M.S. Yeoman, E. Sultan
Continuum Blue, Tredomen, Ystrad Mynach, United Kingdom
College of Technological Studies, PAAET, Adailiyah, Kuwait
The modeling of light propagation through multiple layers of biological tissue are assessed & compared to the theoretical predictions by Perelman at al. [94 & 95] of the most-favorable-path (MFP). The MFP on which photons will be found can be obtained from the path of the net flux propagation using the diffusion equation. The diffusion equation is valid when studying diffuse light propagation, ...
ENERSPACE Srl, Genoa, Italy
A model built with COMSOL Multiphysics® to exploit meteorological forecasts and instant outdoor meteorological data (temperature, solar radiation, moisture, wind speed and direcition, etc.) together with indoor ambient data (air temperature, radiant temperature of enclosures, etc), building parameters (mass, orientation, surface, structural composition, etc.) and historical consumption of ...
A. Daneryd, D. Ericsson
ABB Corporate Research, Västerås, Sweden
COMSOL AB, Stockholm, Sweden
For certain classes of scientific and technical computations the cloud may offer easily accessible, scalable, and affordable gigantic computing power. A power that for these classes may lead to a step change in model and analysis complexity compared to what is feasible with dedicated clusters and similar networked solutions. Acoustics with or without interaction with coupled physics fields ...
Application of System Identification Methods to Implement COMSOL Models into External Simulation Environments
A.W.M. van Schijndel and M. Gontikaki
Eindhoven University of Technology, Eindhoven, The Netherlands
Full coupling of distributed parameter models, like COMSOL, with the lumped models often lead to very time-consuming simulation duration times. In order to improve the speed of the simulations, the idea of using system identification methods to implement the distributed parameters models of COMSOL into external simulation environments, is explored. It is concluded that the system identification ...
A. Atalla, and A. Jeremic
McMaster University, Hamilton, Ontario, Canada
The inverse diffusion problems deal with the estimation of many crucial parameters such as the diffusion coefficient, source properties, and boundary conditions. Such algorithms are widely applied in many design problems in different physical, chemical, and biological fields. Recently, the estimation of the boundary properties, of the diffusion process, have attracted researchers. We first ...
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 ...
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 ...
L. Fromme, C. Schröder
Bielefeld University of Applied Sciences, Bielefeld, Germany
Multiphysics simulations play an important role in researchanddevelopment in almost all disciplines. Therefore it is necessary to teach them at the universities to provide the industry with well-trained graduate students. In our lectures about the finite element method we use a simple but rich enough example problem, which can be solved analytically. By comparing numerical and analytical ...
Lienhart, G., Gembris, D., Männer, R.
We have studied how the solution of partial differential equations by means of finite element methods could be accelerated using Field Programmable Gate Arrays (FPGAs). First, we discuss in general the capabilities of current FPGA technology for floating-point implementations of number crunching. Based on practical results for basic floating-point operators performance limits are outlined. ...
Institut für Geoökologie der Technischen Universität, Braunschweig
Kontinuierliche populationsdynamische Modelle lassen sich durch Systeme von gewöhnlichen Differentialgleichungen darstellen. Die räumliche Ausbreitung wird durch parabolische partielle Differentialgleichungen beschrieben, im einfachsten Fall durch eine Konvektions-Dispersionsgleichung. Für gekoppelte Populationen erhält man damit ein System von Reaktions-Diffusionsgleichungen mit erheblichen ...