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Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.

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Powerful automation and optimization methods for Material- and Process analysis with COMSOL Multiphysics and Matlab

T. Frommelt
SGL Group, Technology & Innovation, Meitingen, Germany

Thomas Frommelt received his PhD in physics in 2007 from the University of Augsburg for experimental work and simulation analysis on acoustically driven microfluidic mixing. In 2008, he joined the SGL Group and introduced COMSOL Multiphysics as the tool for flexible equation based ... Read More

FEM-Simulation of a Printed Acceleration Sensor with RF Readout Circuit

H. Schweiger[1], T. Göstenkors[1], R. Bau[1], D. Zielke[1]
[1]Dept. Engineering Sciences and Mathematics, University of Applied Sciences Bielefeld, Bielefeld, Germany

In this paper we want to figure out the development of a capacitive acceleration-sensor system with the FEM-Method. The sensor-system is in the position to detect accelerations in the range of ±20 g. Furthermore the sensor-element contains a printed RF-inductance, which is used for ... Read More

BHE Field Design by Superposition of Effects in Space and Time

S. Lazzari[1], E. Zanchini[1]
[1]DIENCA - University of Bologna, Bologna, Italy

A design method for BHE fields in the absence of groundwater flow is presented, based on the superposition of effects. The effects of any periodic heat load with a period of one year can be obtained by a weighted sum of the effects of a monthly unit step heat load, properly displaced in ... Read More

Towards a Model for Simulating Driving Rain on an Inclined Roof during Wind Gusts and Heavy Rain Intensity

A.W.M. van Schijndel[1]
[1]Eindhoven University of Technology, Eindhoven, The Netherlands

The roof of a well known shopping place in Amsterdam collapsed during a storm with heavy rain showers in 2002. One of the main problems was the malfunction of the draining system. Another problem was that driving rain water apparently washed over edges that where designed to hold the ... Read More

Modeling Deep-Bed Grain Drying Using COMSOL Multiphysics®

J.G. Pieters[1], R. ElGamal[1], F. Ronsse[1]
[1]Faculty of Bioscience Engineering, Department of Biosystems Engineering, Ghent, Belgium

CFD simulations were carried out to predict the convective heat and mass transfer coefficients in the rice bed, and correlations were developed for the convective heat and mass transfer coefficients as a function of drying air flow rate. The developed correlations were used to extend the ... Read More

Tunable MEMS Capacitor for mm and μm Wave Generation

Arpita Das[1], Amrita Nandy[1], Sakuntala Mahapatra[1], Sk. Mohammed Ali[1], Minu samantary[1]
[1]National MEMS design centre ,Department of Electronics and Telecommunication, Trident Academy of Technology, Biju Pattnaik University of Technology , India

This paper demonstrates the design of a tunable MEMS capacitor with two plates (one movable and one fixed). The response time obtained is 5μs. The tunable capacitor plays an important role in RF circuits. We focus on a tunable capacitor simulated using COMSOL Multiphysics®. In an ... Read More

Bio-Effluents Tracing in Ventilated Aircraft Cabins

G. Petrone[1], L. Cammarata[1], and G. Cammarata[1]
[1]Department of Industrial and Mechanical Engineering, University of Catania, Catania, Italy

Ventilation and Indoor Air Quality (IAQ) are issues of very high interest, determining comfortable conditions for occupants and no-contaminated local atmosphere. The aircraft cabins are more confined and have a higher occupant density than other indoor environments such as offices or ... Read More

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 ... Read More

Modeling of Noise Produced by Offshore Wind Turbines with Different Foundations and Effects on the Marine Environment

B. Marmo [1], I. Roberts [1]
[1]Xi Engineering Consultants, Edinburgh, Scotland, UK

Vibration produced by offshore wind turbines during their normal operation transmits through the tower into the foundation where it interacts with the surrounding water and is released as noise. The noise produced by offshore wind turbines can be detected by fish and marine mammals and ... Read More

Simulation and Design of a Microfluidic Respirometer for Semi-Continuous Amperometric Short Time Biochemical Oxygen Demand (BODST) Analysis

F.J. del Campo[1], A. Torrents[1], J. Mas[2], F.X. Muñoz[1]
[1]Instituto de Microelectronica de Barcelona, IMB-CNM (CSIC), Campus Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
[2]Departement de Genètica i Microbiologia, Campus Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain

Introduction: This work presents the design of a novel flow cell based miniaturized electrochemical respirometer to monitor organic content in water samples semi-continuously, in contrast to current Biochemical Oxygen Demand, BOD, methods. Simulation techniques has been used to ... Read More

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