J. Drillet ,
 DECHEMA-Forschungsinstitut, Frankfurt, Germany
This work aims at the modelling of a 5 cm^2 Direct Methanol Fuel Cell (DMFC) with mixed serial/parallel serpentine flow fields in terms of current/voltage behavior. One of the main challenge to overcome consists on lowering the so-called methanol cross over from the anode through the polymer membrane to the cathode that is responsible for mixed-potential formation at the cathode where both ...
S. Hossain , F. A. Mohammadi 
 Department of Electrical and Computer Engineering, Ryerson University, Toronto, ON, Canada
INTRODUCTION: Abnormalities in local body surface temperature have been recognized as a sign of disease for centuries, much before humans knew about the cause of ailments or of pain . The idea of this work is to use numerical simulation tools to predict the location, size and metabolism of tumor embedded in any outer body organ of human. Idealized thermal data of an organ, modeled either as a ...
S. Bekemeier, L. Fromme, A. Genschel, K. Kröger
University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics, Bielefeld, Germany
Adequate cooling of beverages is a major issue in planning of several types of events, e.g. poster sessions at conferences. One crucial factor is the time needed to cool beverages from its initial temperature to the desired drinking temperature. We present a way to determine a close approximation for the cooling behavior of three types of commonly used beverage containers using COMSOL ...
S. Park, S. Chung, and J. Yeow
University of Waterloo, Systems Design Engineering, Waterloo, Ontario, Canada
A micromirror or a torsional actuator in general has been proven to be one of the most popular actuators fabricated by Micro-Electro-Mechanical System (MEMS) technology in many industrial and biomedical applications such as RF switches, a laser scanning display, an optical switch matrix, and biomedical image systems. In this paper, two stacked micromirrors are presented and analyzed to show ...
G. Galgana, P. McGovern, and E. Grosfils
Lunar and Planetary Institute, Houston, Texas, USA
Pomona College, Claremont, California, USA
We present an implementation of the Structural Mechanics module of COMSOL Multiphysics to model the state of stress associated with the emplacement of large volcanic edifices on the surface of a planet. These finite element models capture two essential physical processes: (1) Elastic flexure of the lithosphere beneath the edifice load, and (2) Pressurization of a magma-filled chamber that serves ...
H.C. Wong, K.N. Cho, and W.C. Tang
Department of Biomedical Engineering, University of California, Irvine, California, USA
Atherosclerosis causes the deposition of plaque on the inner walls of arteries, which leads to restricted blood flow. Using the balloon angioplasty procedure, stents can be inserted and expanded in the atherosclerotic artery. We used COMSOL Multiphysics Structural Mechanics, Solid Stress-Strain module to perform static, large deformation analyses. Our results show that lower stent stresses were ...
Numerical Simulations Demonstrate Safe Vitrification and Warming of Embryos Using the Rapid-i™ Device
B.O.J. Johansson, Y.A. Tarakanov, H.J. Lehmann, and S.P. Apell
Department of Applied Physics, Chalmers University of Technology, Gothenburg, Sweden
Vitrolife Sweden AB, Västra Frölunda, Sweden
During cryopreservation of human embryos, ice crystal formation in the embryos or in surrounding media may cause cryodamage to them and can be lethal. A strategy to avoid this is the vitrification procedure when the embryo and the surrounding medium undergo the transition to glassy state rather than a crystalline one during cooling. Similarly, recrystallization in the embryo or the medium must ...
G. Petrone, L. Cammarata, and G. Cammarata
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 residential houses. The passengers and the crew share a closed and ventilated cabin, which brings potential risk ...
A Study of Distributed Feed-Back Fiber Laser Sensor for Aeronautical Applications Using COMSOL Multiphysics
I. Lancranjan, C. Gavrila, S. Miclos, and D. Savastru
Advanced Study Centre - National Institute for Aerospace Research Elie Carafoli, Bucharest, Romania
Technical University of Civil Engineering Bucharest, Romania
National Institute R&D of Optoelectronics, INOE 2000, Bucharest, Romania
Distributed Feedback Fiber Laser (DFB-FL) sensors are increasingly used in aeronautical applications. One of the newest such applications consists in detecting the “transition” zone between laminar and turbulent air flow upon the extrados surface of an aircraft wing. In this specific application DFB-FL are operated as air pressure sensors monitoring amplitude variations of ~1 Pa (laminar flow) ...
O. Legrani, O. Elmazria, S. Zhgoon , L. Le Brizoual, and A. Bartasyte
Institut Jean Lamour, CNRS-Nancy University, Vandoeuvre lès Nancy, France
Moscow Power Engineering Institute, Krasnokazarmennaja, Moscow, Russia
Institut des Matériaux Jean Rouxel, Université Nantes, CNRS, Nantes, France
In this work, the theoretical study for the realization of waveguiding layer acoustic waves devices based on AlN/IDT/ZnO/Silicon structure using the modeling software COMSOL Multiphysics (2D) is presented. The effect of thicknesses of AlN and ZnO thin films on the evolution of frequency response, phase velocity and electromechanical coupling is studied. The adequate structure is determined for ...