Forced organization of flute-type turbulence by convective cell injection

Journal Article · Mon Mar 14 00:00:00 EST 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.1026· OSTI ID:5419287

Iizuka, S; Huld, T; Pecseli, H L; Rasmussen, J J

Nonlinear interactions between flute-type turbulence and an externally excited convective cell in a strongly magnetized plasma are investigated. During the interaction the azimuthal-mode-number spectrum of the turbulence is deformed and a broad spectrum evolves, indicating an inverse cascade. As a result of a modification in phase and amplitude of the fluctuations, an organized structure is created in turbulence. The macroscopic behavior is well explained by a Van der Pol--type equation.

• Research Organization: Association EURATOM-Risoe National Laboratory, Physics Department, Risoe, DK-4000 Roskilde, Denmark
• OSTI ID: 5419287
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 60:11
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
CONVECTION
FLUTE INSTABILITY
NONLINEAR PROBLEMS
TURBULENCE
AMPLITUDES
FLUCTUATIONS
MAGNETIZATION
ENERGY TRANSFER
HEAT TRANSFER
INSTABILITY
MASS TRANSFER
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
VARIATIONS
700103* - Fusion Energy- Plasma Research- Kinetics