Anomalous Ion Diffusion and Radial Electric Field Generation in Edge Tokamak Plasma Turbulence of the Hasegawa-Watakani Model

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F02%3A04077748" target="_blank" >RIV/68407700:21340/02:04077748 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Anomalous Ion Diffusion and Radial Electric Field Generation in Edge Tokamak Plasma Turbulence of the Hasegawa-Watakani Model
Original language description
Estimation of a diffusion for a spatio-temporal form of the potential, obtained as a solution of the Hasegawa-Wakatani (H-W) equations, is discussed. We have found the difference between the drift approximation and the full description of the dynamics (including the effect of the finite Larmor radius). As an interesting consequence of the dynamics discussed, we were looking for the possibility of radial electric field generation in the turbulence regime described by H-W equations, which was shown recently to result from the simple model. We have shown that the generation of a radial electric field and a poloidal ExB fluid velocity persists in a more realistic form of the fluctuating potential described by the H-W equations. Moreover, we have shown thatthe drift approximation can give considerably different results than the more exact PIC approach, which includes finite-Larmor radius effects as well.
Czech name
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Czech description
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Project
<a href="/en/project/IAA1043201" target="_blank" >IAA1043201: Anomalous diffusion of plasma particles in electrostatic turbulence and systems of magnetic islands.</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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