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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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Boston 2025

Terme recherché:

"electromagnetic*"

Prediction of Transformer Core Noise

R. Haettel[1], A. Daneryd[1], M. Kavasoglu[1], C. Ploetner[2]
[1]ABB Corporate Research, Västerås, Sweden
[2]ABB Transformers, Varennes, QC, Canada

Today, low noise is a mandatory feature for power transformers to comply with customer specifications and environmental regulations. Therefore, it is crucial to develop sound prediction tools with sufficient accuracy to avoid overkill margins in design and costly modifications after ... En savoir plus

Maximizing the Fatigue Crack Response in Surface Eddy Current Inspections of Aircraft Structures

C. Mandache [1], T. Theodoulidis [2],
[1] National Research Council Canada, Ottawa, ON, Canada
[2] University of Western Macedonia, Kozani, Western Macedonia, Greece

In-service detection of fatigue cracking in metallic aerospace structures relies on capable and efficient eddy current inspection procedures. For best results, inspections with surface scanning eddy current techniques are following rigorous procedures that indicate the instrument ... En savoir plus

基于等效热模型的三维封装快速热仿真技术

唐旻 [1], 冯强强 [1], 董一琳 [1]
[1] 上海交通大学，上海，中国

近年来，三维系统级封装技术逐渐成为人们的关注焦点，是下一代集成电路封装设计最有发展潜力的实现方案。然而，热管理是系统级封装技术需解决的关键问题。图1是典型的系统级封装结构，包含堆叠芯片、硅通孔、封装基板、热界面材料以及多层凸点结构。若对该结构的所有细节进行建模，将会消耗巨大的计算资源，导致分析效率非常低下。因此，本论文将封装中的硅通孔层以及凸点层等复杂结构进行等效处理，提取它们在水平和垂直方向上的等效热导率以及等效比热容、等效密度等参数。例如，在建模过程中，采用 COMSOL Multiphysics® 传热模块对硅通孔层的水平方向等效热导率进行提取，边界设置如图2所示 ... En savoir plus

Tunable Fano-Resonance in Terahertz Metamaterials

B. R. Sangala[1], H. Surdi[1], P. Deshmukh[1], A. V. Gopal[1], S. S. Prabhu[1], G. Rana[2]
[1]Tata Institute of Fundamental Research, Mumbai, Maharashtra, India
[2]Indian Institute of Technology Bombay, Mumbai, Maharashtra, India

Terahertz radiation (THz) is defined to have frequencies from 0.1-10 THz (1 THz=1e12 Hz). This radiation lies between microwave and infrared radiations in the electromagnetic spectrum. Metamaterials are designed periodic materials that show exotic properties to light and sound. ... En savoir plus

用于自由空间和光波导之间的高效率耦合器

赖耘 [1], 徐益超 [2],
[1] 中国江苏省南京市南京大学
[2] 中国江苏省苏州市苏州大学

In this work, we design a type of meta-prism which can provide high-efficiency coupling between free space and optical waveguides at infrared frequencies. The meta-prism is composed of an ABA multilayer structure with a fixed total thickness. By varying the filling ratio of the ... En savoir plus

Microwave Exposure System for In Vitro and In Vivo Studies

C. Nadovich[1, 2], W. D. Jemison[2], J. A. Stoute[3], C. Spadafora[4]
[1]Lafayette College, Easton, PA, USA
[2]Clarkson University, Potsdam, NY, USA
[3]Pennsylvania State University, Hershey, PA, USA
[4]INDICASAT AIP, Ciudad del Saber, Panama

A computer controlled microwave exposure system and specialized applicators were constructed for the purpose of facilitating accurate observations of microwave radiation effects on uninfected and infected biological tissue in vitro and in vivo under different electromagnetic modalities ... En savoir plus

Cancer Detection Using Coagulation Therapy with Coaxial Antenna

S. M. Ali[1], A. K. Jha[1], S. Mahapatra[1], M. Panigrahi[1]
[1]Trident Academy of Technology, Bhubaneswar, Odisha, India

Nearly seven lakh Indians die of cancer, while over 10 lakh are newly diagnosed with some form of the disease every year. Surgical resection is not always feasible in patients with hepatocellular carcinoma. Microwave Coagulation Therapy (MCT) has been used as an alternative to resection ... En savoir plus

Microwave Heating Simulation of Frozen Pie

F. Chen[1], T. Gulati[1], H. Zhu[1], A. K. Datta[1]
[1]Cornell University, Ithaca, NY, USA

This research studies the thermal effect of frozen pie heating in the microwave oven. Considering as composite material, the properties of pie derived based on its composition. Here the package, susceptor’s influence to the temperature distribution is also studied. En savoir plus

Simulation of Diffuse Optical Tomography using COMSOL Multiphysics®

S. A. M. Kirmani [1] , L. Velmanickam [1], D. Nawarathna [1], S. S. Sherif [2], I. T. Lima Jr. [1],
[1] Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND, USA
[2] Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada

We show that COMSOL Multiphysics® software can efficiently simulate the diffusion equation (DE) in diffusive optical tomography systems. Using our implementation, we simulate a frequency domain diffusive optical tomography system two order of magnitude faster than the standard Monte ... En savoir plus

Improved Understanding on Collection of Airborne Particles by Permanent Magnetic Assembly

M. Cheng [1], B. L. Murphy [1], G. M. Ludtka [1], P. Cable-Dunlap [1],
[1] Oak Ridge National Laboratory, Oak Ridge, TN, USA

Magnetic nanoparticles have diverse applications ranging from contamination control to medical diagnosis and treatment. Small airborne particulate matter (PM) is known to have adverse impacts to human health,, due to its high mobility when penetrating human respiratory systems [1,2,3]. ... En savoir plus

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