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Title: Application of RF Power to Plasma Flow Drive in Fusion Confinement

Abstract

Wave induced flows can produce radially sheared velocity profiles that can in turn stabilize drift wave turbulence and improve plasma confinement. A second-order kinetic theory is developed in one-dimensional slab geometry to treat radio frequency (RF)-driven plasma flows. The Vlasov equation is solved to second order in the RF electric field. Moments of the second-order distribution function give time-averaged expressions for the heating rate, the wave kinetic flux, and the RF force exerted on the plasma. On the collisional or transport time scale, the RF force in the poloidal direction is balanced by neoclassical viscosity, and the force in the radial direction is balanced direction by ambipolar electric fields. Comparison is made with previous theories which have relied on incompressible fluid approximations. Very substantial differences are seen in situations involving the Ion Bernstein Wave, a compressional wave.

Authors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
8190
Report Number(s):
ORNL/CP-103661
AT 50 20 10 0; ON: DE00008190
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Conference
Resource Relation:
Conference: International Conference on Electromagnetics in Advanced Applications, Torino, Italy, September 13-17, 1999
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; RF Systems; Plasma Acceleration; Plasma Confinement; Mathematical Models; Kinetics

Citation Formats

Batchelor, D.B., Berry, L.A., Carter, M.D., and Jaeger, E.F. Application of RF Power to Plasma Flow Drive in Fusion Confinement. United States: N. p., 1999. Web.
Batchelor, D.B., Berry, L.A., Carter, M.D., & Jaeger, E.F. Application of RF Power to Plasma Flow Drive in Fusion Confinement. United States.
Batchelor, D.B., Berry, L.A., Carter, M.D., and Jaeger, E.F. Mon . "Application of RF Power to Plasma Flow Drive in Fusion Confinement". United States. https://www.osti.gov/servlets/purl/8190.
@article{osti_8190,
title = {Application of RF Power to Plasma Flow Drive in Fusion Confinement},
author = {Batchelor, D.B. and Berry, L.A. and Carter, M.D. and Jaeger, E.F.},
abstractNote = {Wave induced flows can produce radially sheared velocity profiles that can in turn stabilize drift wave turbulence and improve plasma confinement. A second-order kinetic theory is developed in one-dimensional slab geometry to treat radio frequency (RF)-driven plasma flows. The Vlasov equation is solved to second order in the RF electric field. Moments of the second-order distribution function give time-averaged expressions for the heating rate, the wave kinetic flux, and the RF force exerted on the plasma. On the collisional or transport time scale, the RF force in the poloidal direction is balanced by neoclassical viscosity, and the force in the radial direction is balanced direction by ambipolar electric fields. Comparison is made with previous theories which have relied on incompressible fluid approximations. Very substantial differences are seen in situations involving the Ion Bernstein Wave, a compressional wave.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
Other availability
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