Characteristics and Generation Mechanism of Holes in an Extended Electron Vortex

Abstract

In nonneutral plasma, depleted regions (holes) in the vorticity often play a controlling role in the evolution of two dimensional turbulence. We report experimental investigations of the generation process of ring holes (three-dimensionally annular depletion) surrounding a strongly-peaked clump of vorticity (point vortex) immersed in the background of a spatially extended vorticity distribution, and determine the empirical scaling for the generation time of the ring holes. Moreover, we report geometrical features of the ring hole, and report that ring holes play an important role for crystallization.

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Document Details

Document Type
Technical Report
Publication Date
Jun 24, 2002
Accession Number
ADP012547

Entities

People

  • Akio Sanpei
  • Kiyokazu Ito
  • Yasuhito Kiwamoto
  • Yukihiro Soga

Organizations

  • Kyoto University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Crystallization
  • Data Analysis
  • Data Sets
  • Demographic Cohorts
  • Dynamics
  • Electric Fields
  • Electrons
  • Experimental Data
  • Flow
  • Geometry
  • Low Density
  • Physics
  • Shear Flow
  • Stagnation Point
  • Statistical Mechanics
  • Technical Information Centers
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Coastal Oceanography
  • Pulsed Power and Plasma Physics.
  • Structural Dynamics.

Technology Areas

  • Microelectronics