M. Dimaki, J. Moresco Lange, P. Vazquez, P. Shah, F. Okkels, and W. Svendsen
Department of Micro- and Nanotechnology, Technical University of Denmark, Lyngby, Denmark
The need for fast, easy and cost-effective analysis of blood samples as well as our understanding of the functionality of cells and neurons are two rather pressing issues in the modern world. Both of these can be addressed by functional lab-on-a-chip systems, which have been designed and optimized for specific analyses. This paper deals with the design of several different systems for cell ...
M. F. Zäh, S. Lutzmann, M. Kahnert, and F. Walchshäusl
iwb Anwenderzentrum Augsburg, TU München, Augsburg, Germany
Additive Layer Manufacturing (ALM) methods, like Electron Beam Sintering (EBS), constitute an interesting process concerning the production of small series and customized products. However, transient effects occur during processing due to the different physical principles of an electron beam (EB). Thus, process knowledge from similar ALM technologies, for instance Selective Laser Melting, can ...
H. Conrad, T. Klose, T. Sandner, D. Jung, H. Schenk, and H. Lakner[1,2]
Semiconductor and Microsystems Technology Laboratory, Technische Universität Dresden, Germany
Fraunhofer Institute for Photonic Microsystems Dresden, Germany
Within this paper the so called “birth and death” method is demonstrated in use with COMSOL Multiphysics®. With this method the free and reactionless movement of a solid structure on deformed geometries and the activation of this solid structure at later simulation steps is possible. For demonstrating the benefit, this method was applied to simulate the thermal induced ...
Liquid Metal Metallurgy and Solidification department
Ugitech’s Research Center, Ugine, France
Dr. Christian Deville-Cavellin is a Research Engineer at Ugitech's Research Center, since 1995. Ugitech, member of the Schmoltz & Bickenbach group, is a stainless steel, long products producer. C. Deville-Cavellin is responsible for all research topics related to liquid metal metallurgy and solidification. He also keeps an expert role in machinability, within one of the french public ...
M. Ghadrdan, and H. Mehdizadeh
Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
Interest in the production of hydrogen from hydrocarbons has grown significantly recently. In order to achieve high surface to volume ratio with reasonable pressure drop, monolithic reactors are used. The goal of this work is to develop a two-phase (gas & solid) transient catalytic combustor model using a simplified flow field inside a single channel to test the advantages of the COMSOL ...
M. Bailoni, Y.Wei, and L. Norum
University of Trieste, guest at Norwegian University of Science and Technology (NTNU) Dep. of Electric Power Engineering, Trondheim, Norway
Norwegian University of Science and Technology (NTNU), Trondheim, Norway
This paper presents the mathematical modeling for the analysis of the magnetostrictive materials, which describes the behaviour of the magneto-mechanical coupling in a rod of magnetostrictive material and capturing it in COMSOL® to produce a predictive and detailed analysis. A simulation of the behaviour under harmonic excitation is done in this work.
Institut für Automatisierungstechnik, Otto-von-Guericke Universität, Magdeburg, Germany
Preparative chromatography is an important separation method where the simulated moving bed (SMB) technology is an increasingly used separation process for binary mixtures. Several chromatographic columns are arranged in a ring where the feedings and drains are changed cyclically to maintain a continuous separation. For this reason, an adaptive controller is proposed to adjust the flow rates ...
Department of Automatic Control and Mechatronics, University of Paderborn, Paderborn, Germany
Temperature and residual moisture content of a stationary Textile in a home tumble dryer are simulated in a 2D model with COMSOL Multiphysics. Moisture migration to the textile surface is modeled in the form of capillary flow and vapor diffusion along with heat transfer in the form of conduction and energy lost due to phase change (evaporation). The drying air energy, mass and momentum transport ...
Advanced Modeling of Friction Stir Welding – Improved Material Model for Aluminum Alloys and Modeling of Different Materials with Different Properties by Using the Level Set Method
Wilhelm Gronbach GmbH, Wasserburg a. Inn, Germany
Friction Stir Welding (FSW) has gained much importance throughout the last years. Beside comprehensive experimental work that has been carried out, the simulation of the welding zone is of major interest. Due to the high strains observed within the welding zone, the Eulerian (CFD) approach seems to be the most promising for the prediction of flow around the FSW tool. However, the CFD ...
D. Pradeep, N. Krishnan, and H. Nemade
Department of Electronics and Communication Engineering, Indian Institute of Technology Guwahati, India
Surface acoustic wave (SAW) devices based on Rayleigh wave, shear wave, love wave, acoustic plate mode (APM) wave and flexural plate wave have been explored for sensors, actuators and telecommunication applications. An interdigital transducer (IDT) is a metallic comb-like structure fabricated over piezoelectric substrate. SAWs are generated over the substrate by applying electrical signal to the ...