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等离子体与高频电磁波相互作用的数值研究

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为了更好地模拟再入过程飞行器在等离子体鞘套的传输模型,采用高斯模型模拟多层电子密度,借助多层介质中任意介质层内电磁波的场方程以及电磁场的边界条件,得到在非均匀等离子体条件下的反射、透射、衰减值.利用数值模拟,分析改变碰撞频率、入射角、最大电子密度条件下,高频电磁波在非磁化、非均匀等离子体鞘套中传播的反射T、透射R以及衰减Att特性.提高入射波频率至THz波频段,可以使衰减损耗减小,在一定程度上破除"黑障".
Numerical Study of Interaction Between Plasma and High-Frequency Electromagnetic Wave
In order to better simulate the transport model of the vehicle in the plasma sheath during the reentry process,the Gaussian model is used to simulate the multilayer electron density.By using the field equation of the electromagnetic wave in any dielectric layer in the multilayer medium and the boundary conditions of the electromagnetic field,the reflection,transmission and attenuation values under the condition of non-uniform plasma are obtained.The reflection T,transmission R and attenuation Att characteristics of high-frequency electromagnetic wave propagating in non-magnetized and non-uniform plasma sheath were analyzed by numerical simulation with varying collision frequency,maximum electron density and incident Angle.Increasing the incident wave frequency to THz wave band can reduce the attenuation loss and break the"black barrier"to a certain extent.

high-frequency electromagnetic waveplasmablack barrierattenuation characteristic

陈春梅、孟慧、闫晓兵、董晓晨、孙大伟

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泰山科技学院,山东 泰安 271000

高频电磁波 等离子体 黑障 衰减特性

2024

自动化应用
重庆西南信息有限公司

自动化应用

影响因子:0.156
ISSN:1674-778X
年,卷(期):2024.65(20)