这里您可以找到在全球 COMSOL 年会上所有用户报告的演示文稿。这些演示文稿介绍 COMSOL 用户是如何使用 COMSOL Multiphysics 进行创新性研究和产品设计。研究主题涵盖了包括电气、机械、流体和化工等范围广泛的行业和应用领域。请使用“快速搜索”来查找与您的研究领域相关的演示文稿。

COMSOL Implementation of Valet-Fert Model for CPP GMR devices

T. Xu[1], C.K.A. Mewes[1], S. Gupta[2], and W.H. Butler[1]
[1]Department of Physics and Astronomy and Center for Materials for Information Technology, University of Alabama, Tuscaloosa, Alabama, USA
[2]Department of Metallurgical and Materials Engineering and Center for Materials for Information Technology, University of Alabama, Tuscaloosa, Alabama, USA

The Giant Magneto Resistance (GMR) effect is a quantum mechanical effect which can be observed in systems consisting of thin alternating ferromagnetic and non-ferromagnetic layers. Simulation using COMSOL allows the evaluation of the magneto-resistance ratio and the electrical resistances of realistic CPP-GMR devices and opens the possibility to study new device materials and designs.

Deep Desulfurization of Diesel Using a Single-Phase Micro-Reactor

G. Jovonavic[1], J. Jones[1], and A. Yokochi[1]
[1]School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon, USA

This paper describes the benefits of computational fluid dynamics in the development of a microreactor used in the desulfurization of aromatic compounds. It is crucial to verify diffusion and extinction coefficients to ensure accurate simulation results prior to experiments. COMSOL Multiphysics was used to model the behavior of all of the possible species present and reactions that may occur.

Effect of S-p Relation Model on DNAPL Migration Simulation Result

H. Ishimori[1], and K. Endo[1]
[1]National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan

To consider effective counter measures against ground water contaminated with dense non-aqueous phase liquids (DNAPLs) such as chlorinated solvents, it is first important to understand the mechanism of their migration in heterogeneous aquifer. In addition, numerical analysis models to simulate such a complex migration in heterogeneous aquifer are required. The displacement pressure, which is ...

Effects of Nonlinear Magnetic Properties on Magnetic Bonding Forces for Magnet Array Self-Assembly

S.B. Shetye, J.S. Agashe, and D.P. Arnold
University of Florida

The objective of this researh is to develop new, magnetically-directed, self-assembly approaches to enable three-dimensional structures to be formed in parallel from a heterogeneous mixture of parts of arbitrary size and shape.

Spatial Model of Glycolysis in Neutrophils

T.A. Hansen, and L.F. Olsen
Department of Biochemistry and Molecular Biology, University of Southern Denmark

In an attempt to understand the mechanism and function of NAD(P)H waves in neutrophils, we have constructed a spatial model of glycolysis in neutrophils. The model does give rise to traveling NADH waves, but there are significant differences between the experimentally observed waves and the waves generated by the model. Based on the model we therefore conclude that it is doubtful that the ...

Mathematical Modeling of Autoregulation using Finite-Element Method

Aleksandar Jeremic
Assistant Professor
Department of Electrical and Computer Engineering
McMaster University
Hamilton, Canada

In this presentation, cerebral blood flow (CBF) is modeled using a mathematical model, a statistical model and numerical examples. In the mathematical model, blood flow is described using Navier-Stokes equations. In the statistical model, the experiments or the data measurement process is simulated and to study how the noise in the measurements affects the ability to estimate the parameters, ...

The Unroutinary Loads on the LBT Adaptive Secondary Mirror

C. Del Vecchio
INAF-OAA, Firenze, Italy

The thin shell of the LBT Adaptive Secondary Mirror has been manufactured, optically polished, and delivered. The operations and tests required before finally mounting it on the telescope have to be run very carefully, as they imply loads completely different from the ones of the adaptive operational modes - studied in the past with very encouraging results. Deformations and stresses that occur ...

Dual Solutions for Viscous Mixed Convection Flows in a Vertical Circular Duct: A Numerical Benchmark

S. Lazzari1, A. Barletta1 , E. Magyari1,2, and F. Piccinini3
1Dipartimento di Ingegneria Energetica, Nucleare e del Controllo Ambientale (DIENCA), University of Bologna, Bologna, Italy
2Institute of Building Technology, ETH - Zürich, Zürich, Switzerland
3Biomedical Engineering, Engineering School of Cesena, Cesena, Italy

Forced and free convection flow in a vertical isothermal circular duct is studied by taking into account the internal heating due to viscous dissipation. The momentum and energy balance equations lead to a nonlinear boundary value problem that is solved numerically by means of the finite-element software COMSOL Multiphysics.For any prescribed value of the average velocity smaller than a maximum, ...

Geodynamic Models of the Vøring Volcanic Margin

T. Pedersen
Institute for Energy Technology, Kjeller, Norway

Volcanic margins are characterized by excessive magmatic activity. One of the most studied volcanic margins is the Vøring margin, offshore mid-Norway. The large volumes of magmatic rocks found there are believed to have been produced by the melting of an abnormally hot mantle. We use COMSOL Multiphysics to investigate the hypothesis that the source of this thermal anomaly was a mantle ...

Design of heat flux microsensor assisted by COMSOL for the study of energy transfer on Si and Cu thin samples

L. Bedra, N. Semmar, A.-L. Thomann, R. Dussart, J. Mathias, and Y. Tessier
GREMI, CNRS-Université d'Orléans, Orléans, France

A commercial heat probe is used for energy transfer measurements on copper and silicon substrates. To do so, the micro sensor has to be calibrated under high vacuum (~10-7 mbar), using a homemade black body as a heat source.Although the HFM is cooled at 5 oC, the solid surface temperature is unknown as the thermal contact resistance. Thus, COMSOL simulations are also used to obtain reliable ...

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