Simulating Plasma Microwave Diagnostics

被引：0
作者：
J. S. Shang
机构：
[1] Wright State University,Mechanical and Material Engineering Department
来源：
Journal of Scientific Computing | 2006年 / 28卷
关键词：
Computing simulation; microwave; plasma; attenuation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Computational simulation of plasma diagnostics via microwave absorption has been successfully accomplished. This simulation capability is developed from solutions to a combination of the three-dimensional Maxwell equations and the generalized Ohm’s law in the time domain. As the simulation procedure developed, numerical results were obtained for a range of plasma transport properties including electrical conductivity, permittivity, and plasma frequency. The present results reveal the wave reflection at the media interface and substantial distortion of the electromagnetic field within a thin plasma sheet from a guided microwave. The present numerical simulation also accurately predicts the microwave blackout phenomenon as the wave propagates through a thick plasma sheet. The diffractions and refractions occurring at antenna apertures and passing through a plasma column are captured numerically. Finally, the numerical simulation has successfully duplicated a plasma diagnostic experiment in a hypersonic magneto-hydrodynamic channel.
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页码：507 / 532
页数：25
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