Accession Number:

AD0723663

Title:

Turbulent Heating of Plasmas by Streaming Instabilities.

Descriptive Note:

Interim scientific progress rept.,

Corporate Author:

AUSTIN RESEARCH ASSOCIATES INC TEX

Report Date:

1971-05-01

Pagination or Media Count:

65.0

Abstract:

During the past year, progress has been made toward the research goal of understanding the development and nature of turbulence generated from a source of free streaming energy within a collisionless plasma. The initial evolution of microturbulence, during which the electron drift energy is very efficiently converted to electron thermal energy and ion sloshing energy, is now largely understood. The authors have begun the development of a model of the late-time turbulence evolving in a driven toroidal confinement device. This turbulence involves a large amplitude ion wave and hot, trapped, current-carrying electrons. Calculations indicate that turbulent heating proceeds as long as the external field is applied, and the coherent ion sloshing energy increases to a significant fraction of the electron thermal energy. Author

Subject Categories:

  • Fusion Devices (Thermonuclear)
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE