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Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Consultez les proceedings de la Conference COMSOL 2024

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Simulation Study of High Frequency Pulsed DC Discharges in Nitrogen

L. Tong [1],
[1] Keisoku Engineering System Co., Ltd., Tokyo, Japan

Pulsed DC technology has led to the design of cost-effective deposition systems and to improved film properties, compared to conventional rf systems. In this work, a two-dimensional finite element model is used to investigate the high frequency pulsed DC discharges in nitrogen. The study ... En savoir plus

Embedded Microfluidic/Thermoelectric Generation System for Self-Cooling of Electronic Devices

R. Kiflemariam[1], H. Fekramandi[1], C. Lin[1]
[1]Department of Mechanical & Materials Engineering, Florida International University, Miami, FL, USA

A 3D electro-conjugate heat transfer model was made to study an embedded microfluidic/TEG system (μF/TEG) system. An innovative embedded microfluidic/TEG system (μF/TEG) system is proposed which enables a device to be able to provide power to its cooling system eliminating external power ... En savoir plus

A Lesson in Cartilage Therapy: Do Chondrocytes Utilize Mechanical Energy from Exercise for Cell Maintenance and Growth?

A. Miller [1], H. Viljoen [1], A. Chama [2], T. Louw [2],
[1] Department of Chemical and Biomolecular Engineering, University of Nebraska - Lincoln, Lincoln, NE, USA
[2] Department of Chemical Engineering, Stellenbosch University, Stellenbosch, South Africa

Using COMSOL Multiphysics® Acoustics Module: Chondrocytes modeled attached to a plane (to mimic in vivo constraints) are shown to resonate near 5MHz. At resonance, the mechanical energy density in the nucleus is two times higher than in the cytoplasm. Impact exercise is modeled as ... En savoir plus

Modeling Interface Response in Cellular Adhesion

G. Megali[1], D. Pellicanò[1], M. Cacciola[1], F. Calarco[1], D. De Carlo[1], F. Laganà[1], and F.C. Morabito[1]

[1]DIMET Department, Faculty of Engineering, University “Mediterranea” of Reggio Calabria, Reggio Calabria, Italy

Constitutive properties of living cells are able to withstand physiological environment as well as mechanical stimuli occurring within and outside the body. We examined fluid flow and Neo-Hookean deformation related to the rolling effect. A mechanical model to describe the cellular ... En savoir plus

The Application of micro-and nano-electromechanics on Biomedicine by COMSOL Multiphysics

J-S. Chang
National Taiwan University, Taipei, Taiwan

Prof. Jeng-Shian Chang received his B.Ec. degree (1974) in Mechanical Engineering from National Taiwan University, Taipei, Taiwan, and M.Sc. degree (1981) in Mechanical Engineering and M.Sc. degree (1983) in Computer Science both from Syracuse University, USA. In 1984 he received the Ph ... En savoir plus

Novel Automated Software System for Arcing Simulation in Spacecraft On-Board Electronics

V. Kozhevnikov [1], V. Karaban [2], D. Kosov [2], A. Kozyrev [1], A. Batrakov [1], N. Semeniuk [1], L. Zjulkova [1]
[1] Institute of High Current Electronics, Tomsk, Russia
[2] Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia

In our project, we propose an innovative software solution to the problem of electrical arcing risk prediction in high-voltage on-board electronic equipment intended for long-term self-contained use, e.g. in spacecraft conditions. It completely based on so-called “decomposition” approach ... En savoir plus

CFD Analysis of Loss Of Vacuum Accident for Safety Application in Experimental Fusion Reactor Facility

C. Bellecci[1], P. Gaudio[1], I. Lupelli[1], A. Malizia[1], M.T. Porfiri[2], R. Quaranta[1], and M. Richetta[1]

[1]EURATOM, Faculty of Engineering, University of Rome “Tor Vergata”, Roma, Italy
[2]ENEA Nuclear Fusion Tecnologies, Frascati, Roma, Italy

In an experimental nuclear fusion facility dust is generated both during normal machine operations and by macroscopic erosion of the plasma facing materials due to intense thermal loads. This dust can be mobilized by air ingress in case of LOVA (Loss of Vacuum Accident) threaten safety ... En savoir plus

Finite Element Approach for Optimizing the Cooling of the Metallic Bipolar plates for Fuel Cell Applications

E. Firat[1,2], C. Siegel[1,2], L. Kühnemann[1,2], P. Beckhaus[1], and A. Heinzel[1,2]
[1]Zentrum für Brennstoffzellentechnik (ZBT) GmbH, Duisburg, Germany
[2]University of Duisburg Essen, Duisburg, Germany

Metallic bipolar plates promise several advantages for fuel cell applications. On the other hand, cooling of these plates is a critical task regarding design optimization. The high thermal conductivity of the material and the complex geometry of these plates affect directly the cooling ... En savoir plus

Numerical Simulation of Auto-Propulsion Mechanism of Microorganism Inside a Microchannel

S. Patra [1], A. Dalal [1], G. Biswas [1], S. Shah [2]
[1] Indian Institute of Technology Guwahati, Guwahati, Assam, India
[2] Indian Institute of Technology Bhubaneswar, Bhubaneswar, Odisha, India

The present study manifests the several ground breaking flow phenomena arising out of hydrodynamic interactions between two microorganisms swimming inside a microchannel with close proximity. The results theorized in the present investigation scrutinizes the varying behavior of the ... En savoir plus

Propagation of Cathode-Directed Streamer Discharges in Air

Y. Serdyuk[1]
[1]Chalmers University of Technology, Gothenburg, Sweden

Streamers are considered as main cause of electrical breakdown in air at atmospheric pressure. A streamer is an ionization wave propagating in neutral gas which is converted into low-temperature plasma behind its front. A streamer model is based on drift-diffusion approach where space ... En savoir plus

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