Theory of drift-thermal instability-induced turbulence

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860449· OSTI ID:5550588

Ware, A S; Diamond, P H ^[1]; Carreras, B A; Leboeuf, J; Lee, D K ^[2]

---

1. Department of Physics, University of California, San Diego, La Jolla, California 92093 (United States)
2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

A simple model for drift-thermal instability-induced turbulence is derived and studied both analytically and numerically. Both nonlocal, nonlinear analytical calculations and three-dimensional computations are used. Potential and temperature fluctuation levels and radial correlation lengths are calculated and compared to numerical results. The saturation mechanism and the role of a fluctuation-generated shear flow are elucidated. The numerical calculations are used to obtain spectra and correlation lengths. A detailed comparison of analytical and numerical results is given.

• DOE Contract Number: FG05-80ET53088
• OSTI ID: 5550588
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 4:1; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
CLOSED PLASMA DEVICES
COLLISIONAL PLASMA
DIFFUSION
DRIFT INSTABILITY
FLUCTUATIONS
INSTABILITY
NUMERICAL SOLUTION
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
SATURATION
THERMONUCLEAR DEVICES
THREE-DIMENSIONAL CALCULATIONS
TOKAMAK DEVICES
TURBULENCE
VARIATIONS