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Formation of Quasi-power Law Weak Langmuir Turbulence Spectrum by Harmonic Generation : Volume 11, Issue 2 (14/04/2004)

By Yoon, P. H.

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Book Id: WPLBN0004019601
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Formation of Quasi-power Law Weak Langmuir Turbulence Spectrum by Harmonic Generation : Volume 11, Issue 2 (14/04/2004)  
Author: Yoon, P. H.
Volume: Vol. 11, Issue 2
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2004
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Yoon, P. H. (2004). Formation of Quasi-power Law Weak Langmuir Turbulence Spectrum by Harmonic Generation : Volume 11, Issue 2 (14/04/2004). Retrieved from http://hawaiilibrary.net/


Description
Description: Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, USA. Langmuir wave turbulence generated by a beam-plasma interaction has been studied since the early days of plasma physics research. Despite a long history of investigation on this subject, among the outstanding issues is the generation of harmonic Langmuir waves observed in both laboratory and computer-simulated experiments. However, the phenomenon has not been adequately explained in terms of theory, nor has it been fully characterized by means of numerical simulations. In this paper, a theory of harmonic Langmuir wave generation is put forth and tested against the Vlasov simulation results. It is found that the harmonic Langmuir mode spectra exhibit quasi power-law feature implying a multi-scale structure in both frequency and wave number space spanning several orders of magnitude.

Summary
Formation of quasi-power law weak Langmuir turbulence spectrum by harmonic generation

 

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