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Drift wave turbulence in tokamak geometry
Drift wave turbulence in model geometries

Computation of Warm Ion Drift Alfv\'en Turbulence,
adding the dynamics of the ion temperature and its gradient to the
drift Alfv\'en model described below. One of the results is the
existence of a weak anomalous particle pinch. Qualitative changes
to the turbulence are strong, and suggest a better description may
simply be electromagnetic ITG mode turbulence. Both pressure
gradients are effective drives, however, and the resulting ion and
electron heat transport are comparable.
[Contributions in Plasma Physics 38
(1998) 171176].

Three Dimensional Computation of Drift Alfv\'en Turbulence,
a study of what happens to drift wave turbulence when it becomes
electromagnetic due to the finite beta. It keeps its mode
structure but becomes much stronger, possibly able to account for
much of Lmode electron transport. The principal mechanism is the
nonlinear electron drift wave instability, made stronger with
higher beta as the parallel Alfven waves become slower relative to
the drift turbulence frequencies. Curvature and collisions are
secondary, purely quantitative, effects.
[Plasma Physics and Controlled Fusion 39
(1997) 16351668].

Resistivitygradient versus Driftwave Turbulence, being a
comparison between ``ripplingmode'' and driftwave turbulence
with a proper system of equations, and the explanation for why
the ripplingmode instability is absent in tokamak edges
[Nuclear Fusion 32 (1992) 873895].

The Mechanism of Selfsustainment in Collisional Drift Wave
Turbulence, being an exposition of the nonlinear drift wave
instability represented by ``selfsustained turbulence'', by which
the agitation due to the turbulence is its own freeenergy access
mechanism
[Physics of Fluids B 4 (1992) 24682494].
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