G. Maizza and A. Tassinari
Dipartimento di Scienza dei Materiali ed Ingegneria Chimica, Politecnico di Torino, Torino, Italy
Capacitor Discharge Sintering (CDS) is an ultrafast Electric Current Assisted Sintering method (u-ECAS) suited for electrically conductive powders. It is characterized by relatively short processing times (milliseconds range) and much lower sintering temperatures than the melting point of the powders. However, the CDS basic phenomena are not fully understood yet neither at the macroscale nor at ...
S. Bechu, T. V. Tran, A. Lacoste, A. Bès, M. Rayar, and J. Pelletier
Laboratoire de Physique Subatomique et de Cosmologie Centre de Recherche Plasma, Matériaux-Nanostructures, Université J. Fourier, Grenoble, France
The simulation of plasma produced by a dipolar source requires a global, self consistent, modeling of its function. A first optimization of the dipolar source, magnetostatics, microwave propagation and fast electron trajectories (Particles in Cell (PIC) and Monte-Carlo hybrid method) have been performed with COMSOL Multiphysics and MATLAB.
J. Roche, P. Von Lockette, and S. Lofland
Mechanical Engineering Dept., Rowan University, Glassboro, NJ
Physics and Astronomy Dept., Rowan University, Glassboro, NJ
In this study, magneto-rheological elastomer (MRE) composite beams made of Barium hexaferrite (BaM) and Iron (Fe) powders combined with a highly-compliant matrix material were simulated using COMSOL\'s Solid Mechanics and AC/DC modules. The goal of the work was to develop models capable of predicting the actuation behavior of hard- and soft-magnetic MREs. This work simulates the bending of the ...
Head of the Mechanics of Materials Department, Forschungszentrum Karlsruhe, Germany
Outline of presentation: theory of phase-field modeling of ferroelectric materials parameter identification in free energy density finite element implementation: PDE form weak form periodic boundary conditions: electrical mechanical domain configurations intrinsic and extrinsic contributions to small signal properties ---------------------------------- Keynote speaker's ...
C. Hollenstein, and A. Howling
Ecole Polytechnique Fédérale de Lausanne, Switzerland
Finite elements using COMSOL Multiphysics have been used to simulate the edge plasma in a large area capacitively coupled RF reactor. In order to reduce numerical difficulties simplified reactor edge geometries have been used. First results show the importance of electrostatic double layers within this plasma. In addition the non-uniform behaviour of the plasma sheath around convex and ...
A. Traidia, F. Roger, and E. Guyot
Ecole Nationale Supérieure de Techniques Avancées, Palaiseau, France
AREVA NP, Centre Technique Soudage, France
In this poster, a numerical model of spot pulsed current TIG welding for partially and fully penetrated weld pools is presented. Heat transfer and fluid flow in the weld pool driven by the combination of electromagnetic force, buoyancy force, surface tension gradient and latent heat are included in our model. A new formulation of the electromagnetic problem is introduced to take into account eddy ...
Atomic Energy of Canada Limited, Pinawa, MB, Canada
The hydro-mechanical (HM) numerical simulation of a shaft seal installed at a fracture zone in a hypothetical host rock using COMSOL is presented. Two different stages are considered in the numerical modelling. Stage 1 simulates the groundwater flow into an open shaft. Stage 2 simulates the groundwater flow after installation of shaft sealing-components. The shaft sealing components include: ...
S. V. Kulkarni
Indian Institute of Technology
S. V. Kulkarni a Professor in Electrical Engineering Department, Indian Institute of Technology, Bombay, India. Previously, he worked at Crompton Greaves Limited and specialized in the design and development of transformers up to 400 kV class. He has authored book \"Transformer Engineering: Design and Practice\" published by Marcel Dekker, Taylor & Francis Group. The author of more than 120 ...
O. Nasir, M.Fall, T.S. Nguyen[1,2], and E. Evgin
Department of Civil Engineering, University of Ottawa, Ottawa, Ontario, Canada
Canadian Nuclear Safety Commission (CNSC), Ottawa, Ontario, Canada
The last glacial cycle in the Northern Hemisphere started approximately 120,000 year ago. During that cycle, Southern Ontario was buried under a continental ice cap, with a maximum thickness of up to 3km. The ice cap retreated approximately 10,000 years ago. The COMSOL Multiphysics code is used to model the physical processes of the impact of past glaciations on the evolution of hydraulic system ...
Electrostatic Screening Effects between Vertically Aligned Carbon Nanotubes and Fast Transient Joule Heating during Field Emission
M. Dionne, J.-L. Meunier, and S. Coulombe
Department of Chemical Engineering, McGill University, Montreal, QC, Canada.
To minimize the erosion of arc electrodes, surface melting must be avoided by optimizing field emission. This can be achieved through the use of sharp structures in the design of the surface topography.Carbon nanotubes standing vertically on metal substrates are good candidates for the creation of new electrodes fulfilling these requirements but their dimensions and density on the substrate must ...