TITLE

Water bag modeling of a multispecies plasma

AUTHOR(S)
Morel, P.; Gravier, E.; Besse, N.; Klein, R.; Ghizzo, A.; Bertrand, P.; Bourdelle, C.; Garbet, X.
PUB. DATE
March 2011
SOURCE
Physics of Plasmas;Mar2011, Vol. 18 Issue 3, p032512
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report in the present paper a new modeling method to study multiple species dynamics in magnetized plasmas. Such a method is based on the gyrowater bag modeling, which consists in using a multistep-like distribution function along the velocity direction parallel to the magnetic field. The choice of a water bag representation allows an elegant link between kinetic and fluid descriptions of a plasma. The gyrowater bag model has been recently adapted to the context of strongly magnetized plasmas. We present its extension to the case of multi ion species magnetized plasmas: each ion species being modeled via a multiwater bag distribution function. The water bag modelization will be discussed in details, under the simplification of a cylindrical geometry that is convenient for linear plasma devices. As an illustration, results obtained in the linear framework for ion temperature gradient instabilities are presented, that are shown to agree qualitatively with older works.
ACCESSION #
59744100

 

Related Articles

  • Evolution of an electron energy distribution function in a weak dc magnetic field in solenoidal inductive plasma. Lee, Min-Hyong; Choi, Seong Wook // Journal of Applied Physics;Dec2008, Vol. 104 Issue 11, p113303 

    We investigated the evolution of the electron energy distribution function (EEDF) in a solenoidal inductively coupled plasma surrounded by an axial dc magnetic field. The increase in the dc magnetic field caused the EEDF to evolve from a bi-Maxwellian to a Maxwellian distribution. At the...

  • Self-Organized Structures In Z-Pinch Devices. Ortiz-Tapia, Arturo // AIP Conference Proceedings;2006, Vol. 875 Issue 1, p431 

    In several z-pinch devices there has been observation of regular structures, which appear systematically when repeating the experiments. The fact that very identifiable, recurrent, geometrical structures appear in z-pinches, which are relatively long lived, has motivated the analysis of the...

  • Plasma production by toroidal bounded whistler waves. Tripathi, S. K. P.; Bora, D. // AIP Conference Proceedings;2001, Vol. 595 Issue 1, p518 

    In a toroidal plasma device bounded whistler waves are excited to produce the high density plasma. This wave is a toroidal counterpart of well known helicon waves. Our experimental results clearly indicate the difference between helicon modes in cylinder and toroidal bounded whistler modes. In...

  • Vacuum magnetic field mapping experiments for validated determination of the helical field coil location in stellarators. Peterson, J.; Hanson, J.; Hartwell, G.; Knowlton, S. // Physics of Plasmas;Mar2010, Vol. 17 Issue 3, p032505 

    Understanding the behavior of plasmas in magnetic confinement fusion devices typically requires accurate knowledge of the magnetic field structure. In stellarator-type confinement devices, the helical magnetic field is produced by currents in external coils and may be traced experimentally in...

  • Blob stability and transport in the scrape-off-layer. D'Ippolito, D.A.; Myra, J.R. // Physics of Plasmas;Oct2003, Vol. 10 Issue 10, p4029 

    High-density plasma filaments extended along the magnetic field, which look like “blobs” in the plane perpendicular to B, have been observed in the scrape-off-layer (SOL) of many plasma devices. These objects become polarized and subsequently E×B drift to the wall carrying a...

  • Poloidal motion of trapped particle orbits in real-space coordinates. Nemov, V. V.; Kasilov, S. V.; Kernbichler, W.; Leitold, G. O. // Physics of Plasmas;May2008, Vol. 15 Issue 5, p052501 

    The bounce averaged poloidal drift velocity of trapped particles in stellarators is an important quantity in the framework of optimization of stellarators because it allows us to analyze the possibility for closure of contours of the second adiabatic invariant and therefore for improvement of...

  • Theory and simulations of electrostatic field error transport. Dubin, Daniel H. E. // Physics of Plasmas;Jul2008, Vol. 15 Issue 7, p072112 

    Asymmetries in applied electromagnetic fields cause plasma loss (or compression) in stellarators, tokamaks, and non-neutral plasmas. Here, this transport is studied using idealized simulations that follow guiding centers in given fields, neglecting collective effects on the plasma evolution, but...

  • Micromachined, planar-geometry, atmospheric-pressure, battery-operated microplasma devices (MPDs) on chips for analysis of microsamples of liquids, solids, or gases by optical-emission spectrometry. Karanassios, Vassili; Johnson, Kara; Smith, Andrea T. // Analytical & Bioanalytical Chemistry;Aug2007, Vol. 388 Issue 8, p1595 

    Because of their desirable characteristics, for example small size, lightness, low power and gas consumption, and potential for portability, miniaturized plasma sources are receiving significant attention in the scientific literature. To take advantage of these characteristics we micromachined...

  • Memory effect in stationary plasma thrusters of the SPD-MAG type. Morozov, A. I.; Bugrova, A. I.; Desyatskov, A. V.; Kharchevnikov, V. K. // Technical Physics Letters;Mar2006, Vol. 32 Issue 3, p226 

    Experimental data on the working regime restoration (memory effect) after temporary switch-off in stationary plasma thrusters of the SPD-MAG type are presented. The character of changes in the parameters of thruster operation after switch-on depends on the initial regime and on the pause duration.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics