Non-Linear Motion of Ion Streams in a Background of High Temperature Electrons
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概要
- 論文の詳細を見る
Non-linear ion acoustic waves propagating in a plasma of warm electrons and one or more streams of cold ions are investigated. A hydrodynamical model which employs ion fluid streams interacting among themselves through the electron pressure gradient is used, isothermal electrons being assumed. Though the present model assumes charge neutrality, it enables us to show how large amplitude disturbances become steeper, tending to form shocks or inversely how discontinuous initial disturbances are smoothed out. For a single fluid, the behaviour is the same as those of isentropic gas with γ equal to unity. However for multicomponent cases there exist conspicuous properties such as multi-stream instabilities. This paper discusses all these effects for the case of two streams. Simple waves are obtained by means of the method of characteristics; for the wave propagating faster than all the ions the compression leads to shock fomation whilst the expansion to the instability, for the waves lower than all the ions the expansion leads to the shock fomation and at the same time to instability and for the wave propagating with intermediate speed the situation is more complicated.
- 社団法人日本物理学会の論文
- 1966-04-05
著者
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TANIUTI Tosiya
Institute of Plasma Physics, Nagoya University
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Yajima Nobuo
Research Institute For Fundamental Physics Kyoto University
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Outi Akizi
Institute Of Physical And Chemical Research
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YAJIMA Nobuo
Institute of Plasma Physics, Nagoya University
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Yajima Nobuo
Institute Of Plasma Physics Nagoya University
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Taniuti Tosiya
Institute Of Plasma Physics Nagoya University
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Yajima N.
Institute of Plasma Physics, Nagoya University
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Yajima N.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Taniuti Tosiya
Research Information Center, Institute of Plasma Physics, Nagoya University
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