TITLE

Shear driven electromagnetic drift-waves in a nonuniform dense magnetoplasma

AUTHOR(S)
Tariq, Sabeen; Mirza, Arshad M.; Masood, Waqas
PUB. DATE
August 2011
SOURCE
Physics of Plasmas;Aug2011, Vol. 18 Issue 8, p082708
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Linear characteristic properties of high- and low-frequency (in comparison with the cyclotron frequency) electromagnetic drift-waves are studied in a nonuniform, dense magnetoplasma (composed of electrons and ions), in the presence of parallel (magnetic field-aligned) velocity shear, by using quantum magnetohydrodynamic model. By applying the drift-approximation (viz., |∂ t|<ωci<ωce) to the quantum momentum equations, together with the continuity equations and the Poisson equation, we derive the governing equations for electromagnetic drift-waves with the shear flow. These linear equations are then Fourier transformed to obtain the dispersion relation in both high-frequency and low-frequency regimes. The dispersion relations are then discussed under various limiting cases.
ACCESSION #
65108124

 

Related Articles

  • Electrostatic drift-wave instability in a nonuniform quantum magnetoplasma with parallel velocity shear flows. Tariq, Sabeen; Mirza, Arshad. M.; Masood, W. // Physics of Plasmas;Oct2010, Vol. 17 Issue 10, p102705 

    The propagation of high and low frequency (in comparison with the cyclotron frequency) electrostatic drift-waves is investigated in a nonuniform, dense magnetoplasma (composed of electrons and ions), in the presence of parallel shear flow, by employing the quantum magnetohydrodynamic (QMHD)...

  • Nonlinear dust drift Alfvén waves in rotating planetary magnetospheres. Haque, Q.; Saleem, H. // Physics of Plasmas;Oct2006, Vol. 13 Issue 10, p102901 

    Linear and nonlinear electromagnetic waves are investigated in the dusty magnetospheres of rotating planets. In the presence of heavy dust, the plasma may support very low frequency waves that can be affected by the plasma rotation. It is also shown that Alfvén waves can couple with the...

  • Electromagnetic transport components and sheared flows in drift-Alfvén turbulence. Naulin, Volker // Physics of Plasmas;Oct2003, Vol. 10 Issue 10, p4016 

    Results from three-dimensional numerical simulations of drift-Alfvén turbulence in a toroidal geometry with sheared magnetic field are presented. The simulations show a relation between self-generated poloidal shear flows and magnetic field perturbations. For large values of the plasma β...

  • Temporal evolution of linear drift waves in a collisional plasma with homogeneous shear flow. Mikhailenko, V. S.; Mikhailenko, V. V.; Stepanov, K. N. // Physics of Plasmas;Jan2000, Vol. 7 Issue 1 

    Temporal evolution of linear drift waves in a collisional plasma with a homogeneous shear flow is treated analytically. The explicit solutions for the linearized Hasegawa-Wakatani system of equations, as well as for linearized Hasegawa-Mima equation, are obtained for this case on the basis of...

  • Generalized action invariants for drift waves-zonal flow systems. Smolyakov, A. I.; Diamond, P. H. // Physics of Plasmas;Dec99, Vol. 6 Issue 12, p4410 

    Identifies generalized action invariants for various models of drift wave turbulence in the presence of the mean shear flow. Wave kinetic equation describing the interaction of the small scale turbulence and large scale shear flow; Correspondence to a quantity which is conserved for the small...

  • Dispersion and instability of drift waves in a fine-layered semiconductor structure. Bulgakov, A. A.; Shramkova, O. V. // Semiconductors;Dec2006, Vol. 40 Issue 12, p1386 

    Drift waves in a fine-layered periodic semiconductor structure subjected to an electric field that induces the drift of charge carriers of different signs are considered. It is shown that the drift waves in this structure can propagate at an angle to the direction of the current, while their...

  • Chaos in the parallel sheared plasma flow driven electromagnetic turbulence in nonuniform... Mirza, Arshad M.; Rafiq, Tariq // Physics of Plasmas;Apr99, Vol. 6 Issue 4, p1107 

    Reports on a system of nonlinear equations for low-frequency electromagnetic waves in nonuniform collisional magnetoplasmas. Instabilities of Alfven-type waves in the absence of the density gradient; Growth rate of electromagnetic parallel velocity shear mode; Understanding the linear and...

  • Electromagnetic instability and anomalous resistivity in a magnetic neutral sheet. Ozaki, Masao; Sato, Tetsuya; Horiuchi, Ritoku // Physics of Plasmas;Jun96, Vol. 3 Issue 6, p2265 

    Investigates an electromagnetic instability in a magnetic neutral sheet by means of a two-and-one-half dimensional semi-implicit particle simulation code. Excitation of electromagnetic waves in a field null region after saturation of the lower hybrid drift waves; Characteristic properties of...

  • Orientation dynamics in multiwalled carbon nanotube dispersions under shear flow. Pujari, Saswati; Rahatekar, Sameer S.; Gilman, Jeffrey W.; Koziol, Krzysztof K.; Windle, Alan H.; Burghardt, Wesley R. // Journal of Chemical Physics;6/7/2009, Vol. 130 Issue 21, p214903 

    We report studies of the orientation state of multiwalled carbon nanotubes (MWNTs) dispersions in steady and transient shear flows. Uncured epoxy was used as a viscous Newtonian suspending medium and samples were prepared from “aligned” MWNTs using methods previously reported [S. S....

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics