Statistical properties and correlation functions for drift waves

Journal Article · Thu May 01 00:00:00 EDT 1986 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.865667· OSTI ID:6011956

Horton, W

The dissipative one-field drift wave equation is solved using the pseudospectral method to generate steady-state fluctuations. The fluctuations are analyzed in terms of space-time correlation functions and modal probability distributions. Nearly Gaussian statistics and exponential decay of the two-time correlation functions occur in the presence of electron dissipation, while in the absence of electron dissipation long-lived vortical structures occur. Formulas from renormalized, Markovianized statistical turbulence theory are given in a local approximation to interpret the dissipative turbulence.

• Research Organization: Institute for Theoretical Physics, University of California, Santa Barbara, California 93106; Department of Physics, University of Texas, Austin, Texas 78712
• DOE Contract Number: FG05-80ET53088
• OSTI ID: 6011956
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:5; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
COLLISIONAL PLASMA
CORRELATION FUNCTIONS
DIFFERENTIAL EQUATIONS
DRIFT INSTABILITY
ENERGY LOSSES
EQUATIONS
FLUCTUATIONS
FUNCTIONS
INSTABILITY
LOSSES
MATHEMATICAL SPACE
MATHEMATICS
NONLINEAR PROBLEMS
NUMERICAL ANALYSIS
PARTIAL DIFFERENTIAL EQUATIONS
PHASE SPACE
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PROBABILITY
SPACE
STEADY-STATE CONDITIONS
TURBULENCE
VARIATIONS
WAVE EQUATIONS