Progress on theoretical issues in modelling turbulent transport

We discuss theoretical progress in turbulent transport modelling in tokamaks. In particular, we address issues that the conventional quasilinear type calculation cannot confront, such as (i) the nature of turbulence in the edge-core coupling region of tokamaks (i.e. the so-called 'no man's...

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Bibliographic Details
Published in:Nuclear fusion 2013-04, Vol.53 (4), p.43008-11
Main Authors: Kosuga, Y., Diamond, P.H., Wang, L., Gürcan, Ö.D., Hahm, T.S.
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Fluid flow
Mathematical models
Modelling
Nonlinear dynamics
Physics
Plasma Physics
Transport
Turbulence
Turbulent flow
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Summary:We discuss theoretical progress in turbulent transport modelling in tokamaks. In particular, we address issues that the conventional quasilinear type calculation cannot confront, such as (i) the nature of turbulence in the edge-core coupling region of tokamaks (i.e. the so-called 'no man's land'), and the dynamics of incoming structures coupled to zonal flows, (ii) nonlinear dynamics of zonal flows and (iii) transport by drift wave turbulence with strong wave-particle interaction. A unifying theme of these studies is their formulation in terms of the phase space density correlation evolution.
ISSN:0029-5515
1741-4326
DOI:10.1088/0029-5515/53/4/043008