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 Conference 2024 論文集を見る
Battery grids are critical system used in automobile, renewable energy, medical devices and mobile phones. Research efforts are directed to increase energy density, longevity and reduce the cost. This paper is related to computational optimisation of lead acid battery for efficiency and ... 詳細を見る
The use of plasmonic effects to dramatically enhance the electromagnetic field near the surface of a metallic nanostructured surface has grown into a large research area in the effort to take advantage of the surface enhanced field. In this paper the electromagnetic field near a nano ... 詳細を見る
Most probably Gauss\'s law is considered as the first \"electromagnetic\" concept for early undergraduate physics and electromagnetic courses. In early study year, teaching Gauss’s law is usually performed based on two main components; 1) The use of simple symmetrical charge ... 詳細を見る
The axial injection torch (AIT) produces high-density plasmas by coupling microwave power to a flowing gas. The plasma is imposed by defining its electron density and temperature whose maximum are given by optical emission spectroscopy diagnostics. Our study of an AIT with COMSOL ... 詳細を見る
近年来，一些研究人员基于金属波导的结构色散实现了各向同性的波导超材料，并研究了其各种各样的应用。然而，各向异性的波导超材料却没有得到深入的研究。我们利用金属平板/矩形波导在TEm模式下的结构色散，并在波导内部周期性交替填充两种不同的电介质A和B，并辅以细金属线连接上下金属板，从而可以将整个波导系统等效成二维TM偏振下的各向异性有效介质。我们发现在金属波导内沿着A-B多层介质的两个光轴方向存在两个不同的截止频率。当工作频率处在这两个截止频率范围内时，整个波导系统等效后的有效介质等频率曲线呈现出双曲函数的形式，即实现了双曲型波导超材料；当工作频率在较高的截止频率附近时 ... 詳細を見る
It is well-known that metal nanoparticles (NPs) excited at the plasmon frequency not only exhibit peculiar optical properties (e.g., a peak in the extinction spectrum, an enhanced electromagnetic near-filed) but also heat up [1]. This phenomenon is highly investigated for medical ... 詳細を見る
Helicon Injected Inertial Plasma Electrostatic Rocket (HIIPER) [1] is a plasma thruster being researched at University of Illinois Urbana-Champaign. It has been shown in Figure 1. It involves a helicon source along with an Inertial Electrostatic Confinement (IEC) chamber. IEC is a fusion ... 詳細を見る
Microwave heating has many advantages over the traditional heating method, such as needing shorter time, saving more energy, and being easier to control. But there still are some problems.(1) Themal runaway still exists because the reflection and absorption of microwave by the reactants ... 詳細を見る
This paper presents the study of the simulation of mixed-mode S-parameter using COMSOL Multiphysics® RF Module. In addition, a COMSOL® application is also developed for the study of electrical connectors. We are interested in modeling electrical connectors used for data transmission ... 詳細を見る
Dehydrogenation of ethylbenzene with a magnetite catalyst has been performed with a fixed bed flow type reactor under microwave irradiation. Microwave heating showed a temperature gradient in the catalyst bed. We analyzed an electromagnetic field and heat transfer in the microwave cavity ... 詳細を見る