During the pyrolysis and combustion of polymers, heat is released and is typically measured with a cone calorimeter to better assess the polymer’s flammability. Modeling heat release rate, as assessed by cone calorimetry, has not... COMSOL Conference 2008, Boston D. Statler1 , and R. Gupta2 1 Mid-Atlantic Technology, Research and Innovation Center, South Charleston, WV, USA 2 Department of Chemical Engineering, West Virginia University, Morgantown, WV, USA
A model of a horizontal atmospheric pressure chemical vapor deposition reactor was implemented to aid in the design of a laboratory based one. The model coupled momentum transport, energy transport, and mass transport phenomena to account... COMSOL Conference 2008, Boston T. Adams Naval Surface Warfare Center Crane Division, CRANE, IN, USA
Finite element analysis provides new insights into the electrical behavior of conducting adhesives. We show that at a contact between a spherical conducting particle and a flat conducting substrate the current distribution is non-uniform:... COMSOL Conference 2008, Boston R. Divigalpitiya 3M Canada Company, London, ON, Canada
Numerical simulations of the equation of transport were performed using an adsorption isotherm equation, and a simple cubic polynomial. The 1D COMSOL implementation included solutes being injected from one face of a homogeneous, isotropic... COMSOL Conference 2008, Boston A. Ortiz-Tapia, D. Lopez-Falcon, M. Diaz-Viera, S. Lopez-Ramirez, and J. Mendoza-dela-Cruz Instituto Mexicano del Petroleo, D. F., Mexico
We have simulated the copper ion concentration and internal electric field profiles in a dielectric material by solving the transient continuity/Poisson equations using COMSOL Multiphysics. We have shown that failure of dielectrics can be... COMSOL Conference 2008, Boston R. Achanta, J. Plawsky, and W. Gill Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
In this work, an analysis is presented for a 3-dimensional RF MEMS coil using the COMSOL AC/DC module in conjunction with the CAD import module. The realization of being able to produce such 3-dimensional RF coils allows for less surface... COMSOL Conference 2008, Boston T. Reissman, and E. Garcia Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
The press and blow (P&B) process is widely used to produce glass containers. While the P&B process has demonstrated to be capable of reducing container weight by as much as 33%, it can also induce the formation of micro-checks... COMSOL Conference 2008, Boston P. Ngankeu1 , and E. Gutierrez-Miravete2 1 EMHART Glass Research Inc, Windsor, CT, USA 2 Rensselaer at Hartford, Hartford, CT, USA
The global demand for sulfuric acid has been forecast to grow at an average of 2.6% per year from 2005 – 2010. The primary objective of this work is to analyze the performance of various heterogeneous catalyst shapes that have been... COMSOL Conference 2008, Boston A. Nagaraj1 , and P. Mills2 1 Department of Electrical Engineering and Computer Science, Texas A&M University, Kingsville, TX, USA 2 Department of Chemical and Natural Gas Engineering, Texas A&M University, Kingsville, TX, USA
The performance of simplified cylindrical cloaks with various material parameters was investigated. The performance metric was the overall scattering width of the cloak with various objects in the hidden region. COMSOL was used to... COMSOL Conference 2008, Boston J. McGuirk and P. Collins Air Force Institute of Technology, WPAFB, OH, USA
In some power electronic applications the available coolant temperature is close to maximum and controlling operating temperature becomes more challenging, for which new thermal management schemes must be considered. COMSOL predicts the... COMSOL Conference 2008, Boston K. Lowe 1,2 , and Rao V. Arimilli2 1 Oak Ridge National Laboratory, Oak Ridge, TN, USA 2 Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN, USA
In 1966, mathematician Mark Kac proposed the question "Can One Hear the Shape of a Drum?" in an article for American Mathematical Monthly. In attempting to resolve the Chesapeake Bay from an eigenfunctional approach, a one-to-one mapping... COMSOL Conference 2008, Boston K. McIlhany1 , and R. Malek-Madani2 1 Physics Department, United States Naval Academy, Annapolis, MD, USA 2 Mathematics Department, United States Naval Academy, Annapolis, MD, USA
The development and analysis of interconnects in inhomogeneous structures such as very large scale integration chips, printed circuit boards, and multichip modules are essential for next-generation electronic products. In this paper, we... COMSOL Conference 2008, Boston S. Musa, and M. Sadiku College of Engineering, Prairie View A&M University, Prairie View, TX, USA
Vorticella convallaria, a sessile peritrich ciliate having a contractile stalk, is regarded as a model biological spring because of its remarkably fast contraction. Because the cell body shrinks to sphere-like shape during contractions,... COMSOL Conference 2008, Boston S. Ryu1 , and P. Matsudaira2 1 Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA 2 Department of Biology and Bioengineering, Massachusetts Institute of Technology, Cambridge, MA, USA
Iouri Balachov is a Senior Scientist at SRI International (Menlo Park, CA) where he is leading development of Direct Carbon Fuel Cell technology for clean and efficient power generation from coal, biomass, and a wide variety of carbon... COMSOL Conference 2008, Boston Iouri Balachov Senior Scientist, SRI International, Menlo Park, CA, USA
Acoustic landmine detection is accomplished using a loud speaker as an airborne source to generate low-frequency waves that enter the soil at a certain incident angle. At a specific frequency, the landmine will "vibrate" at resonance,... COMSOL Conference 2008, Boston M. Mattingly1 , K. McIlhany2 , and R. Malek-Madani3 1 Applied Research Laboratory, The Pennsylvania State University, University Park, PA, USA 2 Physics Department, United States Naval Academy, Annapolis, MD, USA 3 Mathematics Department, United States Naval Academy, Annapolis, MD, USA
Accurate and efficient computation of electrical parameters for different conducting bodies represents an essential part of spacecraft modern integrated circuits. In this paper, we will illustrate modeling of inhomogeneous quasi-TEM... COMSOL Conference 2008, Boston S. Musa and M. Sadiku College of Engineering, Prairie View A&M University, Prairie View, TX, USA
As gas turbine temperatures and component life requirements continue to rise, it becomes increasingly important to have a good understanding of the operating temperatures of their components. The objective of this study was to explorate... COMSOL Conference 2008, Boston E. Kaufman1 , and E. Gutierrez-Miravete2 1 Pratt and Whitney, East Hartford, CT, USA 2 Rensselaer at Hartford, Hartford, CT, USA
Among the several types of capacitors, the double-layer and redox types have gathered increasing attention to address some of the heavy power demands of modern technology. In redox capacitors, charge is stored chemically via... COMSOL Conference 2008, Boston J. Sotero-Esteva1 , M. Rosario-Canales2 , P. Gopu3 , and J. Santiago-Avilés3 1 Department of Mathematics, University of Puerto Rico at Humacao, Humacao, PR 2 Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA 3 Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, USA
The propagation of shear (S) and compression (P) waves within the earth allows geologists to track seismic events and to identify subterranean structure. This work shows the strong effect of including the variation of wave speed through... COMSOL Conference 2008, Boston J. McKenna1 , M. McKenna1 , S. Yushanov2 , J. Crompton2 , and K. Koppenhoefer2 1 U.S. Army Engineering Research and Development Center 2 ACES of Columbus, LLC, Columbus, OH, USA
Modeling of 3D AC electro-osmotic pumps is relevant to the creation of portable or implantable lab-on-a-chip devices for mm/s tunable fluid flows attainable with battery scale voltages. In this analysis using COMSOL Multiphysics we... COMSOL Conference 2008, Boston M. Seiler1 , and B. Kirby2 1 Department of Engineering Physics, Cornell University, NY, USA 2 Department of Mechanical Engineering, Cornell University, NY, USA
