A Study of the Cross-Scale Dispersion Relation of the Fast-mode,Intermediate-mode and Slow-mode Waves in Space PlasmaA Study of the Cross-Scale Dispersion Relation of the Fast-mode, Intermediate-mode and Slow-mode Waves in Space Plasma

• Main Authors: Yu-Chun Huang, 黃郁淳
• Other Authors: Ling-Hsiao Lyu
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/67427666872152651903

碩士 === 國立中央大學 === 太空科學研究所 === 99 === The magnetohydromagnetic (MHD) plasma model ignores the ion inertial effect, so it cannot explain the meso-scale and micro-scale plasma phenomena observed in the space. At the long-wavelength limit, the ion-electron two-fluid plasma model is equivalent to the MHD plasma model, whereas the dispersion effects of the meso-scale and micro-scale plasma waves can also be included in the two-fluid plasma model if the effects of ion inertia, electron inertia, charge separation and displacement current are considered. Therefore, we can use the two-fluid model to study the cross-scale dispersion of the fast-mode, intermediated-mode, and slow-mode waves. The ion inertial effect, electron inertial effect, and the charge-separation and displacement current effect on the meso- and micro-scales wave dispersions will be examined based on four different simplified two-fluid models. The results of this thesis will provide a useful theoretical basis to assist the future studies on the multi-scale observations and the cross-scale simulations of the space plasma.