研究開発におけるマルチフィジックスシミュレーションの具体例
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COMSOL カンファレンス 2024 論文集を見る
在过去的二三十年中，液体燃烧电弧被用来制造纳米碳结构。该方法利用电弧空间中存在的碳蒸气作为电极腐蚀的结果，在存在高温梯度的区域迅速冷却时形成碳纳米管和富勒烯。碳结构的形成速率和结构取决于等离子体环境和形成机制两个方面。目前的研究工作，等离子体环境的形成和从电极表面的碳蒸气的传输是用二维电弧模型计算研究的。利用流动气液界面的传热来确定水的蒸发速率，考虑到电弧辐射对水蒸发的贡献以及碳和水蒸气之间的化学反应。此项研究使用 COMSOL Multiphysics 等离子体模块及传热模块。 詳細を見る
Bolometer is a thermal infrared sensor used for measuring the intensity of radiation via the heating of a material due to the radiations. A bolometer consists of an absorptive element, a thin layered material, connected to a thermal reservoir. The result is that any radiation received on ... 詳細を見る
Surface Plasmons (SP) or Surface Plasmon Polaritons (SPP) are electromagnetic excitations that propagate at the interface between a dielectric and a conductor, and are evanescently confined in the perpendicular direction to the propagation. They arise via coupling of the electromagnetic ... 詳細を見る
Metal-organic chemical vapour deposition (MOCVD) is a well-known process to produce high quality thin films that can protect, ennoble and functionalize metallic tools. To realize a high performance coating on a complex 3D mold surface, knowledge about the material formation from a ... 詳細を見る
Electroporation is a biotechnological technique which subjects cells to strong (~kV/cm), short (~ms) electric field pulses that open pores on the cells’ plasma membranes. Under the appropriate conditions, the pores mediate the passage of exogenous material into cells. If the pores ... 詳細を見る
Intervertebral discs (IVD) are fibro-cartilages situated between vertebrae providing their joint flexibility. They play a major role in the transmission and absorption of load through the spine. The disc can undergo progressive structural and quantitative changes in its composition and ... 詳細を見る
Since 2011, LATMOS has been involved in the development of Micro-ARES, an electric field sensor forming part of the DREAMS science payload of the ExoMars 2016 Schiaparelli entry, descent and landing demonstrator module (EDM). Micro-ARES is dedicated to the very first measurement and ... 詳細を見る
Magneto-Hydrodynamic (MHD) power generation systems were originally investigated starting from the fact that the interaction of a plasma with a magnetic field must take place at much higher temperatures than could be observed in a mechanical turbine. The main problems of traditional MHD ... 詳細を見る
摘要 目的：大气压非平衡等离子体技术在食品安全方面凸显巨大潜力。探究空气 DBD 等离子体对苹果表面细菌生物膜的影响。方法：利用 COMSOL 软件建立二维空气 DBD 仿真模型，通过设定细菌生物膜的电导率和介电常数，并结合泊松方程，计算整个空间的电场，利用等离子体输运方程实现粒子在苹果表面和电极之间的自洽传输，利用能量守恒方程计算电子温度。结论：(1) 传播特性表明当流注头部与生物膜的距离 1mm 时生物膜附近的电离有助于负流注的传播。(2) 生物膜的结构导致了 ROS 和 RNS (通过通量 flux 和时间流量 time fluence 反映)的非均匀分布。 ... 詳細を見る
High-intensity discharge lamps will in the foreseeable future be important light sources despite a growing market share of LEDs. Cost and energy efficient high frequency (300 kHz) operation is hampered by the excitation of acoustic resonances inside the arc tube, which results in low ... 詳細を見る