H. Fuqua, G. Delory, I. de Pater, R. Grimm
University of California - Berkeley, Space Sciences Lab, Berkeley, CA, USA
University of California - Berkeley, Berkeley, CA, USA
Southwest Research Institute, Boulder, CO, USA
Electromagnetic sounding measurements utilize magnetic induction to constrain the interior geophysical properties of planetary bodies. Under some conditions, the Earth’s Moon can be approximated by the response of a conducting sphere in a vacuum. Transient magnetic fields originating from the Sun can interact directly with the Moon, producing eddy currents that in turn generate an induced ...
Simulation and Optimization of the Speed Flow in COMSOL Multiphysics® during the Suction of the Dust Pump for Granite Polishing Operation
B. Wenga, J. Kouam, A. Djebara, A. Bahloul, V. Songmene
École de Technologie Supérieure, Verdun, Montreal, QC, Canada
Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), Montreal, QC, Canada
Polishing is one of the oldest finishing processes that are necessary because of the commercial value given to aesthetics in the construction product. Several companies in Quebec (Estrie region) are deployed in the finishing sector where single had in 2009 have sailing in about 14,000 tons of granite to a turnover of $1.5 million CAD. This favorable economic growth in this sector greatly ...
E. Nesvijski[1,2], R. Sahul
Western New England College, Springfield, MA, USA
TRS Technologies, State College, PA, USA
Finite element analysis (FEA) is a modern tool for exploration of new horizons in science, technology and engineering. Different computer software such as ANSYS, ABACUS, PZFLEX and COMSOL Multiphysics® based on FEA are used for modeling and simulation of acoustic phenomena, for design of new and optimization and improvement of existing acoustic engineering systems. This work presents application ...
A Multiphase Porous Medium Transport Model with Distributed Sublimation Front to Simulate Vacuum Freeze Drying
A. Warning, J. M. R. Arquiza, A. K. Datta
Cornell University, Ithaca, NY, USA
A continuum, porous medium formulation with non-equilibrium sublimation was developed and validated for freeze drying without and with uniform microwave volumetric heating. The model incorporates the effect of Knudsen flow at low pressure and low permeability freeze drying. The distributed, non-equilibrium sublimation demonstrated that the sublimation front is a sharp boundary for high ice ...
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 ...
S. G. Mokros[1, 2], V. K. Babbar, T. W. Krause, J. Morelli
Department of Physics, Royal Military College of Canada, Kingston, ON, Canada
Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, ON, Canada
Steam generator (SG) tubes in CANDU® nuclear reactors can lose efficiency in the presence of corrosion and its by-products. Condition monitoring of support structures could help direct maintenance activities and thereby increase SG tube lifetime. Pulsed eddy current (PEC) has been proposed as a method to non-destructively determine the presence of defects in support structures. COMSOL ...
J. Xi, Q. M. Mohamad, Y. E. Yuan, J. Rohlinger
Mechanical and Biomedical Engineering, Central Michigan University, Mount Pleasant, MI, USA
1. Flow-induced uvula deformation considerably altered the flow dynamics inside the nose. 2. For a weak soft palate, complete flow occlusion can occur (sleep apnea). 3. Vibration of the airway structures is crucial to better understand snoring generation mechanisms and breathing-related disorders.
L. Z. Tong
Keisoku Engineering System Co., Ltd., Tokyo, Japan
The plasmas generated in water involve various physical phenomena such as flows agitated by bubbles, high electric fields for breakdown, discharges in bubbles with size variation, and so on. In this paper, studies have been made on the simulation of plasmas generated in bubbles with size variation. The species taken in account include electrons, three kinds of ions, and ten kinds of neutral ...
M. Trujillo, E. Berjano
Universidad Politécnica de Valencia, Valencia, Spain
Radiofrequency ablation is a minimally invasive techinique which is used to treat some kinds of cancer. The realism of theoretical models is very important. An influential factor in this realism is mathematical functions that model the temperature-dependence of tissue thermal and electrical conductivities. The aim of this work is to review the mathematical functions employed to model the ...
Heat Generation from H₂/D₂ Pressurization of Nanoparticles: Simulation of the Experiments on COMSOL Multiphysics®
A. Osouf, G. Miley, B. Stunkard, T. Patel, E. Ziehm, K. Kyu-Jung, A. Krishnamurthy
Department of Aerospace Engineering, University of Illinois at Urbana - Champaign, Urbana, IL, USA
Department of Nuclear, Plasma & Radiological Engineering, University of Illinois at Urbana - Champaign, Urbana, IL, USA
University of Illinois at Urbana - Champaign, Urbana, IL, USA
A COMSOL Multiphysics® model of our apparatus has been created in order to simulate the pressurizations of our nanoparticles by Deuterium. Using reference measurements during a cooling process, we calibrated the model so that its thermal aspects reflect the ones of our experimental set up. To reproduce the pressurizations, the following variables are parameters : the location of the heat ...