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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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Dependence of friction on boundary curvature for Navier-slip conditions and highly viscous liquids nouveau

A. Riefer¹, P. Damm¹, G. Meichsner¹, M. Hackert-Oschätzchen¹
¹Chair of Manufacturing Technology with Focus Machining, Otto von Guericke University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany

The motion of a fluid can be described by the incompressible Navier-Stokes equations (NSE). A single particle embedded in the fluid experience a resistance resulting from a friction force. The friction force depends typically on the velocity but is directed in the opposite direction to ... En savoir plus

Simulation of Radon diffusion from soil into buildings considering media lead-through nouveau

A. Riefer¹, P. Damm¹, G. Meichsner¹, T. Muschalek², M. Gläser³, R. Schmidt³, M. Hackert-Oschätzchen¹
¹Chair of Manufacturing Technology with Focus Machining, Otto von Guericke University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
²Rublic + Canzler GmbH, Rohrleitungs- und Anlagenbau, Gabelsbergerstr. 4, 01809 Heidenau, Germany
³IfU GmbH Privates Institut für Umweltanalysen, Gottfried-Schenker-Str. 18, 09244 Lichtenau, Germany

The appearance of high concentrations of the radioactive noble gas Radon (Rn) in soil requires the installation of protection and mitigation mechanisms to hinder the Rn diffusion into buildings. In the present study, two schemes for the Rn diffusion reduction were explored with numerical ... En savoir plus

Hygrothermal simulations for the signal of an integrated RH sensor for wood windows nouveau

A. Riefer¹, R. Petermann¹, M. Hackert-Oschätzchen¹, G. Meichsner¹, U. Morawietz², P. Becher², M. Gläser³
¹Chair of Manufacturing Technology with Focus Machining, Otto von Guericke University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
²Arnold Electronic GmbH, Gottfried-Schenker-Str. 14, 09244 Lichtenau, Germany
³IfU GmbH Privates Institut für Umweltanalysen, Gottfried-Schenker-Str. 18, 09244 Lichtenau, Germany

The material wood is frequently used in construction industry for several elements such as window frames. However, as a hygrothermal material, wood is sensitive to moisture induced damage. In this context, the moisture uptake of wood based windows logged with an integrated relative ... En savoir plus

Simulation of the Shape of Micro Geometries Generated with Jet Electrochemical Machining

M. Hackert[1], G. Meichsner[2], and A. Schubert[1,2]
[1]Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany
[2]Fraunhofer Institute of Machine Tools and Forming Technology, Chemnitz, Germany

Electrochemical Machining with a closed electrolytic free jet is a special procedure to generate complex micro structures by help of anodic dissolution. The work piece shape is fabricated by supplying an electrolytic current through an electrolyte jet ejected from a small nozzle. In ... En savoir plus

Transient Simulation of the Removal Process in Plasma Electrolytic Polishing of Stainless Steel

I. Danilov [1], M. Hackert-Oschätzchen [1], I. Schaarschmidt [1], M. Zinecker [1], A. Schubert [1],
[1] Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany

Plasma electrolytic polishing (PeP) is an electrochemical method for surface treatment. In detail PeP is a special case of anodic dissolution [1] that unlike electrochemical polishing requires higher voltage and uses environment friendly aqueous solutions of salts. When the process ... En savoir plus

Numerical Investigation of Electrolyte Flow in a Multi-Cathode System for Electrochemical Machining

M. Penzel [1], I. Schaarschmidt [1], M. Hackert-Oschätzchen [1], A. Schubert [1],
[1] Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany

Manufacturing and finishing of components with complex internal features is a significant challenge. Industrial sectors like automotive industry, aeronautics or medical technology require these internal features with highest precision and repeatability. Such components are often machined ... En savoir plus

Simulation-based Analysis of a Microstructuring Process for Serrated Surfaces with Higher Friction

I. Schaarschmidt [1], M. Hackert-Oschätzchen [1], G. Meichsner [2], M. Zinecker [1], P. Steinert [1], A. Schubert [1, 2],
[1] Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany
[2] Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany

Actual trends in lightweight construction and safety-relevant technologies cause an increasing demand for reliable design of joining connections. Increasing power density and compact design require dimensioning of joints with low safety factors. Thereby additional security measures are ... En savoir plus

Analysis of Mixing Chambers for the Processing of Two-Component Adhesives for Transport Applications

P. Steinert [1], R. Paul [1], I. Schaarschmidt [1], M. Zinecker [1], M. Hackert-Oschätzchen [1], Th. Muschalek [2], J. Esslinger [2], A. Schubert [1]
[1] Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany
[2] Rublic+Canzler GmbH, Dresden, Germany

Two-component adhesives are commonly used for sealing and joining in transport applications for mechanically highly stressed connections. At the Chemnitz University of Technology an innovative system technology for the user-friendly, wireless and energy-efficient processing of two ... En savoir plus

Multiscale Model of the PECM with Oscillating Cathode for External Geometries Using a Virtual Switch

I. Schaarschmidt [1], M. Zinecker [1], M. Hackert-Oschätzchen [1], A. Schubert [1], G. Meichsner [2],
[1] Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany
[2] Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany

The machining of hardened steel or powder metallurgical steel, for example to manufacture impact extrusion punches, is a big challenge for conventional machining technology as milling or turning. A non-conventional machining technology is Electrochemical Machining (ECM), which allows ... En savoir plus

Approximation of the Flow Field in Electrochemical Machining Incorporating Pressure Drop Calculation

R. Paul [1], M. Zinecker [1], M. Hackert-Oschätzchen [1], A. Schubert [1],
[1] Professorship Micromanufacturing Technology, Chemnitz University of Technology, Chemnitz, Germany

Electrochemical Machining (ECM) is a non-conventional machining technology which allows for surface structuring and shaping of metallic workpieces with high accuracy and surface quality. The machining principle of ECM is electrolysis. Hence, the mechanical properties of the workpiece ... En savoir plus

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