Physics of Plasmas
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Measurements of classical deceleration of beam ions in the DIII-D tokamak
Studies of the slowing down of short pulses of deuterium beam ions in the DIII-D tokamak [Nucl. Fusion 28, 1897 (1988)] are extended to the regime where ion drag dominates electron drag. The decelerat...

Influence of sheared poloidal rotation on edge turbulence

Phys. Fluids B 2, 1 (1990); doi:10.1063/1.859529

Issue Date: January 1990

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H. Biglari and P. H. Diamond
Department of Physics, University of California at San Diego, La Jolla, California 92093 and General Atomics, San Diego, California 92138

P. W. Terry
Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
The impact of radially sheared poloidal flows on ambient edge turbulence in tokamaks is investigated analytically. In the regime where poloidal shearing exceeds turbulent radial scattering, a hybrid time scale weighted toward the former is found to govern the decorrelation process. The coupling between radial and poloidal decorrelation results in a suppression of the turbulence below its ambient value. The turbulence quench mechanism is found to be insensitive to the sign of either the radial electric field or its shear. Physics of Fluids B: Plasma Physics is copyrighted by The American Institute of Physics.
History: Received 5 June 1989; accepted 20 October 1989
Permalink: http://dx.doi.org/10.1063/1.859529
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KEYWORDS and PACS

Keywords
PACS
  • 52.35.Ra
    The physics of plasmas and electric discharges Waves, oscillations, and instabilities in plasma Plasma turbulence
  • 52.25.Fi
    The physics of plasmas and electric discharges Plasma properties Transport properties
  • 52.25.Gj
    The physics of plasmas and electric discharges Plasma properties Fluctuation phenomena
  • 52.55.Fa
    The physics of plasmas and electric discharges Plasma equilibrium and confinement Tokamaks
  • YEAR: 1990

PUBLICATION DATA

ISSN:
0899-8221 (print)   1089-7674 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (10)
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