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.

Equation-Based Modeling: The Structural Contact Problem Solved by The Velocity Approach

O. Toscanelli, and V. Colla
Scuola Superiore S. Anna, Pisa, Italy

The contact between infinitely rigid body and deformable part is studied using the velocity as a dependent variable. A simple forging case is evaluated. The velocity approach is realized by means of using COMSOL with the Equation-Based Modeling. The contact model evaluated in this work is suitable to model the forging process. For a given mesh and element it is possible to choose the optimum ...

The initial simulation on characteristic of lithium ion cells using COMSOL soft

X. Liu, S. Wang, and L. Lu
Tianjin Institute of Power Source, Beijing, China

Tianjin Institute of Power Source (TIPS) is the first, the largest and most complete electrical energy technology research institute of China. We use COMSOL Multiphysics to simulate the lithium-ion batteries. It contains: Simulation on charge-discharge behavior of lithium ion cells; Simulation on thermal and safety of lithium ion cells; Design for lithium ion cells – collector, stress; From ...

Microwave Drying of Cellular Ceramic Substrates: A Conjugate Modeling Approach to Understand Surface Moisture Migration

A. Halder, and J. George
Corning, Inc.
Painted Post, NY

Microwave drying processes are critical components in the manufacture of cellular ceramic substrates and filters. The objective of this study is to develop a comprehensive model at a small scale and include all the possible physics that are important during microwave drying processes. Based on the results, conclusions are made on the importance of different factors in drying.

Modeling of Coupled Fluid Flow and Shear-induced Solidification Kinetics in Rheocasting of Aluminium Alloys

G. Maizza, and G. Lorenzatto
Politecnico di Torino
Dipartimento di Scienza dei Materiali ed Ingegneria Chimica
Torino, Italy

The model proposed by Schneider et al., for polymers is herein adapted in order to assess its suitability in elucidating the thixotropic behavior of aluminum alloys. The COMSOL Multiphysics program is employed to solve the inherent coupled mathematical problem, consisting in the kinetic ordinary differential equations and the momentum and energy transport partial differential equations. The ...

Optimized Cantilever-to-Anchor Configurations of Buckled Cantilever Plate Structures for Transducer Applications

A. Arpys Arevalo Carreno[1], D. Conchouso Gonzalez[1], I.G. Foulds[1]
[1]King Abdullah University of Science and Technology, Thuwal, Mecca, Kingdom of Saudi Arabia

The mechanical simulation and analysis of the cantilever-to-anchor configuration for an out-of-plane structure used in transducer applications is reported. The polymer-based Buckled Cantilever Plate “BCP” structure, gives the ability to orient an active device from a horizontal to a vertical position, once assembled. In this paper we compare four different cantilever-to-anchor configurations: ...

Predicting the Retention Time of Nuclear Reaction Products in the PSI Recoil Chamber Using COMSOL Multiphysics

R. Dressler[1], R. Eichler[1]
[1]Paul Scherrer Institute, Villigen, Switzerland

Introduction: The chemical properties of the heaviest elements (atomic number Z > 103) depend on the influence of the high nuclear charge to their electronic structure. Enhanced chemical stability of copernicium (Cn, Z = 112) and flerovium (Fl, Z = 114) was predicted already 40 year ago by Pitzer [1]. The challenge of chemical investigations of these elements is the tiny production rates of few ...

Análise da Aproximação para Baixa Absorção Óptica na Geração de Calor Via Laser em Sólidos Semitransparentes: Aplicação na Técnica de Lente Térmica - new

L. S. Herculano[1], G. V. B. Lukasievicz[2], O. A. Capeloto[3]
[1]Universidade Tecnológica Federal do Paraná, Santa Helena, PR, Brasil
[2]Universidade Tecnológica Federal do Paraná, Toledo, PR, Brasil
[3]Universidade Estadual de Maringá, Maringá, PR, Brasil

Neste trabalho utilizamos o software COMSOL Multiphysics® para resolver a equação de difusão de calor induzida por laser. Está equação é a base de técnicas fototérmicas em especial a técnica de Lente Térmica. Além de resolver a equação de difusão sem o uso das aproximações de amostra radialmente infinita e baixa absorção óptica, o COMSOL Multiphysics mostra-se como uma poderosa ferramenta no ...

2차원 및 3차원 맨틀 플룸의 벤치마크

Y. Kim, C. Lee [1]
[1] Department of Earth and Environmental Sciences, Chonnam National University, South Korea

최근의 수치모델링 연구들은 맨틀 플룸(mantle plume)이 배호(back-arc)지역의 분지 및 산맥(basin and range)과 유사한 지구조를 형성시키는 성인임을 제시하였다. 섭입 슬랩 후퇴(slab roll-back) 현상에 의해 지각에 가해지는 인장력과 지각 아래로부터 상승하는 뜨거운 맨틀 플룸으로 인한 지각 강도 감소가 더해져 배호 지역에 분지를 형성시킨다는 것이다. 이처럼 분지 형성 작용에 있어 맨틀 플룸의 역할이 중요해짐에 따라, 수치모델링의 필요성이 커지고 있기 때문에 초기 연구로써 우리는 2차원 및 3차원의 맨틀 플룸 수치모델링을 수행하였다.

The Effect of Induced Electron Diffusion on the Optical Properties of Plasmonic Nanostructures

Changyin Ji [1], Qingfan Shi [1], Yongyou Zhang [1], Ning Zheng [1], Liangsheng Li [2]
[1] Beijing Institute of Technology, School of Physics, Beijing, China
[2] Science and Technology on Electromagnetic Scattering Laboratory, Beijing,China

Recently, the researchers usually use the hydrodynamic Drude model (HDM) to investigate the nonlocal optical response of metallic nanostructure. The advantage of the HDM is easy to implement numerical calculation for larger and more complex-shaped nanoplasmonic structures. For the HDM, it is predicted that the nonlocal response blueshifts the resonance peak, modifies the electric field ...

基于COMSOL的电容成像传感器仿真研究

李振 [1], 李晨 [1], 符嘉明 [1], 曹松 [1], 王克凡 [1],
[1] 中国石油大学(华东)、青岛、山东、中国

本文针对电容成像传感器仿真分析的难点,以 8 极板电容成像传感器为例,建立了电容成像传感器的三维有限元仿真数学模型,详细介绍了如何使用 COMSOL 软件对电容成像传感器进行三维仿真,后处理结果表明8极板电容成像传感器能检测到有机玻璃内部 7 个不同深度的缺陷,验证了电容成像检测技术的可行性。除此之外还运用 COMSOL 对 8 极板电容成像传感器的电容值进行提取分析,并与实验结果相对比,结果表明两者的检测结果相吻合。此方法方便了电容成像检测技术正问题的研究,为运用COMSOL软件对电容成像传感器的性能分析与参数优化提供了依据。