Strange Attractors in Drift Wave Turbulence

Technical Report · Wed Sep 03 00:00:00 EDT 2003

DOI:https://doi.org/10.2172/814755· OSTI ID:814755

Lewandowski, Jerome L.V.

There are growing experimental, numerical and theoretical evidences that the anomalous transport observed in tokamaks and stellarators is caused by slow, drift-type modes (such as trapped electron modes and ion-temperature gradient-driven modes). Although typical collision frequencies in hot, magnetized fusion plasmas can be quite low in absolute values, collisional effects are nevertheless important since they act as dissipative sinks. As it is well known, dissipative systems with many (strictly speaking more than two) degrees of freedom are often chaotic and may evolve towards a so-called attractor.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE Office of Science (SC) (US)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 814755
• Report Number(s): PPPL-3863; TRN: US0304295
• Resource Relation: Other Information: PBD: 3 Sep 2003
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATTRACTORS
DEGREES OF FREEDOM
ION TEMPERATURE
STELLARATORS
TRANSPORT
TRAPPED ELECTRONS
TURBULENCE
TOKAMAK DEVICES
CHAOS
NUMERICAL SIMULATION