See How Multiphysics Simulation Is Used in Research and Development


Здесь представлены презентации, которые демонстрировались на конференциях COMSOL по всему миру. В презентациях рассказывается о передовых исследованиях и инновационных продуктах, созданных с помощью COMSOL Multiphysics. Исследования относятся к различным отраслям и областям применения, включая электрические, механические, гидродинамические и химические дисциплины. Чтобы найти презентации из нужной области, воспользуйтесь функцией быстрого поиска.
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Multiphysicsx

Multiphysics Simulation of a Self-heating Paraffin Membrane Microactuator

P. Lazarou[1], C. Rotinat[1]
[1]CEA LIST/DIASI/LRI, Paris, France

A grand variety of microactuator technologies and demonstrators has been introduced during the last years. Of particular interest are the microactuators based on phase change materials and especially paraffin wax, which can volumetrically expand up to 15%, providing high force actuation. ... Читать дальше

复合材料帽型结构件制造的硅橡胶芯模预制调型孔仿真分析

湛利华 [1], 李自强 [1],
[1] 中南大学机电工程学院,长沙,中国

复合材料帽型加筋结构在航空航天领域得到了广泛应用,硅橡胶芯模是实现其共固化成型的关键工装之一。预浸料固化加热过程中硅橡胶的热膨胀需要通过预制调型孔来消除,以保证帽型加筋结构的成型质量。本文通过 COMSOL Multiphysics® 建立了硅橡胶芯模预制调型孔热力耦合有限元分析模型(图 1),采用传热和结构力学模块对不同结构硅橡胶芯模进行计算机仿真,得出实现复合材料帽型加筋结构形性协同制造的硅橡胶芯模预制调型孔的最佳尺寸范围(图 2)。综合分析硅橡胶芯模受热膨胀的可能影响因素,建立了考虑体积修正系数的预制调型孔计算模型 ... Читать дальше

Simulation of the Flow of an Autonomous Spherical Ball inside a Pipeline

W. Chalgham [1], A. C. Seibi [1], M. Mokhtari [1],
[1] University of Louisiana at Lafayette, Lafayette, LA, USA

One of the limitations of pipelines performance and structural integrity assessment is the continuous inspection of possible leaks due to corrosion or other types of failure mechanisms. Efforts to develop new technologies started several decades ago where different inspection techniques ... Читать дальше

Photo-Biological Reactor for Organic Waste Consumption and Hydrogen Production new

L. F. de Souza[1]
[1]Universidade Federal do Paraná, Curitiba, Paraná, Brazil

A simple steady-state photo-fermentative biochemical model was developed using the COMSOL Multiphysics'® Transport of Diluted Species physics interface. A dimensionless model seeks optimal physical parameters based on given biochemical parameters found in literature. A parametric sweep ... Читать дальше

Fluid-Structure Interaction of a Double Curvature Arch Dam Under Seismic Loading by the Application of Added Mass Technique and Acoustic Elements new

R. Manikandan[1], P. Sultana[1]
[1]National Institute of Technology Silchar, Silchar, Assam, India

Fluid Structure Interaction (FSI) plays an important role in the seismic analysis and the design of Hydraulic structures. In this study, the acoustic finite element model is analyzed with impounded water considering appropriate boundary conditions between the water & the upstream face of ... Читать дальше

Thermal Study of Valve Regulated Lead Acid Batteries and Electronics Chamber Used in Stand-Alone Street Lighting Applications new

D. Groulx[1], J. Skaalum[1], T. Jamieson[1]
[1]Mechanical Engineering, Dalhousie University, Halifax, NS, Canada

This paper presents a study on the heat generation of Valve-Regulated Lead Acid (VRLA) batteries used in off-grid streetlighting applications from PoleCo, a Halifax based company. One goal of the project was to produce validated COMSOL® models of the enclosure that holds these VRLA ... Читать дальше

Design and Analysis of a Wetting Lens for the Pinhole Cameras of a Two Phase Flow System

A. K. Reddy[1], T. Satyanarayana[1]
[1]Lakireddy Balireddy Autonomous College of Engineering, Mylavaram, A.P., India

The present work reports the fabrication process of micro lens for pinhole cameras, modeled using COMSOL Multiphysics®, by satisfying the wetting properties. Wetting is a change in contact angle between the liquid and solid surface area. The wetting properties are clearly understood in ... Читать дальше

Deformation of Stamp Features with Slanted Walls During Microcontact Printing new

F. E. Hizir[1], H. M. Al-Qahtani[1, 2], D. E. Hardt[1]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA
[2]King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia

Microcontact printing is a method for depositing patterns of thin films or molecular monolayers on surfaces using a polydimethylsiloxane (PDMS) stamp for selective mechanical contact (Figure 1). Undesired deformation of the stamp features during printing affects printed pattern quality. ... Читать дальше

COMSOL Multiphysics® 在热发电用真空集热管设计中的应用

赵旭山 [1], 郝雷 [1], 蒋利军 [1], 米菁 [1], 杨海龄 [1],
[1] 北京有色金属研究总院,北京,中国

随着能源紧张、油价攀升,环境污染严重,利用可再生绿色能源又成为不懈努力的方向。槽式太阳能热发电技术具有兼容性强、对电网冲击小、性价比高、发电成本低、可存储可调度等特点,近年来得到了迅猛发展,其核心部件为高温太阳能真空集热管,如图1所示。本研究利用 COMSOL Multiphysics® 针对真空集热管真实工况下的动态过程开展研究,并在此基础上开展集热管结构的优化设计。 由图 1 可知:集热管在电站中服役工况下,槽面会聚的太阳光主要集中于集热管下半面,上半面接收的会聚太阳光较少;导热工质自吸收管一端进入,接收会聚太阳光辐照能量,从吸收管另一端流出,流入→流出过程中 ... Читать дальше

Design and Optimization of Gas Sensor Testing Chamber using COMSOL Multiphysics®

K.Govardhan[1], K.Narmada[2], Nirmala Grace[3]
[1]VIT University, MEMS & Sensors Division, School of Electronics Engineering, Vellore, Tamil Nadu, India
[2]VIT University, Sensor System Technology, School of Electronics Engineering, Vellore, Tamil Nadu, India
[3]VIT University, Center for Nanotechnology Research, Vellore, Tamil Nadu, India

This study aims at the design and optimization of a Gas Sensing Chamber. The design takes advantage of the multiphysics simulation capabilities of COMSOL Multiphysics® to incorporate various physics such as CFD, Micro fluidics, Solid Mechanics, Electro thermal effects etc. The ... Читать дальше