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Nonlinear Trivelpiece–Gould waves: Recurrence, harmonic cascade, and sidebands

 

作者: J. A. C. Cabral,   L. M. Lapa˜o,   J. T. Mendonc¸a,  

 

期刊: Physics of Fluids B: Plasma Physics  (AIP Available online 1993)
卷期: Volume 5, issue 3  

页码: 787-795

 

ISSN:0899-8221

 

年代: 1993

 

DOI:10.1063/1.860975

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A theoretical and experimental study of Trivelpiece–Gould waves propagating in a magnetized plasma column is presented in this paper. In the experiments, these waves are excited by a radio frequency (rf) source, which also serves to create the plasma. Observation of nonlinear effects includes space and time recurrence effects, a wave spectrum containing a large number (up to 25) harmonics, and low‐frequency sidebands. The theoretical model explains the recurrence effects as a consequence of multiple nonlinear interactions between the fundamental wave and its harmonics. A good agreement is found between theory and the experiments.

 

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