C. Morgan, N. Kenkare, M. Williams, A. Peterson, and D. Williams
Alcon Eye Care Division of Novartis R&D, Duluth, GA
Alcon Eye Care Division of Novartis R&D and Georgia Institute of Technology Co-op Program, GA
Introduction of silicone hydrogel contact lens materials provided products of unprecedented capability to deliver oxygen to the eye during wear. One additional material characteristic of interest is the material’s permeability to ions. This paper discusses descriptive tools and optimization of an impedance method of characterizing ion permeability. A physical model of conductive paper with ...
Multiphysics Simulations in Complex 3D Geometry of the High Flux Isotope Reactor Fuel Elements using COMSOL
J. Freels, and P. Jain
Oak Ridge National Laboratory
Oak Ridge, TN
A current research and development project is ongoing to convert the operating High Flux Isotope Reactor (HFIR) of Oak Ridge National Laboratory (ORNL) from highly-enriched uranium (HEU U3-O8) fuel to low-enriched uranium (LEU U-Mo) fuel. Because LEU HFIR-specific testing and experiments will be limited, we are relying on COMSOL to provide the needed multiphysics simulation capability to validate ...
P. Mercure, and R. Haley
The Dow Chemical Company, Midland, MI
ATM Research, Midland, MI
We demonstrate cartogram construction, where a geographical map is distorted to represent some measure, for example population, while trying to keep the shape of regions recognizable. We then apply this cartogram construction technique to optimize thermocouple locations. A heat generation and conduction model is used initialize the cartogram construction algorithm. A uniform distribution of ...
Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
This presentation gives an account of how COMSOL Multiphysics® software has helped to accelerate research and development. It has been used to simulate energy systems such as fuel cells, biomedical systems such as hydrogels and human skin, and monolithic catalytic converters. Each of these systems requires a mathematical model that can accurately represent the relevant physics, and which can be ...
Kildishev, A., Chettiar, U.
School of Electrical and Computer Engineering, Purdue University
Spatial Optical Analysis (SHA) of electromagnetic fields is a useful tool in analytical and numerical analysis of complex electromagnetic sources. A mathematical background for setting the Dirichlet boundary condition in the Finite Element Method (FEM) is shown.
van Schijndel, A.W.M.J.
Technische Universiteit Eindhoven, Netherlands
FEMLAB has standard facilities to export models to Simulink. Normally, the standard export works well if the solvers, available in Simulink, can handle the problem. However, if a model in FEMLAB needs special solvers, for example airflow or other non-linear problems, the standard export to Simulink is often not suitable, because the standard solvers of Simulink cannot handle such a problem ...
Butler, P.J.1, Ferko, M.C.2
1 Department of Bioengineering, Penn State University
2 Stryker Orthopedics Corporation
As biologists uncover the structural and functional complexity of living organisms, it is increasingly clear that mathematical models are needed to synthesize experimental data and predict biological responses to external stimuli. Bioengineers are well-suited to develop such models and to add mechanics, fluid flow and other physical cues to the understanding of biological structure and ...
Venkataraghavan is the Discover Category Leader, Water, working at the interface of Science, Technology and Business, for developing solutions and products for water purification at Unilever R&D, Bangalore. He joined Unilever in 2002 and earlier worked in interfacial science, materials science and electrodynamics for the Laundry Category. Venkataraghavan also had a stint with Unilever Technology ...
R. S. Wadhwa, T. Lien, and G. Monkman
NTNU Valgrinda, Inst. for produksjons- og kvalitetstek., Trondheim, Norway
FH Regensburg, Regensburg, Germany
The magnetic field gradient produced by an electromagnet gripper head depends on its design. Stochastic Methods offer certain robustness to the design optimization process. In this paper, Improved Discrete Particle Swarm Optimization (IDPSO) searching technique is applied to the shape and magnetic field gradient optimization of an electromagnet head. The magnetic field and forces are computed ...
Atomic Energy of Canada Limited, Mississauga, Ontario, Canada
RFSP-IST (Reactor Fueling Simulation Program) is a computer code used for the full-core neutronics design and analysis of CANDU® reactors. RFSP-IST calculates the static flux and power distributions in the core by solving the neutron diffusion equation in two energy groups. For validation purposes, results from RFSP-IST are often compared with those from other codes. This paper documents the ...