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COMSOL Conference 2024 論文集を見る
The majority of electrical machines are designed to produce the rotary motion, there by exploiting the blessing of circularity which man has enjoyed since the discovery of the wheel. Electromagnetic forces may also be employed to produce the linear motion resulting in linear motion ... 詳細を見る
Industrial microwave ovens are widely used in agri-food and chemical applications. Resonant cavities are used to speed up chemical reactions and have the advantage to be small sized and efficient in terms of microwave distribution. These multimode cavities are considered as batch ovens ... 詳細を見る
Because of its high enthalpy of combustion, aluminum has been added to energetic materials. In this paper, a two dimension thermal model is developed and assessed to describe the interrelated processes of Aluminum particle oxidation by using the software COMSOL Multiphysics. The thermal ... 詳細を見る
High power Lower-Hybrid RF waves injected at in a Tokamak plasma can strongly modify the edge plasma. This is caused by ponderomotive forces pushing charged particles in an inhomogeneous oscillating electromagnetic field towards weaker field areas. On the Alcator C-Mod Tokamak, edge ... 詳細を見る
Microwave imaging has been recently proposed as a potentially useful screening technique for breast cancer. This method detects abnormalities in the tissue based on permittivity difference between breast normal and malignant tissue. In this method breast is illuminated by high frequency ... 詳細を見る
The classical optimization method has been applied to many design problems for electromagnetic systems. One of its major difficulties is related to meshing problems arising from shape modifications. In order to circumvent these kinds of technical difficulties with moving mesh problems, ... 詳細を見る
在电磁兼容领域中，除了电磁干扰还会存在毁灭性的电磁辐射危害。其中电磁辐射对燃油危害的研究关键在于掌握射频放电的击穿特性，为研究不同频率的击穿特性，本文基于电磁场和电路理论，以飞机油箱口结构为例构建了氩气射频放电前后的等效电路模型，并简要分析了射频放电规律。根据电磁场和电路理论，飞机油箱口放电结构等效为圆柱型交流电容，等效电路的并联电阻阻值随气体的导电性能变化而变化，能有效表征气体击穿电离程度的高低。仿真研究表明，相同激励电压条件下，频率越高，气体越容易击穿，等效并联电阻阻值越低。气体击穿电离程度随频率升高存在不连续放电、连续稳定放电、积累效应和雪崩效应四种不同的放电规律。 詳細を見る
Microwave drying of fruits and vegetables in a domestic oven has been found to result in large textural changes in the product such as puffing, crack formation and even burning due to the inhomogeneous heating of the microwaves. Microwave drying of potatoes is a complex interplay of ... 詳細を見る
随着碳纤维增强复合材料(CFRP)在航空等领域的应用规模逐渐扩大，其低电导率带来的雷击风险得到广泛关注，CFRP雷击防护设计已成为研究热点，而雷电环境多理场仿真技术也在CFRP雷击防护设计中逐步发挥作用。目前，针对含雷击防护（如铺设防雷金属网）的CFRP平板结构雷击直接效应仿真研究已有一定成果，但是，对于铺设防雷金属网的CFRP-金属紧固件连接结构的雷击仿真鲜有研究。 本研究以铺设防雷金属网的CFRP-金属紧固件连接结构为研究对象，借助COMSOL Multiphysics重点分析了连接结构遭受雷击时的电-热多物理场效应。 ... 詳細を見る
Exciting plasma in inductive mode is attractive due to the high electron density and the absence of ion interaction with the reactor walls. However, any real system excites plasma at low power in capacitive mode with strong interaction with the walls. The transition from one mode to the ... 詳細を見る