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COMSOL Conference 2024 論文集を見る
电感耦合等离子体是一种将外部电源提供的能量经电感线圈以电磁场的形式耦合传递给等离子体以维持等离子体放电的技术。本文在原有电感耦合等离子体源的基础结构上，通过在放电腔室外放置若干个闭合铁氧体磁芯，将电感线圈绕制在磁芯上来达到改善性能的目的。在这项工作中，我们利用COMSOL在射频电源相对较低频率(400KHz)的情况下，对低气压(10Torr)氩气介质带有磁芯的圆柱形ICP进行了多物理场耦合仿真，其中包含电磁场、等离子体、流体场和温度场，得到了包括电子密度、电子温度、流场速度与背景气体温度等物理场分布。结果表明，在放电功率为400W左右时 ... 詳細を見る
绝缘子是高压直流输电系统中的关键组件，对电力安全输送具有至关重要的作用。为保障电力系统安全稳定运行、防止绝缘子劣化和闪络，本研究针对高湿度低盐环境及高灰密低盐密低污染环境下绝缘子表面颗粒的异常放电现象，通过COMSOL Multiphysics建立绝缘子运行和颗粒放电模型，采用流体-等离子体化学反应混合模型，对附着水膜的盐颗粒及下小雨时中性颗粒引起的微观放电进行了数值模拟，分析了颗粒间的电位差与放电时的电子运行特征。研究结果表明：绝缘子表面只存在中性颗粒而无导电污染颗粒时，输电线本身产生的离子流在水滴的作用下充当了绝缘子表面的导电层 ... 詳細を見る
In this poster, finite element based electromagnetic analysis work carried out for the two Indian tokamaks SST-1 and ADITYA is summarised. As a part of Indian Fusion Pogramme, first Indian tokamak Aditya and first Indian steady superconducting tokamak SST-1 are constructed & being ... 詳細を見る
本研究基于COMSOL Multiphysics多物理场仿真平台，利用等离子体模块构建了等尺寸二维自洽流体模型，结合实验深入探究了辅助脉冲电压（APV）对大气压等离子体射流（APPJ）中电离波传播动力学特性的调控机理。仿真工作复现并深入了先前实验研究的关键发现，模型模拟了在辅助电极（AE）上施加不同幅值的APV时，电离波传播路径上的电势分布、电子/离子密度、电场强度及电子温度的时空演化过程。计算结果表明，电离波的产生影响了管外电势的产生与再分布，同时外加APV通过显著改变电离波前端的电势分布，从而有效调控其传播行为。模型与实验证明 ... 詳細を見る
Design of Microwave Resonance Cavity (MRC) to generate non-thermal plasma to treat NOx and SOx from marine diesel engine is presented in this paper. Microwave frequency of 2.45GHz is used generate the required plasma. A number of wave guides are used to transfer the microwave energy ... 詳細を見る
At the Fontys University of Applied Physics (The Netherlands) a plasma etcher has been acquired for educational purposes. The machine operates at low power up to 30 Watt and is driven with a magnetic coil at 13.56 MHz. The use of COMSOL Multiphysics software will be discussed to simulate ... 詳細を見る
Introduction: In inductively coupled plasma (ICP) systems the inductive antenna is coupled to the excited plasma inside the low pressure gas reactor. A multi-ICP system can be used for increased area processing and provide additional variables for controlling the plasma. However, ... 詳細を見る
With this presentation, some content has been discussed from several parts as follows: 1. Plasma switches are introduced by their derivation and types, and the operating mechanism of Hydrogen cross field plasma switch is indicated then. 2. The related theories of Hydrogen plasma to ... 詳細を見る
Multiphysics simulation was used in this work to model inductively coupled plasmas (ICPs). Developing a model of an ICP is challenging due to the complex relationship between the applied electric field and mixture of chemical species that develops. A preliminary model was developed and ... 詳細を見る
Fusion devices (tokamaks, stellarators) require hundreds of millions degree Celsius temperature to reach the plasma state when the fusion reactions start to occur. Ion cyclotron resonance heating (ICRH) is a method of energy transfer to the ions in the plasma from electromagnetic ... 詳細を見る