Map model for nonlinear alpha particle interaction with toroidal Alfvén waves
| Autor: | Huanchun Ye, Boris Breizman, Herbert L Berk |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Tokamak Computer simulation Computational Mechanics General Physics and Astronomy Condensed Matter Physics Charged particle law.invention Alfvén wave Nonlinear system Classical mechanics Amplitude Physics::Plasma Physics Mechanics of Materials law Normal mode Quantum electrodynamics Orbit (dynamics) |
| Zdroj: | Physics of Fluids B: Plasma Physics. 5:1506-1515 |
| ISSN: | 0899-8221 |
| DOI: | 10.1063/1.860890 |
| Popis: | A map model has been developed for studying the nonlinear interaction of alpha particles with the toroidal Alfven eigenmodes. The map is constructed by assuming a linear interaction during a single poloidal transit, which allows the study of the nonlinear interaction over many transits. By using this map, analytic expressions are obtained for the particle nonlinear bounce frequency, and the wave amplitude threshold for the onset of particle orbit stochasticity. The map model can also facilitate self‐consistent simulations which incorporate the time variation of the waves. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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