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Papers and Presentations from the COMSOL Conference 2018

At the COMSOL Conference 2018, scientists and engineers from around the globe showcased their multiphysics simulation projects. See how researchers in your industry are currently using numerical modeling to optimize designs, streamline processes, and improve products by browsing the technical papers and presentations below. Use the Quick Search tool to find a specific presentation or filter by application area or conference location.

ISBN: 978-0-9910001-6-6

2018 - Allx

Study of Bending Losses in Optical Fibers using COMSOL Multiphysics®

Ashitosh Velamuri [1], Krupal Patel [2], Ishan Sharma [2], Shakti Gupta [2], Pradeep Kumar Krishnamurthy [1],
[1] Center for Lasers and Photonics, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
[2] Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

In FTTH, optical fibers are frequently bent at the corners of the walls causing the propagating light in the fiber to radiate away which results in transmission losses and limits reach of the fiber network. A large number of studies have been reported in the literature to compute bend ... Read More

Adaptive Mesh Refinement: Quantitative Computation of a Rising Bubble Using COMSOL Multiphysics®

T. Preney [1], P. Namy [1], J. Wheeler [1]
[1] SIMTEC, Grenoble, France

The mesh is a key component in numerical simulations as it represents the spatial discretization of the model geometry. To accurately measure the variation of the unknowns, a relevant mesh should have a high density of degrees of freedom in regions where the norm of the gradient of the ... Read More

Design and Simulation of a MEMS-Based Ultrasonic Transducer for Viscosity Sensing Applications

Rahul Goyal [1], Divya Mohan Yadav [1],
[1] Indian Institute of Science, Bangalore, Karnataka, India

Technologies based on micro electro mechanical systems (MEMS) present advantages for rheological applications as they enable the fabrication of smaller sensors with faster response times. In this work we propose fabrication parameters and simulation of a MEMS viscometer. This research ... Read More

Light-tissue Interaction Modeling Using COMSOL Multiphysics® for Multi-layered Soft Tissues

Vysakh V [1], Sujatha Narayanan Unni [1],
[1] Indian Institutes of Technology Madras, Chennai, Tamil Nadu, India

Soft tissues are longest tissue structures found throughout a human body. It plays a vital role in connecting, providing support or surround other structures and organs of the body. Muscles, skin, tendons, ligaments, nerves, fibrous tissues, fat, blood vessels are commonly classified as ... Read More

Numerical Optimization of Active Heat Sinks Considering Restrictions of Selective Laser Melting

F. Lange [1], C. Hein [1], C. Emmelmann [1],
[1] Fraunhofer Institution for Additive Production Technologies IAPT, Hamburg, Germany

Parametric and topology optimization approaches are widely used techniques for performance improvement of components in terms of various objectives. Especially topology optimization often leads to complex geometries that are difficult or impossible to produce by conventional ... Read More

Modeling Confinement in Quantum Dot Solar Cells

J. Liu [1], M. Zubaer Hossain [1],
[1] Department of Mechanical Engineering, University of Delaware, Newark, DE, USA

The efficiency of the first and second generations of solar cell has hardly seen dramatically increase over the years, in which most PV cells cannot use about 55% of the energy of sunlight because a single material can not capture the entire spectrum of sunlight. To achieve the objective ... Read More

Two-Phase Flow Modeling of Metal Vaporisation under Static Laser Shot Using a Double ALE Method

Y. A. Mayi [1], M. Dal [1], P. Peyre [1], M. Bellet [2], C. Metton [3], C. Moriconi [3], R. Fabbro [1],
[1] PIMM Laboratory, UMR 8006 Arts et Métiers-CNRS-CNAM, Paris, France
[2] CEMEF Laboratory, UMR 7635 PSL Research University MINES ParisTech, Sophia Antipolis, France
[3] Safran, Paris Cedex, France

Additive manufacturing gathers technologies where near net shape components are produced by depositing successive layers of materials. Among these technologies, the Layer Beam Melting (LBM) process – often referred to as Selective Laser Melting (SLM) – is garnering industrial interest, ... Read More

Finite Element Simulation of Impulse Arc Discharge

A. Chusov [1], E. Rodikova [1], M. Pinchuk [2], Y. Murashov [3], Vladimir Frolov [3], Dmitriy Ivanov [3],
[1] Streamer Electric Inc., St.Petersburg, Russia
[2] Institute for Electrophysics and Electrical Power, St.Petersburg , Russia
[3] St.Petersburg Polytechnical University, Russia

Damages caused by lightning overvoltages remains to be an important issue for electrical industry, putting limitations for efficiency of transmission and distribution of electrical energy. Modern solutions for lightning protection such as multichamber arresters (MCA) for overhead ... Read More

COMSOL在金属氢化物贮氢罐传热传质模拟中的应用

李谦 [1], 林羲 [1], 朱琦 [2],
[1] 上海大学材料基因组工程研究院，上海，中国
[2] 上海大学机电工程与自动化学院，上海，中国

氢能燃烧值高且无污染，被认为是人类社会摆脱对化石能源依赖的理想能源。目前氢能应用的主要瓶颈是氢存储。而氢存储的主要方式中，金属氢化物因其安全性高，循环性能好的优点，得到广泛的研究。但由于金属氢化物吸放氢反应的热效应、粉末床的传热和传质特性较差等问题，贮氢罐的吸放氢速率下降，成为限制应用的主要因素。最近十几年，贮氢罐吸放氢过程的数值模拟及相关模型得到广泛的研究。通过数值模拟方法可以优化设计贮氢罐，以期满足实际应用中的需求，同时节约设计成本。本文面对贮氢罐的实际指标(吸氢速率1.5 L min-1)，采用COMSOL软件中的多孔介质传热、地下流动以及数学模块 ... Read More

Multiphysics Modeling and Development of Thermoelectric Generator for Waste Heat Recovery

Asutosh Prasad [1], Raj CN Thiagarajan [1],
[1] ATOA Scientific Technologies Pvt Ltd, Bengalore, Karnataka, India

Waste heat is inevitable in any heat engine while producing useful mechanical work. A lots of heat energy is often dissipated to surrounding environment as waste, which limits the system efficiency. In almost all of the industrial processes, half of the heat energy is turned into waste ... Read More

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