Ravindra Mane, Sandeep soni
Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
This paper presents the 3D model of hydrodynamic plain journal bearing using COMSOL Multiphysics®. Using 3D Model, pressure distribution in plain journal bearing is obtained by steady state analysis of plain journal bearing. Generalized Reynolds equation is used for analyzing hydrodynamic journal bearing by COMSOL Multiphysics® as well as by analytical method by applying Sommerfeld boundary ...
Screening Effects in Probing the Electric Double Layer by Scanning Electrochemical Potential Microscopy
R.F. Hamou, P.U. Biedermann, A. Erbe, and M. Rohwerder
Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany
A computational method is developed to study probing the electric double layer by Scanning Electrochemical Potential Microscopy. The model is based on a modified Poisson- Boltzmann equation, which takes into account steric effects. We investigated the effect of metallic apex protrusion and the Open Circuit Potential (OCP) of the tip on the probed potential. A clear electrostatic screening effect ...
G. Atmeh, F. Darwish, and Z. Hasan
Jordan University of Science and Technology, Irbid, Jordan
Texas A&M University, College Station, TX, USA
The present study focuses on the design and analysis of a single-engine, propeller-driven general aviation airplane. Initial weight estimation based on the initial sketch and the design mission profile is conducted. The estimated weight and other design parameters are used to define the external geometry of the fuselage, wing and tail. Conic lofting is utilized to render a layout of the design ...
M. K. Gobbert, X. Huang, S. Khuvis, S. Askarian, B. E. Peercy
University of Maryland - Baltimore County, Baltimore, MD, USA
This paper presents information on techniques needed in COMSOL Multiphysics® to enable computational studies of coupled systems of PDEs for time-dependent non-linear problems. Furthermore, we demonstrate how to use data files as input for initial conditions. To illustrate the techniques, we consider a system of two time-dependent non-linear PDEs from mathematical biology that couples an ...
A. Javadi, P. Lodahl
Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
In this contribution we study how a planar photonic crystal waveguide (PhCW), created by introducing a line defect in the photonic crystal, can modify the projected local density of states (LDOS) for a dipole emitter. We use the COMSOL Multiphysics® RF Module to carry out eigenvalue calculations studies on PhCW. When the dipole is in resonance with the waveguide mode, the enhancement Fp of ...
Studying Target Erosion in Planar Sputtering Magnetrons Using a Discrete Model for Energetic Electrons
C. Feist, A. Plankensteiner, J. Winkler
CENUMERICS, Innsbruck, Austria
PLANSEE SE, Reutte, Austria
A discrete model for the prediction of relative ion bombardment flux and target erosion in planar sputtering magnetrons is implemented in COMSOL Multiphysics®. Planar magnetrons are used within physical vapor deposition (PVD) processes to form thin film depositions on various types of substrates. The presented model portrays trajectories of energetic electrons within low pressure direct current ...
Heat Transfer and Phase Transformation on Matrix Assisted Pulsed Laser Evaporation (MAPLE) of Biocompatible Thin Layers
E. Lacatus, G.C. Alecu, M.A. Sopronyi, A. Tudor
POLITEHNICA University of Bucharest, Bucharest, Romania
INFLPR -National Institute for Laser Plasma and Radiation Physics, Bucharest, Romania
Matrix Assisted Pulsed Laser Evaporation (MAPLE) technique is used for the deposition of high quality biocompatible polymer thin films. During the deposition process the temperature of the laser target should be kept below 193K to assure the proper quality of both evaporation and deposition phases of the process. On a first approach COMSOL Multiphysics® was used to describe and analyze the ...
W. Raja, A. Alabastri, S. Tuccio, R. Proietti Zaccaria
Department of Nanostructures, Istituto Italiano di Tecnologia, Genova, Italy
Surface plasmon resonance (SPR) sensors proved themselves as a promising device for many kinds of applications such as optical biosensing, binding constant determinationor nanofilm thickness measurements. Here we simulate using COMSOL Multiphysics® the light-polaritons coupling for the two most commonly used SPR setups: Attenuated total reflection (Kretschmann configuration) and diffraction ...
V. Bhatt, R.S Rautela, P. Sharma, D.C. Tiwari, and S. Khushu
Institute of Nuclear Medicine & Allied Sciences (DRDO), Delhi, India
The Helmholtz Coil generates a uniform magnetic field. The commercially available large-size Helmholtz coils prove to be very expensive. This paper describes the economical method of designing and construction of a Helmholtz coil. COMSOL Multiphysics AC/DC Module simulated results and actual results were compared in this study. The coil serves as a component in the system for Hyperpolarisation of ...
Dr. K.B. Deshpande
Senior Researcher, General Motors R&D, India Science Lab, Bangalore, Karnataka, India
Kiran received his M. S. from Indian Institute of Science, Bangalore and his Ph.D. from University of Sheffield, both in Chemical Engineering. He is currently working as a Senior Researcher at the General Motors R&D, India Science Lab, Bangalore where he is involved in modeling of galvanic corrosion and its mitigation strategies. Prior to joining GM R&D, he was Knowledge Transfer Program ...