C. Belavý, G. Hulkó, S. Lipár, B. Barbolyas
Institute of Automation, Measurement and Applied Informatics, Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Bratislava, Slovak Republic
In the paper, first a basic concept of the engineering approach for modeling and control of distributed parameter systems (DPS) based on interpretation of controlled systems as lumped input and distributed output systems (LDS) is introduced. Next, FEM modeling of temperature fields in casting mould and extruder body as real DPS by means of the software environment COMSOL Multiphysics® is ...
A. Oukaira , A. Lakhssassi ,
 Department of Computer Science, Université du Québec en Outaouais à Hull, Gatineau, QC, Canada
The Purpose of this paper is to develop a thermal model using COMSOL Multiphysics® software that aims to get an idea of the heat flow around the ASIC, as well as to address the thermal issues for integrated circuits at the tongue board. However, we need sources of heat simulations to map the tab to establish its thermal mapping. This led us to perform simulations at each ASIC of the tab that ...
Modification of the Ion Angular Distribution in Plasma Sheath: Modeling Approach under COMSOL Multiphysic
TEL US Holdings, Albany, NY, USA
System for in-situ control of the ion angular distribution function (IADF) in plasma reactor is modeled. Typical IADF depends on the pressure, bias and excitation frequency. It is formed due to a difference in the physical properties of the plasma and sheath domains. The IADF is modified by biased grid which is built into a holder. The time varying E-field in sheath is influencing the ion path. ...
An Analysis of Spin-Diffusion Dominated Ferrofluid Spin-Up Flows in Uniform Rotating Magnetic Fields
S. Khushrushahi, A. Guerrero, C. Rinaldi, and M. Zahn
Massachusetts Institute of Technology, Cambridge, MA
Univeridad Industrial de Santander, Bucaramanga, Colombia
University of Puerto Rico, Mayaguez, Mayaguez, PR
This work analyzes the spin-diffusion dominated explanation for spin-up bulk flows in ferrofluid filled cylinders, with no free surface, subjected to a uniform rotating magnetic field. COMSOL results are compared to experimental results and analytical results. Simulating ferrofluid spin-up flows have many subtleties, especially when using a single domain region to model the ferrofluid ...
G. Zhang , Y. Zhao , J. Brcka , J. Faguet ,
 Clemson University, Clemson, SC, USA
 Tokyo Electron U.S. Holdings, Inc., Austin, TX, USA
We have simulated alignment and movement of multiple particles under Dielectrophoresis (DEP) using the Particle Tracing Module in COMSOL Multiphysics® software with particle-particle interaction taken into consideration. We are able to do efficient modeling for both 2D and 3D cases. With this work, we are able to shed important insights into the process of pearl chain formation, antenna-like ...
Fluid-Structure Interaction Modeling for an Optimized Design of a Piezoelectric Energy Harvesting MEMS Generator
I. Kuehne, A. van der Linden, J. Seidel, M. Schreiter, L. Fromme, and A. Frey
Siemens AG, Corporate Research & Technologies, Munich, Germany
Comsol Multiphysics GmbH, Göttingen, Germany
This paper reports the design of a piezoelectric energy harvesting micro generator for an energy autonomous tire pressure monitoring wireless sensor node. For our design we use a piezoelectric MEMS generator approach without additional mass. The intrinsic mass of the cantilever is in the microgram region and the resulting acceleration forces are very small. The generator has a triangular ...
J. Zhang, Y. Mizuyama, W. Xiong, Y. Zhou , and Y. Lu
Panasonic Boston Laboratory, Newton, MA, USA
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-temperature, which is up to ~1635oC on both Si and glass substrates. The other is the accumulated ...
Micro and Nanotechnology Program
Middle East Technical University
In this study, a new thermoelectric harvester with fluid flow for increased performance is introduced. The thermoelectric generator is 3D vertical configuration with p- and n-doped Silicon thermolegs. There is water flow between channels integrated through the thermoelectric columns, providing forced convection on the heat flow path. Our thermoelectric generator design can be used for energy ...
S. Khushrushahi, A. Weddemann, Y. Kim, and M. Zahn
Massachusetts Institute of Technology
Prior work has analyzed the case of planar Poiseuille ferrofluid flows in planar ducts stressed by uniform sinusoidally applied fields transverse and perpendicular to the duct axis. The coupled linear and angular momentum conservation equations with imposed magnetic flux density, Bx and magnetic field Hz result in a fourth-order system that was numerically solved using the shooting method in ...
S. Loire, and P. Kauffmann
University of California
Santa Barbara, CA
Recently, electrokinetic flows have raised the interest of the scientific community. Driving flow with an electric field leads to promising applications for mixing, concentration, pumping application in lab on chips. However, current models are still inaccurate and don\'t fit the measures. The simple decoupled model developed by Ramos et al does not predict velocities for all parameters. ...