes can form in water holding structures like dams and levees, and water flow through these structures becomes concentrated into the soil pipes as they evolve by the ... En savoir plus

Impact of Frictional Heat Generation upon Temperature of Sesame Paste Flow through Screw-expeller

Rajaratnam Shanthini¹, S.A.V. Kumar ², S.M.D.T. Sandaruwan¹
¹University of Peradeniya, Peradeniya, Sri Lanka
²Texlan Center (Pvt) Ltd, Minuwangoda, Sri Lanka

Temperature of sesame paste flowing through a screw-expeller was studied. Screw-expeller used consisted of a rotating tapered screw and a constant-inner-diameter stationary barrel. Since screw diameter was much larger than the sesame paste thickness, an unwrapped model was employed with ... En savoir plus

Acoustic Upside-Down Levitator with a Solid Sample

L. Holitzner [1], E. G. Lierke [2],
[1] Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
[2] tec5 AG, Oberursel, Germany

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). ... En savoir plus

Simulation of Production Processes using the Multiphysics Approach: The Electrochemical Machining Process

R. van Tijum
Dr.
Advanced Technology Center, Philips Consumer Lifestyle, Drachten, The Netherlands

Redmer van Tijum studied Applied Physics at the University of Groningen. In 2006, he received his PhD title on ‘Interface and surface roughness of polymer metal laminates’ in the field of Material Science at the University of Groningen. After that he became research and development ... En savoir plus

Transient Process Simulation of Heat Transfer in Laser Beam Welding with an Equivalent Heat Source

A. Artinov [1], M. Bachmann [1], M. Rethmeier [1],
[1] BAM Federal Institute for Material Research and Testing, Berlin, Germany

The Finite Element Method (FEM) has become an established numerical tool used for different academic and industrial purposes. It allows the prediction of weld pool geometry, thermal cycle, final distortion and residual stress field during and after fusion welding. The capability of the ... En savoir plus

Dispersion Analysis in Coaxial Cables at High Frequencies

S. C. Hegde[1]
[1]VIT University, Vellore, Tamil Nadu, India

The coaxial cable is one of the most commonly used bandwidth limited signal transmission line.Dispersion is a signal distortion phenomenon which arises due to frequency dependence of phase velocity of signal components. This phenomenon was explained through time domain approach by ... En savoir plus

Numerical Modeling of Cold Crucible Induction Melting

I. Quintana[1], Z. Azpilgain[1], D. Pardo[2], and I. Hurtado[1]
[1]Mechanical and Industrial Production Department, Faculty of Engineering, Mondragon Unibertsitatea, Loramendi 4, Mondragon 20500 Gipuzkoa, Spain
[2]Department of Applied Mathematics, Statistics, and Operational Research, University of the Basque Country (UPV/EHU), Leioa, Spain, and IKERBASQUE (Basque Foundation for Sciences), Bilbao, Spain

This paper describes a numerical solution method for the simulation of a cold crucible induction melting (CCIM) process involving the coupling of electromagnetic, temperature and turbulent velocity fields. During the CCIM process, the metal charge is contained on a water cooled ... En savoir plus

Effects of Thermal and Electro-Osmotic Flux on Grounding Electrodes

I. Ferreira de Rezende Costa¹, M. C. Barbosa¹, A. De Oliveira Costa Neto²
¹UFRJ, Rio de Janeiro, RJ, Brazil
²UFVJM, Teófilo Otoni, MG, Brazil

Electricity has become the main source of heat, power, and light used in the modern world. Much of the technological advances made over the last few decades are due to electrical energy. One of the essential components of the electrical system is the grounding network. The continuous ... En savoir plus

A Dual Continuum Model for Groundwater Flow in Karst Aquifers

R. Painter[1], J. Harris[1], T. Byl[1], L. Sharpe[1]
[1]Tennessee State University, Nashville, TN, USA

In karst terrain, the interaction between the fast moving, highly turbulent conduit flow and the slow moving, laminar flow through porous media is largely unknown. Yet the dual nature of the karst system impacts the residence time of solutes in the groundwater supplies of over 25% of the ... En savoir plus

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