COMSOL Conference 2025 Proceedings
Collection of Papers, Posters, and Slideshows Accepted by the Program Committee
At the COMSOL Conference 2025, engineers, researchers, and scientists from around the globe showcased their use of modeling and simulation across all major industries and in academia. Use the Quick Search tool to find a specific presentation or filter by topic or event location.
ISBN: 978-1-7364524-3-1
Gigahertz (GHz) sensors based on spoof localized surface plasmon (SLSP) resonances have been demonstrated to detect various bio/chemical substances. However, quantitatively and contactlessly measuring tiny refractive index changes of toxic gases in GHz regime is still absent. Here, we ... 詳細を見る
Terahertz (THz) sensing has been attracting interest due to its capabilities for biological fingerprint and medical identification. However, achieving angle-tunable ultrahigh figure-of-merit (FOM) of THz sensing remains challenging due to the difficulty in realizing tunable resonances ... 詳細を見る
声谷赝自旋作为声学系统动量空间中频率极值对应的量子态，为声波调控提供了全新自由度；高阶拓扑绝缘体（HOTIs）拓展了传统体 - 边对应原理，是经典波调控的关键概念。然而，谷声子晶体（VSCs）中的 HOTIs 仅存在于单带隙中，限制了角态的多频选择性，不利于多频声通信器件设计。为此，本研究设计具有 C3 对称性的 “Y 型” 声子晶体，构建出双带 VSC，且其低、高频带隙内的拓扑相变完全一致，最终通过理论与实验实现了双带谷声子晶体中的高阶拓扑态，丰富了 HOTIs 在声学多频调控系统的应用，为多带声学器件设计提供了新路径。 在本研究全流程中 ... 詳細を見る
在LNG储罐内常压低温（-162℃）环境条件下，下层液态天然气与上层甲烷等气体（BOG）处于气液两相平衡状态。当储罐泵井底部LNG低温泵需要检维修时，出于安全考虑，需要向泵井内先通入氮气以吹扫置换BOG气体，在后者低于一定浓度后方可打开泵井上方井盖进行吊装作业。本研究建立了LNG储罐泵井中氮气置换BOG的二维动态模型，模拟气液相界面上方气体流动、混合与传质传热现象，并耦合了甲烷/氮气混合气体热力学模型、高温差下浮力效应与LNG在相界面的气化量，对模型关键参数的影响进行数值分析，如氮气流量、气液相界面高度和吹扫气体出口位置等。模拟结果显示，当吹扫氮气温度为20℃，流速为0 ... 詳細を見る
微纳尺度器件在芯片散热等应用中正面临严峻的传热挑战，因此需要研究材料在不同外场作用下的传热特性。本研究以 MEMS 结构为基础，构建了一种能够实现电压调控应变场的模型，以探索应变对材料热物性的影响。 我们设计了具有梳齿结构的 MEMS 模型，并在 COMSOL Multiphysics 中利用结构力学模块与 AC/DC 模块针对应变场调控进行多物理场耦合仿真（图1）。通过施加电压控制梳齿间的静电力，使器件产生应变场。由于结构复杂，直接解析计算较为困难，因此采用载荷递增法模拟不同电压下的应变分布。仿真结果表明，当电压达到约 200 V 时，梳齿结构产生约 ... 詳細を見る
The capacity degradation mechanism of lithium-ion batteries considering five aging factors is investigated by coupling the 0D thermal model with the P2D model and adding differential equations to the mathematical module. It is found that after multiple cycles of charging and discharging, ... 詳細を見る
Graphene, as a two-dimensional material with exceptional physical and chemical properties, exhibits highly tunable optical absorption within the visible spectrum. Its absorption is sensitive to polarization, the number of layers, and incident angles, making it an ideal candidate for ... 詳細を見る
Abstract Microstructure-enhanced discharges are critical for achieving higher plasma electron density and energy, offering significant potential in advanced plasma applications. A two-dimensional fluid model of pulsed dielectric barrier discharge was developed in atmospheric helium ... 詳細を見る
Electrogenerated chemiluminescence (ECL) bioassay has witnessed remarkable growth in biosensing and diagnostics. The understanding of the reaction mechanism within ECL is important for improving and designing sensitive ECL methods. Herein we developed a sidelong ECL microscopy and finite ... 詳細を見る
This paper introduces a multiphysics simulation framework for examining the impact of mechanical vibrations on lithium dendrite formation in lithium-ion batteries. We connected the lithium-ion battery, solid mechanics, and phase field physics interfaces using a custom model in COMSOL ... 詳細を見る