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Suchbegriff:

A Numerical Study for Rubber Particles Collection Involved in New Thermoforming Composite Process Using COMSOL Multiphysics^®

R. Carbone[1], V. Antonelli[2][3], A. Langella[1], and R. Marissen[3]

[1]Material and Production Engineering Department, Università degli Studi di Napoli Federico II, Napoli, Italy
[2]Institute of Lightweight Structures, Technische Universität München, München, Germany
[3]Design and Production of Composite Structure, Delft University of Technology, Delft, The Netherlands

This paper deal of the forming process applied to the thermoplastic composites. A new thermoforming process that uses rubber particles collection as flexible mould was presented and numerically modeled. A characterization of the rubber in particles form was previously performed to value ... Mehr lesen

COMSOL Modelling of a Planar Micro Ion Mobility Spectrometer

R. Cumeras, I. Gràcia, E. Figueras, L. Fonseca, J. Santander, M. Salleras, C. Calaza, N. Sabaté, and C. Cané
Instituto de Microelectrónica de Barcelona, Barcelona, Spain

A micro Planar Ion Mobility Spectrometer (P-FAIMS) has been simulated using multiphysics software. In P-FAIMS target ions are discriminated by the application of the proper separation voltages to the electrodes of the system. Modelling of vapour phase ions of two compounds have been ... Mehr lesen

Simulation of Heating Sol-Gel Thin Film By Laser Pulse Train

J. Zhang[1], Y. Mizuyama[1], W. Xiong[2], Y. Zhou [2], and Y. Lu[2]
[1]Panasonic Boston Laboratory, Newton, MA, USA
[2]University of Nebraska, Lincoln, NE, USA

Simulation of laser pulse-train (25ns, 60 kHz and 3000 pulses) heating Sol-Gel thin film using COMSOL Multiphysics software is investigated. The results show two kinds of temperatures formed on film surface by laser pulse-train heating. One is a single pulse induced transient peak ... Mehr lesen

Numerical Simulation of pH-sensitive Hydrogel Response in Different Conditions

M.K. Ghantasala[1], B.O. Asimba[1], A. Khaminwa[1], K.J. Suthar[2], D.C. Mancini[3]
[1]Department of Mechanical and Aeronautical Engineering, Western Michigan University, Kalamazoo, MI, USA
[2]Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
[3]Physical Sciences and Engineering, Argonne National Laboratory, Argonne, IL, USA

The understanding of pH-sensitive hydrogel swelling response in different buffer environmental condition is essential for its use in different practical applications. This necessitates its simulation in steady state and transient conditions. This paper mainly deals with the details of ... Mehr lesen

Mathematical Modeling Of Traveling-Wave Electroosmotic Micropumps By Using Of The Weak Form

J. Hrdlicka, P. Cervenka, and D. Snita
Institute of Chemical Technology Prague, Prague, Czech Republic

This contribution is devoted to the mathematical modeling of the AC electroosmotic micropumps in COMSOL Multiphysics and Matlab. The mathematical model involves the microchannel surroundings and several AC-voltage driving modes. The weak form has been used for handling singularities and ... Mehr lesen

The Full-System Approach for Elastohydrodynamic Lubrication

N. Fillot[1], T. Doki-Thonon[1], and W. Habchi[2]
[1]CNRS, INSA, Université de Lyon, Lyon, France
[2]Department of Industrial and Mechanical Engineering, Lebanese American University, Byblos, Lebanon

A ball is in contact with a plane, and a lubricant separates the two surfaces to decrease friction during their relative motion. To avoid wear, the lubricant film thickness should be higher than the surface roughness. The goal of this paper is to show how it is possible to solve ... Mehr lesen

Simulation Enquiries on Energy Transfer Efficiency in Stored Fluids

E. Zinterl, and G. Jakopic
JOANNEUM RESEARCH Forschungsgesellschaft mbH,
MATERIALS-Institute for Surface Technologies and Photonics
Weiz, Austria

Heating or cooling of stored fluids by thermal energy exchange with the enclosing walls may be enhanced by improving the efficiency of energy transfer; energy loss to the ambient is equalized for all simulations. Buoyancy driven internal natural convective flow is assumed to be the main ... Mehr lesen

Modelling of Selected Electromechanical Phenomena in the DC Machine

M. Antczak, P. Idziak, and W. Lyskawiski
Poznań University of Technology, Poland

The paper presents the results of the experiment consisting in determination of the influence of the magnetic field on deformations of the stator and the rotor of the DC motor. The numerical model of the motor for the frameless DC machine of the G series has been elaborated. Real ... Mehr lesen

Drying In Porous Media: Equilibrium And Non-Equilibrium Approaches For Composting Processes

A. Pujol[2], S. Pommier[3], G. Debenest[2], M. Quintard[2], and D. Chenu[1]
[1]Veolia Environnement, Limay, France
[2]IMFT, Toulouse, France
[3]INSA Toulouse, Toulouse, France

To understand origins and consequences of drying phenomenon during composting, a compositional drying model of a partially water-saturated porous media coupled with biodegradation has been developed. The different simulations carried out under COMSOL Multiphysics demonstrate the ability ... Mehr lesen

Aggregation Kinetics of Colloidal Nanoparticles in a Circulating Microfluidic Cavity

M.R. Barmi[1], B.D. Piorek[1], M. Moskovits[2], C.D. Meinhart[1]
[1]Department of Mechanical Engineering, University of California Santa Barbara, Santa Barbara, CA, USA
[2]Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, USA

Pressure-driven air flow is directed over the microfluidic cavity induces circulating fluid motion in the cavity. Analyte contained in the air stream is absorbed into the cavity, mixes with the nanoparticles as a result of the circulating cavity flow. Therefore, the nanoparticles ... Mehr lesen

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