# Point vortices in two dimensional-plasma hydrodynamics

## Related Articles

- Single-Mode Nonlinear Regime of Weibel Instability in a Plasma with Anisotropic Temperature. Bychenkov, V.Yu.; Rozmus, W.; Capjack, C.E. // JETP Letters;8/10/2003, Vol. 78 Issue 3, p119
An analytical solution is found to the vortex electron anisotropic hydrodynamic equations that describe the nonlinear evolution of the long-wavelength Weibel instability. The presented analytical approach shows that the long-wavelength Weibel instability saturates without a decrease in the...

- Exact solution of the problem of quasineutral expansion into vacuum of a localized collisionless plasma with cold ions. Dorozhkina, D. S.; Semenov, V. E. // JETP Letters;4/25/98, Vol. 67 Issue 8, p573
An analytical solution of the Vlasov equation for the electrons and the hydrodynamic equations for the ions in a self-consistent electric field is constructed in the quasineutral approximation. This solution is valid for a finite electron-to-ion mass ratio. It permits describing the expansion...

- Formation of quasistationary vortex and transient hole patterns through vortex merger. Ganesh, R.; Lee, J. K. // Physics of Plasmas;Nov2002, Vol. 9 Issue 11, p4551
Collection of point-like intense vortices arranged symmetrically outside of a uniform circular vortex patch, both enclosed in a free-slip circular boundary, are numerically time evolved for up to 10â€“15 patch turnover times. These patterns are found to merge with the patch by successively...

- Experimental observation of a tripolar vortex in a plasma. Okamoto, A.; Hara, K.; Nagaoka, K.; Yoshimura, S.; Vranjesˇ, J.; Kono, M.; Tanaka, M. Y. // Physics of Plasmas;Jun2003, Vol. 10 Issue 6, p2211
A tripolar vortex, three aligned vortices with alternate signs of polarity of rotation, has been observed in a plasma for the first time. The tripolar vortex always appears with a deep density depression in the neutral particles, and the rotation direction of each vortex is opposite to that of...

- Merger and binary structure formation of two discrete vortices in a background vorticity distribution of a pure electron plasma. Soga, Y.; Kiwamoto, Y.; Sanpei, A.; Aoki, J. // Physics of Plasmas;Oct2003, Vol. 10 Issue 10, p3922
Observations have shown that two discrete vortices (clumps) immersed in a broad profile of background vorticity merge quickly or form a binary state that lasts for a long period. The different paths of the vortical evolution critically depend on slight differences in the initial background...

- Current gradient driven flute vortices in magnetized plasmas. Shukla, P. K. // Physics of Fluids (00319171);Jul87, Vol. 30 Issue 7, p1901
It is shown that an external electron current gradient in a nonuniform magnetized plasma can drive a purely growing instability involving coupled convective cells and magnetostatic modes. Accounting for the mode coupling, it is demonstrated that the quasistationary state of the unstable flute...

- Vortex dynamics and zonal flows. Marcus, P. S.; Kundu, T.; Lee, Changhoon // Physics of Plasmas;May2000, Vol. 7 Issue 5, p1630
Two-dimensional vortex dynamics have been studied in plasmas by exploiting the analogy between fluid velocity and the ExB drift velocity. The analogy extends to geophysical flows by including physics that mimic zonal flows, dissipation and the Î²-effect due to the variation in the Coriolis...

- Two-dimensional dynamics of two-component plasma with finite Î². Tsidulko, Yu. A. // Physics of Plasmas;Sep2004, Vol. 11 Issue 9, p4420
The collisionless two-dimensional dynamics of a two-component plasma, where the fast ions determine the plasma pressure and the cold ions determine the plasma inertia, is studied both analytically and numerically. The fast ion Larmor radius is assumed to be of the order of the plasma transverse...

- Plasma-maser effect in inhomogeneous plasma in the presence of drift wave turbulence. Singh, M.; Deka, P. N. // Physics of Plasmas;Oct2005, Vol. 12 Issue 10, p102304
A theoretical study is made on the generation mechanism of Bernstein-mode wave through plasma-maser effect in the presence of drift wave turbulence field. The drift wave turbulence field is taken as low-frequency resonant-mode field and plasma is considered to be spatially inhomogeneous to...