Nonlinear stability of drift-tearing modes

Journal Article · Mon Mar 11 04:00:00 EST 1985 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.54.1027· OSTI ID:5882928

Scott, B D; Drake, J F; Hassam, A B

The nonlinear stability of drift-tearing modes in the presence of an electron temperature inhomogeneity is investigated. It is shown that linearly growing drift-tearing modes are rendered stable at a very small island width by quasilinear thermal effects. However, both linearly and quasilinearly stabilized modes grow to large amplitude if the initial island width is larger than the linear tearing layer, demonstrating the importance of nonlinear considerations in predictions of stability.

• Research Organization: University of Maryland, College Park, Maryland 20742
• OSTI ID: 5882928
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:10; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANALYTICAL SOLUTION
DATA
ELECTRON TEMPERATURE
INFORMATION
INSTABILITY
INSTABILITY GROWTH RATES
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC ISLANDS
NONLINEAR PROBLEMS
NUMERICAL DATA
NUMERICAL SOLUTION
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
STABILIZATION
TEARING INSTABILITY
THEORETICAL DATA