Statistical analysis of nonlinear wave interaction in simulated Langmuir turbulence data.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F03%3A04033532" target="_blank" >RIV/68378289:_____/03:04033532 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Statistical analysis of nonlinear wave interaction in simulated Langmuir turbulence data.

Popis výsledku v původním jazyce

We present a statistical analysis of strong turbulence of Langmuir and ion-sound waves resulting from beam-plasma interaction. The analysis is carried out on datasets produced by a numerical simulation of one-dimensional Zakharov's equations. The nonlinear wave interactions are studied using two different approaches: high-order spectra and Volterra models. These methods were applied to identify two and three wave processes in the data and the Volterra model was furthermore employed to evaluate the direction and magnitude of energy transfer between the wave modes in case of Langmuir wave decay. We demonstrate that these methods allow one to determine the relative importance of strongly and weakly turbulent processes. The statistical validity of the results was thoroughly tested using surrogated dataset analysis.

Název v anglickém jazyce

Statistical analysis of nonlinear wave interaction in simulated Langmuir turbulence data.

Popis výsledku anglicky

We present a statistical analysis of strong turbulence of Langmuir and ion-sound waves resulting from beam-plasma interaction. The analysis is carried out on datasets produced by a numerical simulation of one-dimensional Zakharov's equations. The nonlinear wave interactions are studied using two different approaches: high-order spectra and Volterra models. These methods were applied to identify two and three wave processes in the data and the Volterra model was furthermore employed to evaluate the direction and magnitude of energy transfer between the wave modes in case of Langmuir wave decay. We demonstrate that these methods allow one to determine the relative importance of strongly and weakly turbulent processes. The statistical validity of the results was thoroughly tested using surrogated dataset analysis.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F01%2F1064" target="_blank" >GA205/01/1064: Analýza vln a turbulence v kosmickém plazmatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Annales Geophysicae

ISSN

0992-7689

e-ISSN

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Svazek periodika

21

Číslo periodika v rámci svazku

N/A

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

681-692

Kód UT WoS článku

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EID výsledku v databázi Scopus

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