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Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Testing and Analyzing Complex Loading Conditions and Designs to Improve Subsea Cable Life

Tim Poole graduated from Cambridge University with a Masters degree in Engineering in 2008 and immediately joined JDR Cables Systems, a leading supplier of custom subsea oil and gas umbilical systems and renewable energy cables. He started in the Research and Development team, working on creating new products lines and testing umbilicals, which included fatigue, tensile and bend stiffness ...

Simulation and Analysis of a Borehole Transient Electromagnetic Reservoir Monitoring System

S.M. Dutta[1], A. Reiderman[1]
[1]Baker Hughes, Houston, TX, USA

Waterflooding and steam-flooding are used worldwide for EOR. Recently, CO2-flooding has attracted global attention as a means of EOR as well as for carbon capture and sequestration. These processes cause significant changes over time in the fluid composition of oil reservoirs. This paper demonstrates the feasibility of a borehole transient electromagnetic (TEM) system that can map the fluid ...

Can Oscillatory Convection Accelerate Signal Propagation in Simple Epithelium?

M. Nebyla[1], M. Pribyl[1]
[1]Institute of Chemical Technology, Prague, Department of Chemical Engineering, Prague, Czech Republic

We introduce a mathematical model of signal transmission in simple epithelial layers. The mathematical model consists of reaction-transport equations for extracellular ligands, cellular receptors, ligand-receptor complexes and a ligand releasing protease. We consider diffusion and nonstationary convective transport of protein ligands in the extracellular space. The study was carried out using ...

Development of Magnetic Field Components for the Polarisation Option of the Neutron Spectrometer FOCUS

L. Holitzner[1], U. Filges[1], J.P. Embs[2], T. Fennell[2], T. Panzner[1]
[1]Laboratory for Developments and Methods, Paul Scherrer Institut, Villigen, Switzerland
[3]Laboratory for Neutron Scattering, Paul Scherrer Institut, Villigen, Switzerland

We show a new, favourable space-saving method to host a neutron polarizer in the iron-containing monochromator shielding of a time-of-flight spectrometer for cold neutrons. In this poster you can learn e.g., how to create a robust, homogeneous, rectangular magnetic field (here realized by permanent magnet queues inside an iron tube). The time-of-flight spectrometer FOCUS at the spallation ...

Quantitative Analysis Design of MEMS Based Micropreconcentrator for Cancer Diagnosis

Sang-Seok LEE[1]

[1] Tottori University, Tottori, Tottori, Japan

We have proposed a high performance MEMS based microstructure array of micropreconcentrator (microPC) for breath diagnosis of cancer biomarkers. Our microPC has been designed based on quantitative analysis results, which gives explicit evaluation criteria for determination of microstructure array performance. We will present the quantitative analysis results performed by COMSOL Multiphysics ...

Advancements in Carbon Dioxide and Water Vapor Separations Using COMSOL Multiphysics® Software - new

J. Knox[1], R. F. Coker[1], C. F. Gomez[1], R. Schunk[1], R. Cummings[1]
[1]NASA Marshall Space Flight Center, Huntsville, AL, USA

NASA's Advanced Exploration Systems (AES) program is pioneering new approaches for rapidly developing prototype systems, demonstrating key capabilities, and validating operational concepts for future human missions beyond Earth orbit" [1]. Under the new Atmosphere Revitalization Recovery and Environmental Monitoring (ARREM) project [2], efforts are focused on improving current state-of-the-art ...

Sensitivity Analysis for High Temperature Proton Exchange Membrane Fuel Cell - new

A. Lele[1], N. Lodha[1], R. Srivastava[1], U. Bipinlal[1], A. Pandey[2], A. Paul[3]
[1]CSIR - National Chemical Laboratory, Pune, Maharashtra, India
[2]Reliance Industries Ltd., Reliance Technology Group, Navi Mumbai, Maharashtra, India
[3]CSIR - Central Electrochemical Research Institute, Chennai, Tamil Nadu, India

A Proton Exchange Membrane Fuel Cell (PEMFC) is an electrochemical device, which converts a part of heat from the formation of water into electricity. Each cell has a Membrane-Electrode Assembly (MEA) which is placed between two electrically conducting plates having gas flow channels. An MEA is made of a solid proton-conducting electrolyte sandwiched between two electrodes (anode and cathode). ...

COMSOL Multiphysics® Version 4

Svante Littmarck
President and CEO, COMSOL

Svante Littmarck is the CEO of the COMSOL group. He co-founded COMSOL in 1986. He holds a M.Sc. in Applied Mathematics from the Royal Institute of Technology in Stockholm. In 2004 he received an honorary doctoral degree from the Royal Institute of Technology.

Variation of the Frost Boundary below Road and Railway Embankments in Permafrost Regions in Response to Solar Irradiation and Winds 

N.I. Kömle[1] and W. Feng[2]
[1]Space Research Institute, Austrian Academy of Sciences, Graz, Austria
[2]State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou, China

We present COMSOL solutions for a coupled gas flow and heat transfer problem, which occurs particularly when traffic pathways are constructed in high altitude and arctic regions, where the underground is frozen soil. To avoid melting of the frozen ground (which usually leads to mechanical instability) one has to find suitable measures to keep the subsurface soil and the embankment suitably cool. ...

Modeling of Drying of Cellular Ceramic Structures: Coupled Electromagnetic and Multiphase Porous Media Model

A. Dhall[1], G. Peng[2], G. Squier[2], M. Geremew[3], L. Bogaczyk[2], J. George[3], W.A. Wood[3], and A.K. Datta[1]
[1]Biological and Environmental Engineering, Cornell University, Ithaca, New York, USA
[2]Manufacturing Technology & Engineering, Corning Inc., Sullivan Park, Corning, New York, USA
[3]Corporate Research, Corning Inc., Sullivan Park, Corning, New York, USA

Cellular ceramic substrates are extensively used for pollution control systems in vehicles. The manufacturing process of them can involve microwave drying. In this study, we describe the development of a modeling framework for the microwave drying process of these substrates. The transport model is implemented in COMSOL 3.5a using 4 PDEs: 1) Convection-Conduction for temperature, 2) Convection ...

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