See How Multiphysics Simulation Is Used in Research and Development

In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.
View the COMSOL Conference 2018 Collection

Numerical Analysis of Copper Heat Sink with Different Micro Pin Fins

S. V. Jadhav [1], P. M. Pawar [1],
[1] SVERI's College of Engineering, Pandharpur, Maharashtra, India

Micro heat sinks can be widely used for cooling in modern microelectronic high heat flux components where the amount of heat generated sometimes exceeds the limit which the system can withstand. Microstructures when introduced into the channels of heat sinks in form of micro fins enhance ... Per saperne di più

Janus 颗粒自驱运动的数值模拟

崔海航 [1], 王雷磊 [1], 谭晓君 [1],
[1] 西安建筑科技大学,西安,陕西,中国

Janus 颗粒是由物理或化学性质不同的两部分所构成的颗粒的总称。由于其结构的特殊性以及自驱动特性使其在MEMS、药物传输等领域有着潜在的应用价值。本文基于COMSOL Mutiphysics® 4.3a 多物理场耦合模拟平台对不同形状的 Pt-SiO2 型 Janus 颗粒的在不同浓度 H2O2 溶液中的自扩散泳动进行了数值模拟,并进一步研究模拟了球形 Janus 颗粒的近壁面运动。 Per saperne di più

Modeling and Characterization of Piezoelectric Structures: From Bulk Material to Thin Film

M. Bavencoffe [1], N. Tembhurnikar [1], B. Negulescu [2], J. Wolfman [2], G. Feuillard [1]
[1] INSA Centre Val de Loire, GREMAN, UMR CNRS 7347, 3 rue de la Chocolaterie, 41034 Blois, France
[2] François Rabelais University, GREMAN, UMR CNRS 7347, Parc de Grandmont, 37200 Tours, France

With the development of micro and nanotechnologies, integrated structures based on piezoelectric thin films are widely investigated and their characterization become a crucial issue for the development of new applications. A laser interferometry is here used to assess the mechanical ... Per saperne di più

Pulsed Electric Field Based Material Removal in Microelectrical Discharge Machining

T. Roy[1],, P. Ranjan[2], , R. Balasubramaniam[2]
[1]Homi Bhabha National Institute, Mumbai, India
[2]Bhabha Atomic Research Centre, Mumbai, India

Micro electrical discharge machining (MEDM), a scaled down version of EDM process, is a micro machining process used to fabricate micro holes and intricate shapes in electrically conductive materials irrespective of its hardness. In this process, an electric spark is generated in the gap ... Per saperne di più

Electrochemical Machining with Nonsymmetric Suction of Electrolyte Flow

M. Hashiguchi [1], D. Mi [1],
[1] Keisoku Engineering System Co. Ltd., Tokyo, Japan

In electrochemical machining process, it is very important to control electrolyte flow field to remove contamination such as slug, or gas to be generated by the machining process as well as heat control for electrolyte, machining tool and work piece. To reduce the overcut of workpiece, ... Per saperne di più

基于 COMSOL Multiphysics 的水中等离子电弧放电的分析

Yiyi Zhan [1], 唐文虎 [2],
[1] 广州航海学院
[2] 华南理工大学

在过去的二三十年中,液体燃烧电弧被用来制造纳米碳结构。该方法利用电弧空间中存在的碳蒸气作为电极腐蚀的结果,在存在高温梯度的区域迅速冷却时形成碳纳米管和富勒烯。碳结构的形成速率和结构取决于等离子体环境和形成机制两个方面。目前的研究工作,等离子体环境的形成和从电极表面的碳蒸气的传输是用二维电弧模型计算研究的。利用流动气液界面的传热来确定水的蒸发速率,考虑到电弧辐射对水蒸发的贡献以及碳和水蒸气之间的化学反应。此项研究使用 COMSOL Multiphysics 等离子体模块及传热模块。 Per saperne di più

Simulation of Fourth-Order Laterally-Coupled Gratings

R. Millett, A. Benhsaien, K. Hinzer, T. Hall, and H. Schriemer
Centre for Research in Photonics, University of Ottawa, Ottawa, ON, Canada

Distributed feedback lasers improve the performance of standard Fabry-Perot laser designs by including a wavelength-selective grating that provides superior output, spectral purity and temperature stability. Laterally-coupled distributed feedback (LC-DFB) lasers with the use of higher ... Per saperne di più

Investigation of Stability of Current Transfer to Thermionic Cathodes

M. Benilov, and M. Faria
Departamento de Física, Universidade da Madeira, Funchal, Portugal

Current transfer from high-pressure arc plasmas to thermionic cathodes may occur in a diffuse mode, when the current is distributed over the front surface of the cathode, or in a spot mode, when most of the current is localized in one or more small areas. Spectra of perturbations of 3D ... Per saperne di più

Validation of the Acoustic Finite Element Model of a Very Light Jet Cavity Mock-up

F. Teuma Tsafack, K. Kochan, T. Kletschkowski, and D. Sachau
Helmut Schmidt University/ University of the Federal Armed Forces Hamburg, Germany

This paper presents an important step in developing a combined active noise- and audio system for a light jet. To prepare its installation both a wooden mock-up and a finite element model of the investigated cavity were created. Sensitivity analysis and key parameters selection were ... Per saperne di più

The Use of CFD Simulations in Learning Fluid Mechanics at the Undergraduate Level

Marc K. Smith
Professor of Mechanical Engineering, Georgia Institute of Technology

Simple, accurate CFD simulations using COMSOL Multiphysics are used in a senior-level undergraduate course as a means to explore a number of fluid flows with the intent of developing a deep understanding of the underlying fluid mechanical mechanisms involved in the flows. Students also ... Per saperne di più