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

Simulation of a Piezoelectric Loudspeaker for Hearing Aids and Experimental Validation new

G. C. Martins[1], P. R. Nunes[1], J. A. Cordioli[1]
[1]Federal University of Santa Catarina, Florianópolis, SC, Brazil

The use of piezoelectric materials in hearing aid loudspeakers, also called receivers, presents technical and economic advantages such as reducing the number of parts of the system and its manufacturing cost. However, the performance of such systems is still not competitive when compared ... Read More

Uncertainty Quantification: What it is and Why it is Important for Multiphysics Simulations

P. Qian [1, 2],
[1] University of Wisconsin - Madison, Madison, WI, USA
[2] SmartUQ, Madison, WI, USA

Uncertainty appears in many aspects of physical simulations including stochastic design parameters, hard-to-specify input distributions, probabilistic boundary and initial conditions, and unknown geometries. Uncertainty Quantification (UQ) has emerged as the science of quantitative ... Read More

Simulation of Gas Injection with the Level Set Method

J. E. Rivera-Salinas [1], A. Cruz-Ramírez [1]
[1] National Polytechnic Institute - ESIQIE, Department of Metallurgy and Materials, Mexico

The physical mechanisms that operate in gas injection are complex, since the bubble formation at submerged orifices involves a wide range of length and time scales, bubble coalescence occurs, rapid pressure variations around the gas bubble produce the wobbling of the bubble, as well as ... Read More

Numerical Simulation of Quasi-steady-state Gas Flow in a Landfill

Q. Zheng [1],
[1] Zhejiang University, Hangzhou, Zhejiang, China

Landfill is currently the most dominating method to dispose wastes, which are caused by the lives of residents and constructions of cities and towns. Because of large amounts of organic substances in landfills, they will undergo continuous microbial degradation, which generates a lot of ... Read More

Fluid Coupling Effects Of An Array Of Oscillators Vibrating In Close Proximity To A Solid Surface

A. K. Manickavasagam [1]
[1] University of Canterbury, New Zealand

High speed non-contact Atomic Force Microscope (AFM) comprising a single cantilever beam is used to track the motion of live-cells as it ensures no damage to soft biological samples [1]. PRONANO arrays [2] consisting of multiple cantilever beams have been used to achieve faster scan ... Read More

Product Design of Macro Optical Clocking by Ray Optics

V. Vinothkumar[1], R. C. Thiagarajan [1],
[1] ATOA Scientific Technologies Pvt Ltd, Bangalore, India.

Optical cloaking was considered as fictional. Recent developments shows that macro scale optical cloaking is practical and functional. Brief review of ray optics based macro optical cloaking concepts are given. COMSOL Multiphysics® software simulations of cloaking devices are detailed. ... Read More

Influence of Non-Newtonian Blood Viscosity on Wall Pressure in Right Coronary Arteries with Serial Stenoses

B. Liu [1]
[1] Monmouth University, West Long Branch, NJ, USA

Three dimensional mathematical models are developed to simulate the blood flows in patient specific right coronary arteries with two stenoses. Simulations are carried out with various flow parameters under physiological conditions. Both Newtonian and non-Newtonian blood viscosity models ... Read More

Finite Element Analysis of Contact Studies of Radio Frequency MEMs Switch Membranes

J. Liu [1], V. B. Chalivendra [1], C. Goldsmith [1], W. Huang [1]
[1] University of Massachusetts - Dartmouth, Dartmouth, MA, USA

Radio frequency (RF) micro-electro mechanical system (MEMS) switch works in on/off modes controlled by electrostatic forces. In off mode, rough surfaces of electrodes come into a contact. Membrane contact surfaces have complex surface roughness patterns and the mechanical contact problem ... Read More


董尼娅 [1], 倪富健 [1],
[1] 东南大学

车辙是一种在高温天气下会迅速发展的沥青路面病害,严重影响行车安全。由于沥青混合料是温度敏感性材料,其力学参数将随温度发生改变,因此,要对车辙进行准确预估,就必须获得路面结构内实时变化的温度场。 建立一个三维路面结构,分为六个结构层,分别定义各层的材料参数;选择传热模块中的表面对表面辐射传热,并在环境设置中选择路面结构所处地区的气象站数据;然后添加一个外部辐射源,源位置为太阳,并输入被辐射位置的坐标;设置路表面为漫反射表面,且与外界进行强制对流换热,侧面为热绝缘,底部为恒温。将漫反射表面中的表面发射率与吸收率设为变量,在计算中进行参数化扫描 ... Read More

COMSOL® Application Builder Lets End-Users Harness the Power of Numerical Modeling and Simulation

J. Speyrer [1], A. Maurer [1], D. Enfrun [1], R. Rozsnyo [2],
[1] Kejako SA, Plan les Ouates, Switzerland
[2] MNCM/HES-SO, Geneva, Switzerland

Kejako is developing a non-invasive solution for demanding presbyopia patients seeking to keep their quality of life through the compensation of visual accommodation decay. The company has already developed the first and proprietary 3D parametric model of the complete eye. The model ... Read More