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Sehen Sie sich die Kollektion für die COMSOL Conference 2024 an
The present work introduces a new methodology, based on COMSOL Multiphysics® Application Builder, to account for the “beam trapping” effect in multiphysical modelling of laser welding. Incident intensities involved in laser welding processes are high enough to induce material ... Mehr lesen
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 ... Mehr lesen
Introduction: Domestic microwave ovens are widely used to heat food products, because of rapid and convenient heating. Nonuniform heating is the biggest issue in microwave heating process, which also causes food quality and safety issues. Microwave heating models are promising tools to ... Mehr lesen
Automotive industry needs smart technologies to enhance their torque capacity or clutching actions. MR fluid is one of the material whose properties can solve the issue of improvement in torque capacity of automobiles. In this paper MR clutch is designed and developed. The theoretical ... Mehr lesen
Plasma torches are used in processing of materials and in energy industry for producing plasma. In this work we use the Equilibrium DC Discharge physics interface of COMSOL Multiphysics® to model a DC non- transferred arc plasma torch, under hypothesis of local thermodynamic equilibrium. ... Mehr lesen
随着城市用电量的逐年增加,单相变压器连续运行时的损耗发热严重制约了其发展和应用。高温发热会加速绝缘老化和缩短设备使用寿命,甚至导致一系列故障问题,降低设备的可靠性。该问题涉及电-磁-热多物理场耦合,心损耗温升的准确计算至关重要,为此本文基于硅钢片磁化特性的测量数据,考虑铁心磁特性受应力影响,采用 COMSOL Multiphysics 多物理场仿真软件,通过 AC/DC 模块、固体力学模块和传热模块对单相变压器铁心的磁场、应力、损耗和温升分布进行研究。首先施加激励得到铁心磁场及损耗密度分布,最后将损耗值作为温度场的热源,进而计算铁心的温升分布 ... Mehr lesen
Dr. Christian Deville-Cavellin is a Research Engineer at Ugitech's Research Center, since 1995. Ugitech, member of the Schmoltz & Bickenbach group, is a stainless steel, long products producer. C. Deville-Cavellin is responsible for all research topics related to liquid metal ... Mehr lesen
Negative Refractive Lens (NRL) has shown that an optical system can produce images with details below the classic Abbe diffraction limit. This optical system transmits the electromagnetic fields, emitted by an object plane, towards an image plane producing the same field distribution in ... Mehr lesen
Svante Littmarck is the CEO of the COMSOL group. He co-founded COMSOL in 1986. He holds a M.Sc. in Applied Mathematics from the Royal Institute of Technology in Stockholm. In 2004 he received an honorary doctoral degree from the Royal Institute of Technology. Mehr lesen
传统的微波加热存在加热不均匀加热效率低等问题,对此本文提出了一种微波四端口扫频加热模型。通过使用四个端口馈入能量和使用变化的频率来提高加热的均匀性和效率。微波加热的过程是一个电磁场与固体传热场相互耦合的过程,通过COMSOL软件与MATLAB软件的联合调用实现了四个微波馈口的频率时变微波加热的数值分析。并通过NPA的计算优化了网格,最终通过实验验证了仿真的准确性与可靠性。 仿真模型如图1所示,被加热的物质为45mm45mm15mm的土豆块,土豆块放置在腔体底部中央的聚四氟乙烯托盘上。微波四个侧面个连接BJ26波导,微波通过波导传输到腔体中 ... Mehr lesen