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
2016 - Allx

2D Modeling of Elastic Wave Propagation in Solids Containing Closed Cracks

S. Delrue [1], V. Aleshin [2], O. Bou Matar [2], K. Van Den Abeele [1],
[1] Wave Propagation & Signal Processing Research Group, KU Leuven Kulak, Kortrijk, Belgium
[2] Institute of Electronics, Microelectronics and Nanotechnologies, Lille, France

Within the field of Non Destructive Testing (NDT) of materials, nonlinear ultrasonic techniques are becoming increasingly popular, since they provide extreme sensitivity in detecting the presence of incipient damage. However, the next step forward would be to fully characterize the ... Read More

用于中高端扬声器设计的完整仿真分析方法

陆晓 [1], 温周斌 [1], 徐楚林 [1], 岳磊 [1],
[1] 浙江中科电声研发中心,嘉善,中国

扬声器仿真分析方法越来越受到电声企业关注,已成为扬声器设计的重要手段和发展方向。要想设计中高端扬声器,就必须建立一套完整的仿真分析方法。 本文介绍一种基于 COMSOL Multiphysics® 的用于中高端扬声器设计的仿真分析方法。该方法不仅包含了扬声器磁路、振动系统(结构)和声场的耦合分析,还模拟了温度对磁性材料和振动部件材料特性的影响。由于扬声器振动部件材料的粘弹性等特性,因此必须建立更为准确的材料模型。利用 COMSOL Multiphisics 软件丰富的第三方软件接口和二次开发功能,经数据后处理可得到声障板等条件下的声压级、谐波失真和互调失真等。 ... Read More

Modeling Cracking in Quasi-Brittle Materials Using Isotropic Damage Mechanics

T. Gasch [1], A. Ansell [1],
[1] KTH Royal Institute of Technology, Stockholm, Sweden

An extension of the Solid Mechanics interface in COMSOL Multiphysics® is presented to analyze localized deformations of quasi-brittle materials, for example cracking in concrete. This is achieved by implementing an isotropic damage mechanics constitutive law, which is combined with both ... Read More

Numerical Model for Predicting Heat and Mass Transfer Phenomena during Cake Baking

P. Le Bideau [1], R. Cutté [1], P. Glouannec [1], J. F. Le Page [2]
[1] Univ. Bretagne Sud, FRE CNRS 3744, IRDL, F-56100 Lorient, France
[2] DPP, ADRIA Développement, Quimper, France

A transient two-dimensional axisymmetric model is implemented in COMSOL Multiphysics® software to simulate temperatures, moisture contents distributions and cake swelling during the baking of cake contained in mold. The medium is assumed to be a deformable porous medium containing three ... Read More

Electron Beam Crystallization of Amorphous Silicon Thin Films

S. Saager [1],
[1] Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology (FEP), Dresden, Germany

A promising method for low cost production of efficient silicon thin film solar cells is the electron beam physical vapor deposition (EB-PVD) of high purity amorphous silicon (a-Si) layers with high deposition rates up to 300 nm/s [1] followed by crystallization. This study focuses on EB ... Read More

Calculation of Inductance of Sparsely Wound Toroidal Coils

A. Pokryvailo [1],
[1] Spellman High Voltage Electronics Corporation, Hauppauge, NY, USA

Analytical methods used for inductance calculation of toroidal coils yield large errors in the case of coils sparsely wound on low permeability cores. Numerical field calculations can provide “exact” figures. We have outlined several simulation methods. Simplifications, assumptions, and ... Read More

无限长导线周围金属体电荷分布

罗强 [1],
[1] 西安石油大学,西安,中国

电力传送中经常遇到导线周围金属体连续分布的电荷的电场电势分布问题,其中线电荷的电场分布非常典型, 对于实际情况,当导体靠近导线,因物体形状的不同,其表面产生不同的电荷分布。 解决方案 1 实际情况是三维问题,而三维几何体表面电场分布很难推出解析解,分解成二维模型并验证其表面电荷分布,再通过 COMSOL Multiphysics® 建立三维模型进行仿真计算。 2 对于一般的有限元编程繁琐,计算量大,不可视化,在 COMSOL 中可以不用人工编程,通过绘图功能,可以绘出几何体表面电场线图,与解析解进行对比。 模型设计 1 二维模型中无限长导线用细长线代替 ... Read More

Implementation of a Porous Media Model for Simulating Pressure Development in Heated Concrete

B. Weber [1], D. Dauti [2], S. Dal Pont [2],
[1] Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
[2] Laboratoire 3SR, University Grenoble Alpes, Grenoble, France

When concrete is subjected to high temperature, capillary water evaporates and chemically bound water is released due to dehydration. This results in an increase of pore pressure, which is believed to be one of the mechanisms leading to spalling. Spalling of concrete is of high concern ... Read More

CFD Simulation of Pore Pressure Oscillation Method to Measure the Permeability of Tight Formations

M. Mokhtari [1], S. A. Madani [1], A. Seibi [1],
[1] Department of Petroleum Engineering, University of Louisiana at Lafayette, Lafayette, LA, USA

Accurate estimation of rock permeability and porosity play a crucial role in the evaluation of oil and gas reservoirs. This evaluation is, however, challenging in tight formations such as shale due to the slow transition of fluid in such formations with extremely-low permeability. To ... Read More

Thermomechanical Design of a Gas Turbine Reheat Combustor Experiment Using FEM Analysis with the COMSOL Multiphysics® Software

F. M. Berger [1], M. Eser [1], T. Sattelmayer [1],
[1] Lehrstuhl für Thermodynamik, Technical University of Munich, Munich, Germany

Enhanced operational flexibility and low levels of pollutant emissions are achieved with a sequential arrangement of premixed combustion stages in gas turbines for power generation. In the second – reheat – combustion stage, hot flue gases of approximately 1500K are enriched with fuel ... Read More