“…Here we must modify the standard CD formalism to include the boundary condition at the confining wall. 15 We use CD throughout this paper to obtain static shapes numerically, to investigate stability, and to perform dynamic simulations.…”
Section: Contour Dynamics and Stability Analysismentioning
confidence: 99%
“…Contour dynamics-based 14,15 numerical studies of asymmetric plasmas reveal complicated dynamical behaviors that cannot be interpreted easily. In an attempt to clarify the picture of the transition to instability, we employ a framework developed for the study of bifurcations in Hamiltonian systems.…”
The stability of non-neutral plasma equilibria subjected to external, azimuthal-asymmetric potentials is studied. The system exhibits a wide range of complex, symmetry-dependent, bifurcation phenomena.
“…Here we must modify the standard CD formalism to include the boundary condition at the confining wall. 15 We use CD throughout this paper to obtain static shapes numerically, to investigate stability, and to perform dynamic simulations.…”
Section: Contour Dynamics and Stability Analysismentioning
confidence: 99%
“…Contour dynamics-based 14,15 numerical studies of asymmetric plasmas reveal complicated dynamical behaviors that cannot be interpreted easily. In an attempt to clarify the picture of the transition to instability, we employ a framework developed for the study of bifurcations in Hamiltonian systems.…”
The stability of non-neutral plasma equilibria subjected to external, azimuthal-asymmetric potentials is studied. The system exhibits a wide range of complex, symmetry-dependent, bifurcation phenomena.
This paper demonstrates that there is a contour dynamics formulation for the evolution of uniform vortex patches in any finitely connected planar domain bounded by impenetrable walls. A general numerical scheme is presented based on this formulation. The algorithm makes use of conformal mappings and follows the evolution of a conformal pre-image of a given vortex patch in a canonical multiply connected circular pre-image region. The evolution of vortex patches can be computed given just the conformal map from this pre-image region to the physical fluid region. The efficacy of the scheme is demonstrated by illustrative examples.
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