Published July 1989 | Version v1
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Nonlinear wave coupling and clumps in drift wave turbulence theory

Creators

Description

Anomalous transport mediated by drift wave turbulence has been studied by many authors using weak and renormalized turbulence theory. Additional nonlinear effects coming from three-wave coupling have been studied in simple models by Waltz and for drift waves by Waltz and Dominguez. At the same time, the ''clump'' theory of Dupree has been extended and applied to drift wave turbulence. In the present work, we discuss how the discreteness effects associated with clumps may be combined with the nonlinear wave coupling formalism. It is shown that both the nonlinear wave coupling and clump correlation act as sources for the spectral density in k, and w, with a comparison between the two effects being presented. 5 refs

Availability note (English)

MF available from INIS under the Report Number; NTIS, PC A02/MF A01 as DE90004103; OSTI; INIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
GA-A--19794

Conference

Title
Workshop on coherent structure in plasma.
Dates
Mar 1989.
Place
Nagoya (Japan).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21021482
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CORRELATION FUNCTIONS; HOMOGENEOUS PLASMA; NONLINEAR PROBLEMS; SPECTRAL DENSITY; TRANSPORT THEORY; TURBULENCE
Descriptors DEC
FUNCTIONS; PLASMA; SPECTRAL FUNCTIONS

Optional Information

Contract/Grant/Project number
Contract AC03-89ER53277
Secondary number(s)
CONF-8903180--1.