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.

A Modeling Study of Electrical Characteristics of Anisotropic Conductive Film Adhesives

R. Divigalpitiya
3M Canada Company, London, ON, Canada

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: the current is concentrated at the periphery of the contact. In practice, the current concentration has important implications. We further shed light on what ...

Multiple Solutions in the Theory of DC Glow Discharges

P. Almeida, and M. Benilov
Departamento de Física. Universidade da Madeira, Portugal

It was suggested long ago that a theoretical model of a near-cathode region in a DC glow discharge admits multiple steady-state solutions describing different modes of currrent transfer. Even the most simple self-consistent models should admit such multiple solutions. In the present work, these solutions have been calculated for the first time with COMSOL Multiphysics.

Gauss's Law; Teaching Platform Using the Magic Cube: Implementation by COMSOL Multiphysics

H. Ghali, and A. Hossam
Electrical Engineering Department, British University in Egypt, Cairo, Egypt

Most probably Gauss\'s law is considered as the first \"electromagnetic\" concept for early undergraduate physics and electromagnetic courses. In early study year, teaching Gauss’s law is usually performed based on two main components; 1) The use of simple symmetrical charge distributions where a correct expectation of the spatial behavior of the electric flux density is possible and 2) The use ...

Some Commonly Neglected Issues Which Affect DEP Applications

G. Zhang[1], V. Pandian[1], J. Brcka[2], J. Faguet[2], E. Lee[2]
[1]Clemson University, Clemson, SC, USA
[2]TEL U.S. Holdings, Inc., U.S. Technology Development Center, Austin, TX, USA

Dielectrophoresis (or DEP) has been exploited for various micro and nano fluidics applications like patterning, sorting and separation. However, there are several commonly neglected issues in quantifying DEP forces. Such negligence could potentially lead to wrong DEP force predictions and estimates, posing difficulties in correlating experimental observations with theories. Among the commonly ...

Determination of Electric Potential Distribution and Cell Resistance of a Uranium Electrorefining Cell

S.P. Ruhela, S. Agarwal, B. Muralidharan, B.K. Sharma, B.P. Reddy, G. Ravisankar, K. Nagarajan, C.A. Babu, and P. Kalyanasundaram
Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, Tamil Nadu, India

Electrorefining is an electrolytic process for obtaining high purity metal. In this process the impure metal is made anode and the high purity metal is deposited on cathode. Electrorefining is a key step in pyrochemical reprocessing of spent fuel from metal fuel fast reactors. Development of an electrorefining cell, in which processing of 10 kg of simulated spent fuel will be demonstrated, is ...

Design and Analysis of an Electrostatic Precipitator for a Diesel Particulate Filter - new

S. Manoj[1], R. Giri[1], S. Selvakumar[1]
[1]Rajalakshmi Engineering College, Chennai, Tamil Nadu, India

Gaseous exhaust of different industries contains dust particles of different chemical precipitates that are harmful for the environment. Electrostatic Precipitators are very often used in industries like power plant to filter their gaseous exhaust and to prevent the atmosphere to being polluted. Electrostatic Precipitators are very efficient in dust particle collection from the flue gas. ...

Modeling Magnetic Induction from Transient Events Impinging upon a Conducting Moon

H. Fuqua[1], G. Delory[1], I. de Pater[2], R. Grimm[3]
[1]University of California - Berkeley, Space Sciences Lab, Berkeley, CA, USA
[2]University of California - Berkeley, Berkeley, CA, USA
[3]Southwest Research Institute, Boulder, CO, USA

Electromagnetic sounding measurements utilize magnetic induction to constrain the interior geophysical properties of planetary bodies. Under some conditions, the Earth’s moon can be approximated by the response of a conducting sphere in a vacuum. Transient magnetic fields originating from the sun can interact directly with the moon, producing eddy currents that generate an induced magnetic ...

COMSOL在斜井和水平井阵列感应响应计算中的应用

仵杰 [1], 史盼盼 [1],
[1] 西安石油大学,西安,陕西,中国

斜井和水平井中阵列感应响应特性研究是测井数据正确解释的基础。在斜井和水平井中,井轨迹可能以任意角度进出水平地层,阵列感应测井响应计算是复杂的三维电磁场数值计算。基于 COMSOL Multiphysics® 软件的 AD/DC 模块开发完成斜井和水平井中的阵列感应响应三维数值计算方法。详细计算分析水平井和斜井中井位置、目的层厚、目的层电导率、围岩电导率以及目的层与围岩电导率对比度对阵列感应测井响应的影响。结果表明,水平井的阵列感应测井响应特性取决于层厚、电导率对比度、子阵列间距、仪器距层界面距离等多种因素。当层厚大于仪器分层厚度时,水平井响应与直井响应接近;当层厚小于仪器分层厚度时,水平井响应与直井明显不同,在仪器进出界面时,响应出现明显尖峰;给定层厚,与直井比较,短阵列差别小,长阵列差别大。斜井中,当倾角小于30º时,响应受倾角影响小。当倾角从 30º 到 80º 变化时 ...

Computation of Electrical Parameters for Different Conducting Bodies Using Finite Element Method

S. Musa and M. Sadiku
College of Engineering, Prairie View A&M University, Prairie View, TX, 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 shielded rectangular, cylindrical, and triangular transmission lines using COMSOL Multiphysics. Excellent agreement with some results obtained previously is ...

Electromagnetic Parameters Extraction for Integrated-Circuit Interconnects for Open Three Conductors with Two Levels Systems

S.M. Musa[1], M.N.O. Sadiku[1], J.D. Oliver[1]
[1]Prairie View A&M University, Prairie View, TX, USA

The accurate estimate of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of high-performance integrated circuits and integrated circuits packaging. In this paper, a new quasi-TEM capacitance and inductance analysis of multiconductor multilayer interconnects is successfully demonstrated using the finite element method (FEM) ...