Spectrum cascade by mode coupling in drift-wave turbulence

Journal Article · Mon Nov 20 04:00:00 EST 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.41.1470· OSTI ID:6497833

Hasegawa, A; Kodama, Y

The spectrum cascade by mode coupling in drift-wave turbulence occurs to larger and smaller values of vertical-barkvertical-bar rather than toward lower frequencies. This leads to the dual cascade process; energy cascades to smaller k while entropy (square of the vorticity) cascades to larger k, analogous to two-dimensional hydrodynamic turbulence. However, the speed of energy condensation to k = 0 is much slower than in the hydrodynamic case.

• Research Organization: Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6497833
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 41:21; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
ENTROPY
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
INTERACTIONS
MECHANICS
PHYSICAL PROPERTIES
PLASMA DRIFT
THERMODYNAMIC PROPERTIES
TURBULENCE