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COMSOL Conference 2024 論文集を見る
It is a complex problem to calculate the photonic crystal fiber model, and the methods of plane wave expansion, Hermite-Guasssian function and beam propagation have been analyzed. Finally the multipole method is adopted for solving problem. The hexagonal air holes in cladding have been ... 詳細を見る
扬声器的失真问题一直受电声业界的关注,尤其是谐波失真,它是影响扬声器重放声音音质的主要因素之一。 本文提出了一种基于 COMSOL Multiphysics® 软件预测扬声器谐波失真的仿真分析方法。该方法需建立包括磁场、振动系统和声场等多个物理场的扬声器的全模型,给扬声器加载一单频电压信号,用瞬态分析的方法可求解得到该频率激励下的扬声器的多个重要物理量随时间的变化函数,如流经音圈的电流I(t)、音圈的受力F(t)、振动系统表面上任意点的位移x(t),以及声场中任意点的声压P(t)等。给扬声器加载一个时间长度为0.1s的单频电压信号,仿真分析所得的防尘帽顶点的位移曲线 ... 詳細を見る
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). ... 詳細を見る
There has been considerable interest in the electrostatic chucks (ESCs) in recent years. Wafer cooling by means of gas at the backside of wafers plays an important role in electrostatic chucks and it uses an electrostatic potential to secure the wafer. In this study, the correlation of ... 詳細を見る
A mathematical model is developed for the stripping of CO2 from rich solvent. The rich solvent (aqueous NaOH) is used in CO2 absorption from natural gas through gas-liquid hollow fiber membrane contactor. The polyvinylidene fluoride (PVDF) hollow fiber membrane was fabricated via ... 詳細を見る
The authors are currently investigating the use of bulk high temperature superconductors as trapped field magnets (TFMs) in order to increase the electrical and magnetic loading of an axial gap, trapped flux-type superconducting electric machine. In electric machines, the use of ... 詳細を見る
ELENA is a small cooler decelerator ring at CERN which will be built to increase substantially the number of usable antiprotons delivered to experiments for studies with antihydrogen and antiprotonic nuclei. COMSOL Multiphysics® software has been used to completely model the ELENA ... 詳細を見る
Pressure Swing Adsorption (PSA) and Temperature Swing Adsorption (TSA) are commonly used for separation/purification of gas mixtures in industrial processes. The cycle time of industrial TSA processes usually ranges from several hours to days. The reason for this long cycle time is the ... 詳細を見る
The rapid development of electronic devices leads to more demand for efficient cooling techniques. Porous media represent a convincing passive cooling enhancer due to its large contact surface area to volume ratio and intense mixing of fluid flow. In the present work, numerical studies ... 詳細を見る
Introduction Electromagnetic stimulation is a common therapy to support bone healing in cases of avascular necrosis or pseudarthrosis. An electrostimulative screw implant (Asnis III s-series screw in Figure 1) is used to stimulate bone regeneration in the treatment of femoral head ... 詳細を見る