Scopri come la simulazione multifisica viene utilizzata per ricerca e sviluppo
In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.
Visualizza gli articoli presentati alla COMSOL Conference 2020
Materials with an order variable in thermal conductivity as a function of temperature are desirable for thermoelectric heat energy recovery, building thermal insulation and solar thermal applications. Thermal Conductivity is an inherent material property. Engineering the fundamental ... Per saperne di più
The transformation of austenite (A) to ferrite (F) in steels, which is technologically important and of fundamental interest, still remains less well understood in some aspects. At intermediate undercooling F grows with a plate-like morphology (widmanstätten). Some calculations, which ... Per saperne di più
Introduction: Solver section of FEA plays a very important role; it takes the input from the preprocessor and solves millions of equations using numerical methods. Capability of any analysis tools can be measured based on the solver. Understanding the nature and operation of various ... Per saperne di più
Plasma Arc Welding (PAW) is one of the important arc welding processes commonly used in electronics, medical, automotive and aerospace industries due its high accuracy, finishing, and ability of welding any hard materials. It is an extension of Tungsten Inert Gas welding (TIG or GTAW). ... Per saperne di più
在新能源汽车中应用GaN表贴器件能够极大提升车载电源的功率密度，提高生产效率，而汽车中高温、高湿、高压的极端应用环境对器件所使用的环氧塑封料提出了更高的防潮耐温要求。本文首先基于菲克扩散定律，采用吸湿试验与COMSOL有限元仿真相结合的办法，对两种常用环氧塑封料的吸湿扩散特征进行了研究，得到相关的湿气扩散特征参数；然后利用COMSOL中的稀物质传递、固体传热、固体力学等模块，对TOLL外形塑封器件在湿热环境中的湿气扩散行为及湿热应力分布进行了模拟；最后基于实际应用，分别对两款环氧塑封料塑封的GaN TOLL器件进行了MSL以及HAST可靠性验证。研究结果表明 ... Per saperne di più
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 ... Per saperne di più
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 ... Per saperne di più
This study investigates the thermal deformation process in Surface Thermal Lensing (STL), a non-destructive technique used to characterize optical materials based on their absorption properties. A fused quartz sample (10mm10mm3.3mm) was modeled with adiabatic free boundaries on the upper ... Per saperne di più
To address the challenge of combining high filtration efficiency with thermal insulation, a 3D nanofibrous sponge with curly fibers, hierarchical porosity, and ultralow density was fabricated via electrospinning. The material exhibits excellent filtration performance, low air resistance, ... Per saperne di più
宽波段 X 射线望远镜（Wide band X-ray Polarization and imaging Telescope, WXPT）是新一代空间卫星探测项目，其科学目标是通过宽波段X射线观测，揭示黑洞，中子星等致密天体的高能辐射机制和宇宙中的极端物理过程。其预计装配多种类探测器组合探测至 500keV能段，其科学目标是通过宽波段X射线观测，揭示致密天体的高能辐射机制和宇宙中的极端物理过程。超导边沿转变探测器（Transition edge sensor,TES）因其极为优异的能量分辨性能，成为WXTP项目在3-60keV能段探测的有力竞争者 ... Per saperne di più