See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.
View the COMSOL Conference 2018 Collection

Secondary Electron Trajectories in Scanning Tunneling Microscopy

H. Cabrera [1], D. A. Zanin [1], L. G. De Pietro [1], A. Vindigni [1], U. Ramsperger [1], D. Pescia [1],
[1] Laboratory for Solid State Physics, Microstructure Research, ETH Zurich, Zurich, Switzerland

The recently developed technique Scanning Tunneling Microscopy in the Field Emission regime (STM FE) is based on the Russell Young's topografiner technology. The set-up is a no contacting device consisting of a sharp tip approached vertically to a conducting surface at variable distances ... Read More

Product Design of Macro Optical Clocking by Ray Optics

V. Vinothkumar[1], R. C. Thiagarajan [1],
[1] ATOA Scientific Technologies Pvt Ltd, Bangalore, India.

Optical cloaking was considered as fictional. Recent developments shows that macro scale optical cloaking is practical and functional. Brief review of ray optics based macro optical cloaking concepts are given. COMSOL Multiphysics® software simulations of cloaking devices are detailed. ... Read More

Silicon-Organic-Hybrid Independent Simultaneous Dual-Polarization Modulator: Device Theory and Design

Y. D'Mello [1], M. Hui [1], J. Skoric [1], M. Haines [1], A. Kirk [1], M. Andrews [1], D. Plant [1],
[1] McGill University, Montréal, QC, Canada

The Complementary Metal-Oxide-Semiconductor (CMOS) technology is a gateway to fabricating low cost electronic and photonic components to date. The Silicon-based nanophotonics platform leverages CMOS technology to fuel the effort to provide increasingly high-speed and high-bandwidth ... Read More

Coupled Fluid-Thermal-Structural Analysis of Motorized Spindle

Srinivas N. Grama [1], Mallinath Kaulagi [1], Ashok N. Badhe [1],
[1] Dr. Kalam center for innovation, Bharat Fritz Werner, Bangalore, Karnataka, India

The spindle is regarded as the heart of the CNC machine tool. Typically, the spindle is operated using the belt or gear drives to realize the relative motion between workpiece and cutting tool. However, they cannot be operated at high speeds due to power transmission losses, thus ... Read More

Optimum Insulation Thickness Distribution for Heat Loss Uniformity from Heated Corrugated Pipes

R. Bourisli [1],
[1] Kuwait University, Kuwait

Energy loss from fluids flowing across long distances presents a problem in many applications. In the oil and gas industry, for example, crude oil can change in viscosity when modest changes in temperature are realized. This can lead to added pumping power requirement and thus more heat ... Read More

Solar Radiation Effects on the Epoxy Adhesive Temperature Used to Bond CFRP to Concrete Beams

M. Breveglieri [1], B. Weber [1], C. Czaderski [1],
[1] EMPA - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland

The service temperature of epoxy-based adhesive used for structural strengthening of civil structures such as road bridges is an important issue and has to be taken into account when, for example, bonded CFRPs(Carbon Fiber Reinforced Polymer) strips are exposed to solar radiation and ... Read More

Modeling Water Immersion Thawing of Raw Tuna Fishes

S. Curet [1], O. Rouaud [1], J.M. Bonny [2], L. Mazuel [2],
[1] ONIRIS, CNRS, GEPEA, UMR 6144, Nantes, France
[2] IVIA – IMoST UMR1240 INSERM/UCA, Clermont-Ferrand, France

Thawing processes of raw tuna are widely used as a unit operation dedicated to the canning industry. At the industrial scale, the water immersion process remains the main relevant process for thawing large tuna fishes. The fish is then butchered and the flesh obtained is precooked before ... Read More

Nanoscale Heat Transfer and Phonon Hydrodynamics

A. Beardo [1],
[1] Universitat Autònoma de Barcelona, Barcelona, Spain

Several experimental evidences show that macroscopic description of heat transfer phenomena in semiconductors through Fourier law is no longer accurate when the system length and time scales are comparable with the mean free path and relaxation time of the energy carriers (phonons). In ... Read More

Development of Eddy Current Probe using FEM for Matte Level Detection in Pyrometallurgical Furnaces

A. Saleem [1], P. R. Underhill [1], D. Chataway [2], T. Gerritsen [2], A. Sadri [2], T. W. Krause [1],
[1] Department of Physics and Space Science, Royal Military College of Canada, Kingston, ON, Canada
[2] Hatch Ltd., Mississauga, ON, Canada

Pyrometallurgical furnaces are used to produce metals such as copper, nickel and platinum by the smelting process. During smelting, the undesired material components are separated from the desired metal resulting in the formation of a slag and matte/metal phase. The slag phase ... Read More


李振 [1], 毛冬麟 [1], 李晨 [1], 路鹏 [1],
[1] 中国石油大学(华东),青岛,中国

带有防腐层的金属管道被广泛应用到油气输送,金属管道表面缺陷的存在会对管道运行产生安全隐患,如何检测防腐层下金属表面缺陷一直是无损检测领域的难题;本文设计了一种基于电容成像技术的新型电容成像探头(图1),利用该探头对不同深度的表面缺陷进行线扫描研究,并搭建电容成像实验装置(图2)进行实验研究,最后对比分析仿真结果(图3)与实验结果(图4)。 计算方法:通过 COMSOL Multiphysics® 软件的 AC/DC 模块,利用背对背三角形电容成像探头对不同深度的表面缺陷进行线扫描。求电容值仿真中用到了“静电(es)”接口,涉及到了基本的电磁学方程。 结果 ... Read More