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
Electromagnetic force and density in the electric-machinery dynamic system are fundamental forces which cause physical phenomena such as structural deformation, vibration, noise etc. But when two materials are contacted, electromagnetic contact force and distribution by conventional ... 詳細を見る
Electromagnetic shearing (EMS) is a high speed sheet metal shearing system where the workpiece is fractured under a pulsed electromagnetic force. It can be regarded as an extension of electromagnetic forming[1-2]. The basic shearing principle is that a huge repulsive electromagnetic ... 詳細を見る
The paper reports on an electromagnetic field study of a 765 kV switchyard. The study is performed using COMSOL Multiphysics® software. The study involves geometric modelling, finite element analysis, and numerical solution of the linearized equations. For the system studied, it was ... 詳細を見る
We present the utilization RF module of COMSOL Multiphysics® for understanding three different types of wave guidance mechanisms in photonic crystal fibers (PCFs), like modified total internal reflection, Bragg’s reflection and resonant trapping of defect mode at Dirac frequency. ... 詳細を見る
Electric, magnetic and electromagnetic (em) methods are widely used to monitor active volcanoes. A review of such applications is presented in Johnston (cit). Em signals were recorded in correspondence of numerous volcanic eruptions, for example in the case of the Mt. Unzen in Giapppone, ... 詳細を見る
Examples of Electromagnetic processes are presented: (1) cold crucible, (2) electromagnetic pump, (3) DC electromagnetic brake. A combined approach by using multiphysics modeling with Comsol and experimental validation is used in order to give some guidelines for process improvement and ... 詳細を見る
Electromagnetic shielding design is usually approached referring to nominal values of the main parameters. This could lead to malfunctioning devices and its performance differ widely from what was really aimed at or, worse, the final design product could even be physically unrealizable. ... 詳細を見る
DEMETER is a magnetic field replicator. This system is designed to deceive anti tank mines. Numerical simulation (using COMSOL Multiphysics® software) allows to indicate DEMETER's performance in various environment and various configurations. The study of the magnetic field provide also ... 詳細を見る
Solid-state magnetic refrigeration near room temperature, based on the magnetocaloric effect (MCE), is being investigated as an environmentally friendly and sustainable alternative to traditional vapor-compression systems (responsible for the 7.8% of greenhouse gas emissions) [1] [2], ... 詳細を見る
脉冲电磁场（PEMF）作为一种非侵入式物理干预手段，可通过特定频率的时变磁场改善血液循环，调节身体机能，进而改善睡眠。影响电磁场空间分布的因素众多，包括波形参数（脉冲波形、脉冲幅值、脉冲频率、脉冲组合等）和线圈参数（导线直径、线圈匝数、线圈尺寸、布局等）。本文在COMSOL Multipyhsics软件平台上聚焦于线圈参数的优化设计及其对空间磁感应强度分布的影响。首先，构建单、双线圈模型，系统分析线圈绕制参数及尺寸对空间磁场分布的影响规律；其次，建立多线圈模型，研究不同布局策略对磁场均匀性的提升效果；最后，构建符合人体结构特征的三维多线圈模型 ... 詳細を見る