See How Multiphysics Simulation Is Used in Research and Development


Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.
View the COMSOL Conference 2018 Collection

Beam Structure As an Acoustic Wave Sensor: A Study of the Effect of Sensor Design on Its Sensitivity to Noise

F. Akasheh[1], A. Biddle[1], W.S. Shepard Jr.[2], and B.B.B. Zhang[2]
[1]Tuskegee University, Tuskegee, AL, USA
[2]University of Alabama, Tuscaloosa, AL, USA

The detection and identification of the location of a sound source is commonly done using arrays of microphones. A recent new alternative approach has been proposed which involves the use of continuous structures, such as beams or plates, as acoustic wave sensors. The sound wave ... Read More

Scraping Non-Newtonian Power-Law Paint

C. R. Meyer [1], J. R. Rice [1],
[1] Harvard University, Cambridge, MA, USA

A similarity solution to Taylor's paint scraper problem for the flow of a non-Newtonian power-law fluid is presented. A shooting method numerical solution agrees with the results found for Newtonian fluids and is able to capture both shear-thinning and shear-thickening fluids. ... Read More

Prospects of Multiphysics Simulations to Steer the Development of High Brightness LED Technologies

T. Lopez [1], O. Shchekin [1],
[1] Lumileds, Eindhoven, Netherlands

The versatility of COMSOL Multiphysics® software has positioned it at competitive levels against other considered industrial-standard engineering software tools. This contribution is directed towards emphasizing the need of further developing the basic concepts of this versatile tool in ... Read More

Study of Particle Collection Using Magnets

M. D. Cheng [1],
[1] Oak Ridge National Laboratory, Oak Ridge, TN, USA

Airborne particles or aerosols are an unstable system with distributed properties among its individual particulate members. Its fundamental property such as particle size, composition, electrical conductivity, magnetic susceptibility, and morphology could change in response to ... Read More

激光闪射法测量碳化硅复合包壳的数值模拟 new

Wenjie Li [1], L. Vladhovic [2], Tsvetoslav Pavlov [2],
[1] Science and Technology on Reactor System Design Technology Laboratory, P.O. Box 502, 610213 Chengdu, China
[2] European Commission, Joint Research Centre Karlsruhe, P.O. Box 2340, 76125 Karlsruhe, Germany

本文介绍利用COMSOL传热模块对激光闪射法(Laser Flash Method)测量具有环形结构的碳化硅复合包壳的瞬态传热过程,进而获得对标准激光闪射法估算热扩散率/热导率的几何修正系数和温度修正系数。 碳化硅复合包壳由多层的单质SiC陶瓷基体、SiC纤维编织层组成。碳化硅复合包壳在高温蒸汽中抗氧化性远远优于锆合金,因此被视为未来核电站燃料棒包壳的理想解决方案。为了开展碳化硅复合包壳的性能分析,需要使用激光闪射法获得其在500K~1800K温度范围的热扩散率。问题在于,激光闪射法标准(ASTM E1461-13)规定的样品形状为薄圆片 ... Read More

Novel Sensor Technology for Point of Care Diagnostics

V. Djakov
Sensor Development Director
Microvisk Technologies Ltd
UK

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’ ... Read More

COMSOL在白天辐射制冷中的应用 new

周振贵 [1], 王昕 [1], 周军 [1], 胡彬 [1],
[1] 华中科技大学

  随着人类日常活动对制冷需求的不断增加,传统散热系统不仅消耗大量的能量,而且产生过多的废热和CO2的排放。外太空作为温度只有3K的冷源,热量通过大气透明窗口可以产生显著的辐射散热,特别是在白天仍然可以实现零能耗的降温。白天辐射制冷功率Pcool (Tr )可以写成: Pcool (Tr )=Prad (Tr )-Patm (Tatm )-Psun-Pnonrad   Prad (Tr )是材料辐射的能量,Patm (Tatm )是材料吸收大气辐射的能量,Psun是材料吸收太阳光的能量,Pnonrad是材料与环境通过传导对流交换的能量。   ... Read More

油基钻屑在螺纹推进式换热器中的流动与传热特性 new

赵飞 [1], 刘中良 [1], 李艳霞 [1],
[1] 北京工业大学

在石油开采的过程中会产生很多的废料残渣,油基钻屑就是其中的一种。油基钻屑成分复杂,含有多种矿物油,是国家明文规定的危险废弃物,因此需要对油基钻屑进行资源化无害化处理。本文利用多场模拟商用软件COMSOL对不同几何结构参数的螺纹推进式换热器进行合理建模,研究螺纹推进式换热器的关键结构参数、螺纹转速对管侧高温烟气和壳侧油基钻屑的流动传热、阻力性能、内套管形变规律的影响关系和敏感特性。结果表明:随着螺纹转速的增大,油基钻屑出口速度、表面传热系数和流动阻力增大,出口温度升高,最大轴向位移与最大径向位移均逐渐减小;同时发现,当雷诺数Re Read More

基于COMSOL的煤层气排采数值模拟 new

朱文侠 [1], 刘钰辉 [1],
[1] 中煤科工集团西安研究院有限公司

借助数值模拟技术及煤层气排采经验分析排采过程中流体流动运移规律,能够为煤层气井智能排采提供技术支持。本文以某煤层气井地质与开发工程为基础,借助COMSOL软件构建求解数值模型,实现了煤层气排采动态分析及排采制度优化。取得以下主要研究成果: (1)采用含压裂裂缝的Warren-Root物理模型,以达西渗流理论知识为基础,建立了封闭可求解的煤层气排水降压数学模型。 (2)利用二维面和三维长方体叠加的混合法构建压裂裂缝,利用混合法求取边界流量,解决裂隙通量计算误差,提高了计算效率和流量统计准确率。 (3)以参数化扫描研究方法为基础,优化了该井的排采制度 ... Read More

煤层气-致密气合采数值模拟研究及仿真App开发 new

李辉 [1], 陈冬 [1], 叶智慧 [2], 高添鑫 [1], 张佳亮 [3],
[1] 北京市昌平区中国石油大学(北京)石油工程学院
[2] 北京市昌平区中国石油大学(北京)安全与海洋工程学院
[3] 北京市昌平区中国石油大学(北京)非常规油气科学技术研究院

近年来,煤系气开采受到越来越多国家的关注。我国煤系气储量十分巨大,但其分布方式多以煤-砂互层为主,主要特点是煤层多(20-40层),单层厚度薄。若采用单层开采的方式,不仅成本高昂且收益低下。为经济高效的开采往往需要一口井贯穿十几个甚至几十个薄层区域,此时需要合采来提高效益。为了研究煤层气、致密气合采规律,基于煤层气的赋存和运移规律,综合考虑煤层气从煤层基质中解析、扩散,经由裂隙渗流到井筒的过程,结合煤层气在致密砂岩中满足达西渗流的特点,建立了耦合的煤-致互层储层两气合采数值模拟。通过采用有限元数值分析软件 COMSOL Multiphysics 进行数值求解 ... Read More