Zobrazeno 1 - 10
of 13
pro vyhledávání: '"K. S. Fine"'
Publikováno v:
Physics of Fluids. 11:905-914
Vortex-in-cell simulations that numerically integrate the 2D Euler equations are compared directly to experiments on magnetized electron columns [K. S. Fine, A. C. Cass, W. G. Flynn, and C. F. Driscoll, “Relaxation of 2D turbulence to vortex crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0aa0e483b900319fc81bb2523870b2c
https://doi.org/10.1063/1.869961
https://doi.org/10.1063/1.869961
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 263:284-292
A magnetically confined electron column evolves in (r, θ) as an essentially inviscid, incompressible 2D fluid with a single sign of vorticity. Turbulent initial states with 50–100 vortices relax due to vortex merger and filamentation, in general a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7a469590f2da4899dea411e5906d9aa
https://doi.org/10.1016/s0378-4371(98)00495-6
https://doi.org/10.1016/s0378-4371(98)00495-6
Autor:
K. S. Fine, C. F. Driscoll
Publikováno v:
Physics of Plasmas. 5:601-607
A simple model is presented of a finite length electron plasma column supporting a small amplitude diocotron wave with mode number m=1. The electrons are contained inside conducting cylinders in an axial magnetic field, with negative voltages on end
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e9ac8e84989f4094ec0ea2b85dff98f
https://doi.org/10.1063/1.872752
https://doi.org/10.1063/1.872752
Publikováno v:
Physical Review Letters. 74:4424-4427
Freely decaying 2D turbulence in magnetized electron columns has been measured using a phosphor screen/CCD camera diagnostic. The relaxation towards axisymmetric equilibrium is hindered by medium-sized coherent vorticity holes which persist for hundr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::503c9b9e5993fb2da9c7566c88ea9bac
https://doi.org/10.1103/physrevlett.74.4424
https://doi.org/10.1103/physrevlett.74.4424
Publikováno v:
Physical Review Letters. 71:1371-1374
We observe the ([ital r],[theta]) drift motion of two nearly identical magnetized electron columns bounded by a cylindrical wall. In the 2D [bold E][times][bold B] drift approximation, these columns are vortices evolving according to the Euler equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d1c53ecf34568fbbebfe7e322d9980e
https://doi.org/10.1103/physrevlett.71.1371
https://doi.org/10.1103/physrevlett.71.1371
Autor:
K. S. Fine
Publikováno v:
Physics of Fluids B: Plasma Physics. 4:3981-3984
A simple perturbation theory of the frequencies and density distortions of the l=1 diocotron mode on pure electron plasma columns is presented. This mode is the dynamical state of an off‐axis electron column which is orbiting around the containment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43320cc679b22770d38af77fcace331e
https://doi.org/10.1063/1.860301
https://doi.org/10.1063/1.860301
Autor:
K. S. Fine, C. F. Driscoll
Publikováno v:
Physics of Fluids B: Plasma Physics. 2:1359-1366
Magnetically confined columns of electrons are excellent experimental manifestations of two‐dimensional (2‐D) vortices in an inviscid fluid. Surface charge perturbations on the electron column (diocotron modes) are equivalent to surface ripples o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f651b0dd8849d765523e3ea3886786a5
https://doi.org/10.1063/1.859556
https://doi.org/10.1063/1.859556
Publikováno v:
AIP Conference Proceedings.
Magnetically confined electron columns evolve as near‐ideal 2D fluids, allowing quantitative study of instabilities, turbulence, relaxation, and self‐organization. We find that rapid global symmetrization of a distorted column can occur by a deca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::543d6801d17bb61c34f8bc0bedb7e58f
https://doi.org/10.1063/1.47903
https://doi.org/10.1063/1.47903
Publikováno v:
Physical review letters. 67(5)
Magnetically confined columns of electrons are excellent experimental realizations of extended two-dimensional vortices in an inviscid fluid. Here, we consider two nearly identical vortices orbiting around one another inside a cylindrical wall. The v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6745972d83e77b719d1f3f8ef7112fa
https://pubmed.ncbi.nlm.nih.gov/10044936
https://pubmed.ncbi.nlm.nih.gov/10044936
Publikováno v:
Physical Review Letters. 60:1290-1293
Transport of magnetically confined pure electron plasmas to global thermal equilibrium has recently been observed. In equilibrium, the E\ifmmode\times\else\texttimes\fi{}B and diamagnetic drifts calculated from the measured temperature and density pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c667aedb1702929176aae3b342f7e08
https://doi.org/10.1103/physrevlett.60.1290
https://doi.org/10.1103/physrevlett.60.1290