See How Multiphysics Simulation Is Used in Research and Development

Aqui você encontrará apresentações realizadas nas Conferências de Usuários COMSOL de todo o mundo. As apresentações englobam pesquisas e produtos inovadores feitas por engenheiros e cientistas usando o COMSOL Multiphysics. Os tópicos abrangem uma grande gama de indústrias e aplicações, como elétrica, mecânica, escoamento e química. Use a função de busca "Quick Search" para encontrar apresentações na sua área de interesse.
View the COMSOL Conference 2018 Collection

Clean Energy Technologies: Growing Need for Multiphysics Modeling

Iouri Balachov
Senior Scientist,
SRI International, Menlo Park, CA, USA

Iouri Balachov is a Senior Scientist at SRI International (Menlo Park, CA) where he is leading development of Direct Carbon Fuel Cell technology for clean and efficient power generation from coal, biomass, and a wide variety of carbon containing fuels. Prior to SRI he was an engineer at ... Saiba Mais

Thermo-mechanical Modeling of Pu-238 Production Target at HFIR

C.J. Hurt [1], J.D. Freels [2],
[1] University of Tennessee, Knoxville, TN, USA
[2] Oak Ridge National Laboratory, Oak Ridge, TN, USA

The production model in the COMSOL Multiphysics® software makes use of the most up-to-date PIE data, material property inputs, and modeling methodology. The fully coupled thermo-mechanical equations are solved over the entire domain, significantly increasing the degrees of freedom ... Saiba Mais

Novel Sensor Technology for Point of Care Diagnostics

V. Djakov
Sensor Development Director
Microvisk Technologies Ltd

Dr Vladislav Djakov is the co-founder of Microvisk Technologies Ltd and the inventor of its MEMS-based Technology. Born in Belgrade, Serbia he came to UK in 1995 to pursue M.Sc. in Artificial Intelligence followed by Ph.D. in Micro-robotics. With over 14 years of extensive ‘hands-on’ ... Saiba Mais

Analysis Of The Design Criteria For Ancient Greek And Roman Catapults

K.M. Paasch
Center for Product Development, Mads Clausen Institute, South Danish University, Denmark

This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world from around 399 BC and a fully standardized ... Saiba Mais

Demonstration of Polymer Microring Resonator for Optical Biosensor using COMSOL

Mohd Haziq M.S.[1]
Mohd Hazimimin Mohd Salleh[2]

[1]Department of Information Systems, Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, Kuala Lumpur, Malaysia

[2]Department of Physics, Kulliyyah of Science, International Islamic University Malaysia, Pahang, Malaysia

In this paper, we use a COMSOL Multiphysics® model to demonstrate the potential use of polymer microring resonator structures for optical biosensing applications. When the refractive index of the area surrounding the microring resonator changes, there is a shift in the resonance ... Saiba Mais

Numerical Investigation of Power Deposition and Transport Phenomena in Helicon Plasma Sources

M. Magarotto [1], F. J. Bosi [1], P. de Carlo [1], M. Manente [1], F. Trezzolani [1], D. Pavarin [1], P. Alotto [2], D. Melazzi [1],
[1] CISAS "G.Colombo", University of Padova, Padova, Italy
[2] Department of Industrial Engineering, University of Padova, Padova, Italy

Standard approaches to reproduce the coupling of wave propagation and plasma transport inside a helicon plasma source rely on electromagnetic simulations coupled to either kinetic or particle-in-cell strategies to reproduce the plasma response. If the plasma density reach values higher ... Saiba Mais

Microwave Plasma for Waste Management new

Tressa Marquardt [1],
[1] Minnesota State, Mankato

Plasma gasification of biomass is emerging as an efficient way to reduce the carbon foot print of waste management while producing renewable energy. In general, gasification processes heats waste to a temperature at which it is partially ionized and converted to synthesis gas (syngas). A ... Saiba Mais

使用水平集方法对熔喷纤维运动进行模拟 new

曾泳春 [1], 郝习波 [1], 张潇敏 [1], 滕德芳 [1], 李辉 [1],
[1] 东华大学,上海,中国

熔喷是工业上用于制备微米纤维非织造布的一种工艺方法。在熔喷过程中,高聚物熔体经过高速、高温气流的拉伸,在接受装置上固化结晶形成微米纤维非织造布。由于熔喷材料具有很高的比表面积,因而具备良好的过滤性、吸附性、隔离性,可用于过滤材料、隔离材料、吸纳材料、口罩材料等领域。熔喷材料的优异性能是基于熔喷纤维的微纳米级的尺度,降低纤维的直径有利于提高熔喷产品的性能。由于纤维的拉伸细化发生在气流场的运动过程中,因此对纤维运动的研究具有重要意义。本研究将高聚物与气流所形成的混合体系作为两相流来处理。我们采用Comsol multiphysics 的水平集方法对熔喷过程的高聚物 ... Saiba Mais

Micro cooling channel heat sinks designed by topology optimization new

Hao Li [1], Xiaohong Ding [1], Dalei Jing [1], Min Xiong [1],
[1] University of Shanghai for science and technology

As a key component of MEMS, microprocessor with high computing performances is facing with severe thermal challenge due to the increasing power density, miniaturization as well as higher operating temperature requirements, and thermal management in corresponding fields has become one of ... Saiba Mais

电池的电化学极化 new

孙言飞 [1], 夏厚勇 [1], 韩威振 [1], 苗萌 [1], 樊煜 [1],
[1] 合肥国轩高科动力能源有限公司

在电池的性能比较过程中总存在温升、恒流比、容量保持率、倍率性等电性能比较,其中影响这些性能的重要参数就是电池的极化大小。然而现实使用中极化很难以量化,仅仅用直流或者交流内阻来表示还显得单一且不具有说服力,所以寻求一种能够量化的手段从而来衡量电池的极化具有重要意义。通过极化的占比分析还可以分析哪一种极化影响较大,从而为电池的设计优化提供可靠的方向指导。 鉴于上述描述,我们开发了一种充放电过程中极化仿真方法及模型。在COMSOL® 软件的一维模型中定义编辑正负极以及隔膜电解液处反应极化方程和积分,然后利用“电池与燃料电池模块 ... Saiba Mais