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
MEMS and Nanotechnologyx

Design of Novel Recirculation System for Slow Reacting Assays in Microfluidic Domain

N.N. Sharma, and A. Tekawade
Mechanical Engineering Group, Birla Institute of Technology & Science, Pilani, Rajasthan, India

A simple design for a microfluidic flow system for use in mixing or reacting assays with limited sample availability has been proposed and analyzed using COMSOL\'s multiphysics simulation package. The design is based on differential electroosmotic flow concept which has facilitated a ... Read More

Design & Finite Element Analysis of Micro Electro Mechanical Capacitive Temperature Sensors

N. Z. Khan [1],
[1] Rutgers University, New Brunswick, NJ, USA

This paper presents the design and simulation of novel micrometer-scale capacitive temperature sensors, which could serve as a component for miniaturized wireless sensor nodes for the internet of things requiring structural flexibility and optical transparency. The proposed sensor design ... Read More

Theoretical and Experimental Validation of Micro Hot Embossing on Polymeric Substrates

F. Lai [1], N. K. Shivaprakash [1], J. Zhang [1], A. Panwar [1], J. Mead [1], C. Barry [1], Q. Truong [2],
[1] University of Massachusetts Lowell, Lowell, MA, USA
[2] US Army Natick Soldier Research, Development and Engineering Center, Natick, MA, USA

Micro hot embossing on a large area polymeric substrates using roll-to-roll (R2R) mode has been considered as one of the most promising technologies that can offer continuous fabrication of large area polymeric substrates. Besides continuous operation, roll-to-roll (R2R) process offers ... Read More

Computational Analysis of Evaporation in Tailored Microchannel Evaporators

S. Arslan[1], J. Brown[1]
[1]Lawrence Technological University, Southfield, MI, USA

The rapid increase in power densities of integrated circuits has induced a significant interest in new reliable and high heat flux cooling technologies. The implication of such growth is the increased need for more efficient and more compact cooling mechanisms. Promising research has ... Read More

Investigating the Use of a Piezoelectric Actuator for the Appendages of a Microrobot

J. Clark, and J. Clark
Purdue University, West Lafayette, IN, USA

We investigate the use of a piezoelectric actuator for the appendages of a microrobot. Possible uses may include micro assembly, mobile surveillance, etc. What is different about this microrobot is that it uses 2 degrees of freedom, low powered piezoelectric flexures, while attempting to ... Read More

Optical Manipulation of Microscopic Objects

R. Ozawa
Yokohama University

In recent years, optical manipulation using optical radiation pressure has been widely studied. In this study, the radiation pressure exerted on various kinds of microscopic objects with different laser beams was evaluated by COMSOL Multiphysics software. By changing beam shapes, ... Read More

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’ ... Read More

基于非共面叉指电极的MEMS电容式压力传感器 new

刘振宇 [1], 赵湛 [1], 杜利东 [2], 方震 [1],
[1] 中国科学院大学/中国科学院电子学研究所、北京、中国
[2] 中国科学院电子学研究所、北京、中国

针对MEMS电容式压力传感器的非线性和空腔引线问题,提出一种非共面叉指电极结构,叉指电极重叠面积变化反映电容变化,从而改善了传感器的线性度。此外,腔外设计的叉指电极还避免了复杂的制造工艺。 本案例第一个研究模拟了不同施加压力对MEMS电容式压力传感器输出特性的影响;第二个研究模拟了环境温度对MEMS电容式压力传感器输出特性、电场分布以及热应力和变形的影响。第三个研究模拟了加速度对MEMS电容式压力传感器输出特性、电场分布以及机械应力和变形的影响。模型同时使用了“AC/DC模块”的“静电”接口以及“结构力学模块”的“固体力学”和“膜”接口。 ... Read More

氮化铝钪/金刚石声表面波传播特性研究 new

马俊 [1], 钱进 [1],
[1] 天津理工大学

随着电子通信的不断发展和普及,对声表面波器件(SAW)的性能要求也逐渐提升。在器件不断变小,工作环境的不断恶劣的情况下,声表面波器件也需要更高的频率、更好的稳定性能以及更大的带宽等新的提升。对于传统的氮化铝/金刚石结构来说已经无法满足更高频率,更大带宽的要求,所以本文为了能设计具有更高的相速度和机电耦合系数的声表面波器件,使用comsol 有限元仿真中的MEMS模块,对掺钪的氮化铝薄膜进行了研究,通过实验证明氮化铝钪作为压电材料时能具有更好的特性。通过研究在四种激励模式下氮化铝/金刚石结构与氮化铝钪/金刚石结构随着压电材料厚度的变化 ... Read More

ZnO/金刚石结构单端谐振器电极反射研究 new

钱进 [1], 马俊 [1],
[1] 天津理工大学

近年来,随着智能手机的普及和移动通讯技术的不断升级,对高频高性能SAW器件的需求也出现了激增之势。由于具有高的声速,包含金刚石的多层膜结构SAW器件成为了人们研究的热点。多层膜结构除了要具有高的相速度和大的机电耦合系数外,还需要IDT具有大的反射系数来设计低损耗和小尺寸的SAW器件 ,而电极厚度是影响反射系数的重要因素。本文利用COMSOL中的压电设备模块研究了ZnO/金刚石结构中Rayleigh波的m1和m2模式在最大机电耦合系数处的电极效应。仿真了ZnO/金刚石结构单端谐振器声表面波器件,计算了不同电极厚度下SAW的相速度、机电耦合系数和反射系数 ... Read More