A. K. Namdeo, N. Ramakrishna, H. B. Nemade[1,2], and R. P. Palathinkal
 Department of Electronics and Communication Engineering, Indian Institute of Technology Guwahati, Assam, India
 Centre for Nanotechnology. Indian Institute of Technology Guwahati, Assam, India
In this paper a finite element method(FEM) study of a surface acoustic wave (SAW)device excited by electrostatic coupling method is performed by using COMSOL Multiphysics. We have modeled a Rayleigh wave type SAW device by choosing YZ Lithium niobate as the substrate. The effect of external radio frequency (RF) field to the SAW device is analyzed. The effect of distance between the contactless ...
President and CEO, COMSOL
Svante Littmarck is the CEO of the COMSOL group. He co-founded COMSOL in 1986. He holds a M.Sc. in Applied Mathematics from the Royal Institute of Technology in Stockholm. In 2004 he received an honorary doctoral degree from the Royal Institute of Technology.
H. Rouch and O. Geoffroy
INOPRO, Villard de Lans, France
High temperature processes are used in a large variety of industrial application. Simulation helps to solve technological problems and increase energy efficiency in case of industrial scale simulation. We present in this paper a research equipment simulation. The aim is to increase knowledge of temperature field in the crystal growth region in order to give researcher some important information ...
MSS-Mat Laboratory, CNRS, Ecole Centrale Paris, Châtenay Malabry, France
Ensuring the quality of underground water and controlling its quantity is of major concern for the population. Therefore, this subject attracts many students from different specialties at different levels of their curriculum. In fact, the pedagogic objectives of the course may be different according to the level or/and interest of the students and COMSOL is used due to its versatility. In this ...
COMSOL Derived Universal Scaling Model For Low Reynolds Number Viscous Flow Through Microfabricated Pillars – Applications to Heat Pipe Technology
N. Srivastava, and C.D. Meinhart
Department of Mechanical Engineering, University of California Santa Barbara, Santa Barbara California, USA
Cooling of high-power density electronic devices remains a challenge. Microfluidic heat-pipes with the potential of achieving ultra-high thermal conductivities offer a low-cost technology for cooling electronics. To achieve high thermal conductivity, it is critical to maximize the rate of liquid transport inside the heat pipe. We propose a novel array of microfabricated pillars to maximize ...
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 ...
A. Auge, F. Wittbracht, A. Weddemann, and A. Hütten
Department of Physics, University of Bielefeld, Germany
Transport phenomena in spatially periodic magnetic systems, in particular the directed transport of magnetic beads in a so called magnetic ratchet (Brownian motor) are considered. Simulations are carried out to test and optimize this system, where the Smoluchowski equation with flux terms for the magnetic and gravitational force is used. Furthermore, experiments are carried out to verify the ...
Parameter Identification in Partial Integro-Differential Equations for Physiologically Structured Populations
S. Moenickes, O. Richter, and K. Schmalstieg
Institut für Geoökologie, Abt. Umweltsystemanalyse, Technische Universität Braunschweig, Germany
Continuous dynamic models, e.g. COMSOL based simulations, play – besides statistical or iterative methods – a mayor role in theoretical ecology; in forecasting and management, but also in systems analysis. Ecological issues generally comprise highly interacting agents and/or unknown side effects. Here we show how combining direct simulation with COMSOL with simple optimization tools ...
K. Zhou, S. Alpay, and S. Boggs
Institute of Material Science, University of Connecticut, Storrs, CT, USA
Finite Element analysis is used to model 2-D and 3-D paraelectric-dielectric composites (BaTiO3 spherical fillers randomly distributed in constant dielectric matrix). The effective dielectric response and tunability are studied under different filler sizes and different volume fractions. The results are consistent with previous theoretical and experimental results: with the increasing of filler ...
Deformation of Drop-within-Drop System under the Influence of High Intensity Oscillating Electric Field
D. Das, R.S. Patil, S. Kulkarni, V.A. Juvekar, and R. Bhattacharya
IIT Bombay, Mumbai, Maharashtra, India
India Atomic Energy Regulatory Board, Mumbai, Maharashtra, India
This paper deals with the simulation study using COMSOL on the deformation of drop-within-drop system in a high intensity oscillating electric field. It consists of a composite drop suspended in a continuous phase. This composite drop has a smaller inner drop suspended within the larger outer drop. The outer drop is made up of another immiscible liquid. A high intensity sinusoidally varying ...