A. Weddemann, A. Auge, F. Wittbracht, S. Herth, A. Hütten
Bielefeld University, Germany
Particle-particle interactions are usually neglected when considering the behaviour of magnetic particle's so called magnetic beads in e.g. a microfluidic device. However, if the particle density exceeds a critical limit, this assumption might not lead to proper results anymore. In this paper the particle-particle interaction of magnetic beads in an external magnetic field will be discussed. It ...
Hemodynamic Therapy of Middle Cerebral Artery Vasospasm Guided by a Multiphase Model of Oxygen Transport
S. Conrad[1,2], P. Chittiboina, and B. Guthikonda
Department of Bioinformatics and Computational Biology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
Department of Biomedical Engineering, Louisiana Tech University, Ruston, LA, USA
Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, LA, USA
Cerebral vasospasm is a complication of subarachnoid hemorrhage and other neurosurgical emergencies that reduce blood flow to the brain. Part of the approach to management of vasospasm is to improve flow through the stenotic areas by reducing by decreasing blood viscosity and enhancing flow through the stenosis. To examine the interaction of these factors, we applied computational fluid dynamics ...
Towards the Modeling of Microgalvanic Corrosion in Aluminum Alloys: the Choice of Boundary Conditions
N. Murer, N. Missert, and R. Bucchheit
Fontana Corrosion Center, Ohio State University, Columbus, OH, USA
Sandia National Laboratories, Albuquerque, NM, USA
Aluminum alloys in near-neutral, mildly aggressive solutions, undergo damage accumulation during corrosion, mostly due to the presence of micrometer-sized constituent intermetallic particles (IMP) that create a microstructural discontinuity at which localized corrosion occurs. The Nernst-Planck equation with electroneutrality is used to simulate current and pH distributions resulting from ...
M. de Bonis, and G. Ruocco
DITEC, Universitµa degli studi della Basilicata, Campus Macchia Romana, Potenza, Italy
Heat and mass transfer involved in drying is studied by using COMSOL 3.4. The effect of air temperature on the performance of the drying process applied to fresh food slices is scrutinized. COMSOL’s flexible formulation is exploited by using special drying kinetics for the substrate, and by including a treatment of the dependence of the properties upon the residual moisture content. The model ...
M. Herring Jensen
Widex A/S, Vaerloese, Denmark
In this study we model the sound attenuation properties of a hearing aid earmold tube. The model includes thermoviscous acoustic effects and it couples structural vibrations to the external acoustic field. Moreover, the finite element domain is coupled at two boundaries with an electroacoustic model of a hearing aid and an acoustic 2-cc coupler.
Continental Automotive Systems, Frankfurt, Germany
Harald Biller studied mathematics and physics at Darmstadt, London, and Würzburg. In 1999, he received his PhD from Stuttgart University, specializing in functional analysis, topology, and Lie theory. He worked as a lecturer at Darmstadt University until 2004, when he became a development engineer with the automotive supplier Continental, one of the leading producers of electronic brake and ...
Development of an On-Line Wall-Fouling Sensor for Pipeline Transportation of Heavy Oil-Water Mixtures
S. Rushd, and R.S. Sanders
Chemical & Materials Engineering Department, University of Alberta, Edmonton, AB, Canada
A beneficial method for transporting highly viscous hydrocarbons (e.g. heavy oil and bitumen) through a pipeline is known as Lubricated Pipe Flow (LPF). A major challenge for this technology is flow instability caused by the formation of a wall-coating of oil or the thinning and/or loss of the lubricating water layer in the pipe. This issue can be addressed by using capacitance sensors to measure ...
Two-Dimensional Thermal Hydraulic Analysis and Benchmark in Support of HFIR LEU Conversion using COMSOL
J. D. Freels, I. T. Bodey, R. V. Arimilli, K. T. Lowe
: Oak Ridge National Laboratory
: University of Tennessee, Knoxville, TN
: Bettis Atomic Power Laboratory, West Mifflin, PA
The research documented herein was funded by a research contract between the Research Reactors Division (RRD) of Oak Ridge National Laboratory (ORNL) and the University of Tennessee, Knoxville (UTK) Mechanical, Aerospace and Biomedical Engineering Department (MABE). The research was governed by a statement of work (SOW) which clearly defines nine specific tasks. This report is outlined to ...
National Changhua University of Education, Changhua City, Taiwan
Huang-Ming Lee received his BS and MS degrees in Physics from National Changhua University of Education, Taiwan, in 1999 and 2001, respectively and PhD degree in Materials Science and Engineering from National Chiao Tung University, Taiwan, in 2006. He is currently a postdoctoral fellow at National Changhua University of Education. His research interests include the numerical simulations and ...
B.G. Sammakia, S. Madduri, and W. Infantolino
Binghamton University, Binghamton, NY, USA
COMSOL Multiphysics was used to simulate an experiment in which the hygroscopic swelling in an epoxy material was measured along a temperature ramp. A simultaneous solution was sought for temperature and moisture concentration distribution in a moisture loaded epoxy sample. Initially the multiphysics problem was broken down into two separate cases - transient heat transfer analysis and transient ...