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

Iterative Electric Potential Adjustment of Damaged Naval Vessels Using the Onboard ICCP-System

C. Thiel [1], K. Neumann [1], C. Broecheler [1], F. Ludwar [2], A. Rennings [1], J. Doose [2], D. Erni [1],
[1] General and Theoretical Electrical Engineering (ATE), University of Duisburg-Essen, and CENIDE – Center for Nanointegration Duisburg-Essen, Duisburg, Germany
[2] Technical Center for Ships and Naval Weapons, Naval Technology and Research (WTD 71), Eckernförde, Germany

Naval vessels involuntary communicate with their surrounding environment via different signatures, which can be separated in acoustic, electric, magnetic, seismic and pressure signatures. The electric signature, also known as Underwater Electric Potential (UEP)-Signature is mainly caused ... 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

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

TiN/CdSe量子点生物陶瓷复合材料的制备及荧光研究

昌梦雨 [1], 白忠臣 [1],
[1] 贵州大学医学院

过去十几年里,量子点从材料科学到生命科学、从基础研究到实际应用都开展了广泛的研究。量子点在生物成像、光治疗、药物/基因转运、太阳能电池等领域均具有广泛的应用。通过调节量子点的表面性质,实现量子点与细胞相互作用的可控性是一个关键的问题。本文主要利用胶体化学合成的方法在油酸-石蜡的体系下制备了TiN/CdSe量子点的生物陶瓷复合材料,并研究了这种生物陶瓷复合材料在荧光发光方面的性质以及发光的机理,为后续使用其可见-近红外光热检测探究医学病变细胞有重要的作用。采用连续胶体化学法制备了TiN/CdSe量子点生物陶瓷复合材料。利用SEM、TEM和EDX对纳米复合材料的表面形貌 ... Read More

饱和冻土水热耦合数值模拟与试验验证 new

李智明 [1],
[1] 哈尔滨工业大学

冻融循环引起的破坏是季节冻土区渠道的主要病害,其发生与温度梯度和水分迁移有密切的联系。为了研究冻融循环作用下土体温度变化与水分分布,多场耦合理论应运而生。但目前存在的多场耦合模型大多采用了过多的参数,其中的一些参数甚至难以确定。因此本文基于Harlan流体动力学模型,以温度和孔隙率为变量建立了一个实用的多场耦合控制方程,然后采用COMSOL Multiphysics中的数学模块中的系数型偏微分方程(PDE)对土体温度场和水分场进行模拟,并与室内水分迁移试验进行对比,证明了该耦合模型的有效性。最后以北部引嫩工程渠道为例,建立模型试验,所得试验结果与模拟结果也是十分接近。 Read More

用于防腐层下缺陷检测的电容成像装置

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

Optimal PDE Control Using COMSOL Multiphysics

I. Neitzel[1], U. Prüfert[2], and T. Slawig[3]

[1]Technische Universität Berlin / SPP 1253
[2]Technische Universität Berlin / Matheon
[3]Excellence Cluster The Future Ocean, Algorithmic Optimal Control - Oceanic CO2-Uptake/SPP 1253

An optimal control problem (OCP) is studied to a PDE of elliptic type as well as state constraints. The resulting optimality system contains two PDEs, one algebraic equation and the so called complementary slackness conditions, i.e. dual products between function spaces. At this point, ... Read More

Modeling the Thermal-Mechanical Behavior of Mid-Ocean Ridge Transform Faults

E. Roland[1], M. Behn[2], and G. Hirth[3]
[1]MIT/WHOI Joint Program, Woods Hole, MA, USA
[2]Woods Hole Oceanographic Institution, Woods Hole, MA, USA
[3]Brown University, Providence, RI, USA

To investigate the thermal-mechanical behavior of oceanic transform faults, we calculate 3-D steady-state incompressible mantle flow and heat transport using COMSOL Multiphysics. Our model incorporates a nonlinear viscous rheology with a visco-plastic approximation to simulate ... Read More