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Vlasov Simulation of Langmuir Wave Packets : Volume 14, Issue 5 (25/10/2007)

By Umeda, T.

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Book Id: WPLBN0003985780
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Vlasov Simulation of Langmuir Wave Packets : Volume 14, Issue 5 (25/10/2007)  
Author: Umeda, T.
Volume: Vol. 14, Issue 5
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2007
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Umeda, T. (2007). Vlasov Simulation of Langmuir Wave Packets : Volume 14, Issue 5 (25/10/2007). Retrieved from http://hawaiilibrary.net/


Description
Description: Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8601, Japan. Amplitude modulation and packet formation of Langmuir waves are commonly observed during a nonlinear interaction between electron beams and plasmas. In this paper, we briefly review the history of Langmuir wave packets as developed by recent spacecraft observations and computer simulations. New one-dimensional electrostatic Vlasov simulations are performed to study their formation processes. It is found that the formation of Langmuir wave packets involves both an incoherent turbulent process and a coherent nonlinear trapping process. Existence of cold ions does not affect nonlinear processes of the weak-electron-beam instability in which the ion distribution is hardly modified by the excited Langmuir wave packets.

Summary
Vlasov simulation of Langmuir wave packets

Excerpt
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