Aurabind Pal, Roma Dash, Anubhav Rath
Engineers India Limited, New Delhi; Summer Intern, Indian Institute of Technology Bombay,
IOCL,New Delhi; Intern, Indian Institute of Technology Bombay, Maharashtra, India
3ETH Zurich, Switzerland
Finite element modeling of three phase three limbed transformer requires solving of field and circuit variables simultaneously. The accurate modeling thus obtained could predict asymmetry in magnetizing current of three phases due to asymmetry in core of three limbed transformer. This work includes circuit field coupling using COMSOL Multiphysics’ ACDC module. By proper modeling in SPICE it ...
A.H. Hegab, J.P. Kaerst
HAWK, University of Applied Sciences and Arts, Goettingen, Germany
Rotor blades for wind turbines are made of GFRP material. They have to be designed to withstand wind and weather over their approximately 20 years of lifetime. The ability to monitor the mechanical stress is crucial in order to reduce maintenance costs and to maximize operational availability. This paper presents the combination of SPICE® and COMSOL Multiphysics®, in order to reduce ...
M. Dong, M. Tomes, M. Eichenfield, M. Jarrahi, T. Carmon
University of Michigan, Ann Arbor, MI, USA
Sandia National Laboratories, Albuquerque, NM, USA
We present a 3D port sweep method in a lossy silicon photonic crystal resonator to demonstrate the capabilities of COMSOL Multiphysics® for frequency domain analysis with input and output ports. This method benefits from the advantages of the S-parameter analysis to characterize the input and output coupling into the resonator. By pumping one end of the cavity with a CW plane wave, we are able ...
U. K. Veeramachaneni, and R. Lloyd Carroll
Department of Chemistry, West Virginia University, Morgantown, WV, USA
A model is presented for predicting the motion of magnetizable particles in a gradient magnetic field, considering the effects of fluidic forces on particles in the micro system.The micro system consists of a gradient magnetic field (such as that produced by a solenoid or permanent magnet), a magnetizable particle, and the fluid surrounding the particle (water).Particles located in the gradient ...
Modeling and Simulation of High Permittivity Core-Shell Ferroelectric Polymers for Energy Storage Solutions
N. Badi, R. Mekala
University of Houston, Houston, TX, USA
The dielectric properties of ferroelectric PVDF polymer embedded core-shell (Al-Al2o3) nanoparticle is simulated using COMSOL Multiphysics® software. Significant increase in electrical permittivity of the composite at percolation threshold (K = 2800) is achieved when compared to electrical permittivity of bare polymer (K = 12). Both Maxwell Garnett and Symmetric Bruggeman models gave an ...
Optimization of Artificial Diffusion Stabilization Techniques and Corresponding Mesh Density Distribution in Drift Dominated Transport of Diluted Species
J. Jadidian, M. Zahn, N. Lavesson, O. Widlund, K. Borg
Massachusetts Institute of Technology, Cambridge, MA, USA
ABB Corporate Research, Västerås, Sweden
This paper presents an optimized combination of artificial diffusion techniques to stabilize a drift dominated streamer discharge model which includes COMSOL Multiphysics’ Transport of Diluted Species modules for positive ion, negative ion, and electron charge densities, coupled through the Electrostatic module. A Thermal Conduction and Convection module is responsible for the heat transfer in ...
Asif Ahmad Bhat, D. Sujish, Sourabh Agarwal, B. Muralidharan, G. Padmakumar, K. K. Rajan
Fast Reactor Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
Vacuum distillation furnaces (VDFs) are employed for purification and consolidation of heavy metals from their dendritic forms which are entrained with molten salts. The VDF is an induction heated furnace which is operated at a temperature of 700-1400 °C and at a pressure of 0.01-600 torr. To arrive at the adequate design of such type of furnace, magnetic field and temperature distribution need ...
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 ...
Pulsed Eddy Current Probe Development to Detect Inner Layer Cracks Near Ferrous Fasteners Using COMSOL Modeling Software
V. Babbar, P. Whalen, T. Krause
Department of Physics, Royal Military College of Canada, Kingston, ON, Canada
Surface breaking cracks in conductive structures can be detected by conventional eddy current techniques. However, it is very difficult to detect inner layer defects in multilayered conductive structures either by conventional eddy current or ultrasonic methods. The transient/pulsed eddy current (PEC) technology can potentially overcome these limitations and is being developed for detection of ...
L. P. Aoki, H. E. Schulz, M. G. Maunsell
University of São Paulo, São Carlos, SP, Brazil
This article considers a closed water circuit with square cross section filled with an electrolyte fluid. The conductor fluid was moved using an electromagnetic pump, in which a permanent magnet generates a magnetic field and electrodes generate the electric field in the flow. Thus, the movement is a consequence of the magnetohydrodynamic (or MHD) effect. The model adopted here was derived from ...