Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Siegbert Kuhn"'
Publikováno v:
Physics of Plasmas
An analytic solution of the time-dependent Boltzmann kinetic equation is found for the first time. The plasma-wall transition (PWT) layer is analyzed using time-dependent velocity distribution functions for electrons and ions. The process of wall cha
Publikováno v:
Applied Mathematics. :145-153
In this brief communication we present a new integral transform, so far unknown, which is applicable, for instance, to studying the kinetic theory of natural eigenmodes or transport excited in plasmas with bounded distribution functions such as in Q
Publikováno v:
Physics of plasmas, vol. 25, no. 4, pp. 1-16, 2018.
At present, identifying and characterizing the common plasma–sheath edge (PSE) in the conventional fluid approach leads to intrinsic oversimplifications, while the kinetic one results in unusable over-generalizations. In addition, none of these app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09d97514f7482ff654881978037dd195
https://repozitorij.uni-lj.si/IzpisGradiva.php?id=105120
https://repozitorij.uni-lj.si/IzpisGradiva.php?id=105120
Publikováno v:
AIP Advances, Vol 8, Iss 10, Pp 105311-105311-23 (2018)
It has been shown recently by Kos et al. [Phys. Plasmas 25, 043509 (2018)] that the common plasma-sheath boundary is characterized by three well defined characteristic points, namely the plasma edge (PE), the sheath edge (SE) and the sonic point. Mor
Publikováno v:
Journal of Plasma Physics. 79:1021-1024
A kinetic theory of the Debye sheath in the Tonks–Langmuir model of the plasma-wall transition layer with hot neutrals is presented. The plasma, consisting of Boltzmann-distributed electrons and singly charged ions, is in contact with an absorbing
Publikováno v:
Journal of Plasma Physics. 79:169-187
A general formalism for calculating the potential distribution Φ(z) in the quasineutral region of a new class of plane Tonks–Langmuir (TL)-type bounded-plasma-system (BPS) models differing from the well-known ‘classical’ TL model (Tonks, L. an
Autor:
A. Din, Siegbert Kuhn
Publikováno v:
Contributions to Plasma Physics. 50:915-921
Finding the optimum matching between the numerically realizable part of the (space-charge dominated) sheath solution (i.e., potential distribution) and the (quasineutral) presheath plasma solution is quite a challenging problem in general. Here, an a
Publikováno v:
Journal of Plasma Physics. 76:559-567
The magnetized plasma-wall transition (MPWT) layer occurring, for example near a tokamak diverter, typically consists of three distinct sublayers: the Debye sheath (DS), the magnetic presheath (MPS) and the collisional presheath (CPS), with character
Autor:
M. Kamran, Siegbert Kuhn
Publikováno v:
Journal of Plasma Physics. 76:617-625
A new method is proposed for calculating the potential distribution Φ(z) in a one-dimensional quasi-neutral bounded plasma; Φ(z) is assumed to satisfy a quasi-neutrality condition (plasma equation) of the form ni{Φ(z)} = ne(Φ), where the electron
Publikováno v:
Journal of Nuclear Materials. :335-338
in this paper, we present kinetic simulation results of plasma parallel transport in the stationary and ELMy scrape-off (SOL) layer. We demonstrate that number of kinetic factors describing SOL are strongly nonuniform and evolve during the ELM. Power