Abstract
We present analytical and simulation studies of highly resolved dust fluid flows involving nonlinearly coupled incompressible surface dust vortex modes (SDVMs) and dust zonal flows (DZFs) in nonuniform unmagnetized dusty plasmas. For this purpose, we use the hydrodynamic equations for the dust fluid and Boltzmann distributed electrons and ions and obtain a set of equations that exhibit nonlinear couplings between the SDVMs and DZFs. The nonlinear equations are then used to investigate the parametric excitation of DZFs by the Reynolds stresses of the SDVMs. Large scale SDVMs emerge through nonlinear interactions with DZFs, and they suppress the dust particle transport across the density gradient. In contrast, DZFs possess short scale vortices with a higher turbulent transport. The relevance of our investigation into the role of coherent structures in a nonuniform dusty plasma is discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. Merlino and J. Goree, Phys. Today 57, 32 (2004).
V. E. Fortov et al., Phys. Usp. 47, 447 (2004).
M. Horányi et al., Rev. Geophys. 42, RG4002 (2004).
J. H. Chu and Lin I, Phys. Rev. Lett. 72, 4009 (1994); H. Thomas et al., Phys. Rev. Lett. 73, 652 (1994).
H. Y. Chu et al., Phys. Rev. Lett. 90, 075004 (2003).
O. Arp et al., Phys. Rev. Lett. 93, 165 004 (2004).
H. M. Thomas and G. Morfill, Nature 379, 806 (1996); Lin I et al., Science 272, 1626 (1996).
G. E. Morfill et al., Phys. Rev. Lett. 92, 175 004 (2004).
V. Nosenko and J. Goree, Phys. Rev. Lett. 93, 155004 (2004).
M. Lesieur, Turbulence in Fluids (Kluwer Academic, Dordrecht, 1991).
R. Greely et al., Geophys. Res. Lett. 31, L24 702 (2004).
A. Hasegawa and P. K. Shukla, Phys. Lett. A 332, 82 (2004).
K. Ostrikov, Phys. Rev. E 71, 026405 (2005).
T. Nitter, Plasma Sources Sci. Technol. 5, 93 (1996).
P. K. Shukla and A. A. Mamun, Introduction to Dusty Plasma Physics (Inst. of Physics, Bristol, 2002).
V. I. Petviashvilli and O. A. Pokhotelov, Solitary Waves in Plasmas and in the Atmosphere (Gordon and Breach, Philadelphia, 1993).
D. A. Law et al., Phys. Rev. Lett. 80, 4189 (1998); G. E. Morfill et al., Phys. Rev. Lett. 83, 1598 (1999).
O. S. Vaulina et al., JETP 91, 1147 (2000); New J. Phys. 6, 82 (2003).
V. A. Rykov et al., New J. Phys. 5, 129 (2003).
V. E. Fortov et al., JETP 96, 704 (2003).
O. S. Vaulina et al., Plasma Phys. Rep. 30, 918 (2004).
A. Hasegawa and M. Wakatani, Phys. Rev. Lett. 50, 682 (1983).
J. G. Charney, Publ. Kosjones. Nors. Videnshap. Akad. Oslo 17, 3 (1948); A. Hasegawa and K. Mima, Phys. Rev. Lett. 39, 205 (1977); Phys. Fluids 21, 87 (1978); A. Hasegawa, Adv. Phys. 34, 1 (1985).
A. Hasegawa et al., Phys. Fluids 22, 2122 (1979); W. Horton and A. Hasegawa, Chaos 4, 227 (1994); M. V. Nezlin et al., Chaos 6, 309 (1996); W. Horton, Rev. Mod. Phys. 71, 735 (1999).
W. Horton and Y. H. Ichikawa, Chaos and Structures in Nonlinear Plasmas (World Sci., Singapore, 1996).
Author information
Authors and Affiliations
Additional information
From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 82, No. 4, 2005, pp. 207–211.
Original English Text Copyright © 2005 by Shukla, Dastgeer Shaikh.
The text was submitted by the authors in English.