Vortex Street in Homogeneous Dense Dusty Magnetoplasma

Yang, Jun; Wu, Bo; Jie-Jian, Mao; Liu, Ping; Wang, Jianyong

doi:10.1088/0253-6102/62/6/15

Cited by 3 publications

(5 citation statements)

References 17 publications

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“…Compared with the uniform dusty system, [23] the similarity is that the solutions are all constituted by the exponential function and trigonometric function, which form the monopolar vortex chains. The difference is the analytic expressions because the constructing ways of solutions are different.…”

Section: Summary and Discussionmentioning

confidence: 99%

“…It is shown that the potential Φ 1 is a periodic change along the z direction, but in the Y direction it decays exponentially to zero, and finally presents a stable monopoalr vortex structure. [23] So a stable periodic vortex chain along the direction of the magnetic field is formed in this inhomogeneous dusty magneto-plasma.…”

Section: Vortex Chain With Periodic Distribution Along Z Z Z Directionmentioning

confidence: 93%

“…Besides, a similar uniform dense model was studied for the vortex street by the reductive perturbation method. [23] In this paper, for the nonuniform dense dusty magnetoplasma we study the drift coherent dust vortices taking into account a strong collision effect between dust particles and neutrals. When ν dn d t in the operation, and the terms ∂ 2 z φ and ∂ t φ 2 are kept, equation ( 8) is simplified as a two-dimensional nonlinear dynamic equation…”

Section: Derivation Of Nonlinear Dynamical Equationsmentioning

confidence: 99%

“…[19] Now the QHD model is a very effective method to study theoretically a quantum plasma system, and has achieved a number of valuable results. [19][20][21][22][23][24][25][26][27] Especially in nonuniform magneto-plasmas, a number of dynamical equations and solutions for nonlinear waves are gained successfully with the QHD Model. For example, in a nonuniform dissipative quantum plasma with sheared ion flow, it is found that electrostatic monopolar, dipolar, and vortex street-type solutions can appear, and that the inclusion of the quantum statistical and Bohm potential terms significantly modifies the scale lengths of these structures.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Drift vortices in inhomogeneous collisional dusty magnetoplasma

Yang¹,

Lv²,

Xu³

et al. 2017

Chinese Phys. B

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For the sake of investigating the drift coherent vortex structure in an inhomogeneous dense dusty magnetoplasma, using the quantum hydrodynamic model a nonlinear controlling equation is deduced when the collision effect is considered. New vortex solutions of the electrostatic potential are obtained by a special transformation method, and three evolutive cases of monopolar vortex chains with spatial and temporal distribution are analyzed by representative parameters. It is found that the collision frequency, particle density, drift velocity, dust charge number, electron Fermi wavelength, quantum correction, and quantum parameter are all influencing factors of the vortex evolution. Compared to the uniform dusty system, the vortex solutions of the inhomogeneous system present richer spatial evolution and physical meaning. These results may explain corresponding vortex phenomena and support beneficial references for the dense dusty plasma atmosphere.

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Section: Summary and Discussionmentioning

confidence: 99%

Section: Vortex Chain With Periodic Distribution Along Z Z Z Directionmentioning

confidence: 93%

Section: Derivation Of Nonlinear Dynamical Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Drift vortices in inhomogeneous collisional dusty magnetoplasma

Yang¹,

Lv²,

Xu³

et al. 2017

Chinese Phys. B

Self Cite

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show abstract

“…[2] Since Haas extended the magnetohydrodynamic model [9] to the quantum hydrodynamic (QHD) model [10] in the case of nonzero magnetic field for dense plasmas with a quantum correction term generally known as the Bohm potential, the QHD model has become one of the most frequently employed models for studying dense quantum plasmas, and many research results have been gained with it. [11][12][13][14][15][16][17] For example, in the investigation of DA waves, the variations of the drift shock profile with the quantum Bohm potential, collision frequency, ratio of drift to shock velocity in the co-moving frame and effect of magnetic field have been investigated. [18] The quantum DA double layers show that the formation of the compressive and the rarefactive double layers relies on the quantum plasma parameters.…”

Section: Introductionmentioning

confidence: 99%

Dust acoustic waves in collisional uniform dense magnetoplasma

Yang

Jie-Jian

et al. 2017

Chinese Phys. B

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In order to study the characteristics of dust acoustic waves in a uniform dense dusty magnetoplasma system, a nonlinear dynamical equation is deduced using the quantum hydrodynamic model to account for dust-neutral collisions. The linear dispersion relation indicates that the scale lengths of the system are revised by the quantum parameter, and that the wave motion decays gradually leading the system to a stable state eventually. The variations of the dispersion frequency with the dust concentration, collision frequency, and magnetic field strength are discussed. For the coherent nonlinear dust acoustic waves, new analytic solutions are obtained, and it is found that big shock waves and wide explosive waves may be easily produced in the background of high dusty density, strong magnetic field, and weak collision. The relevance of the obtained results is referred to dense dusty astrophysical circumstances.

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Drift wave in strong collisional dusty magnetoplasma

Yang¹,

Jie-Jian²,

Wu³

et al. 2020

Acta Phys. Sin.

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The study about the wave mechanism of magnetized dusty plasmas has important value to related experiment, industrial processing and exploring celestial space. The linear and nonlinear fluctuation characteristics of the nonuniform magnetized dust plasma system are researched in this paper. For the homogeneous external magnetic field and the nonuniform environment with density and temperature gradients, a two-dimensional nonlinear dynamic magnetoplasma equation is derived considering the strong impact between dust and neutral particles. The linear dispersion relation is obtained by the linearized method. There are both the damping wave causing by strong collision and the harmonic wave by particle drift. Employing the typical numerical parameters for analysis, the results display that the quantum parameter modifies the system lengths; the real wave frequency is proportion to the drift frequency; the imaginary wave frequency has complex relationship with the collision frequency between dust and neutrals, and the collision of particles causes the dissipation effects to the system. Besides, the analytical solutions of drift shock wave and explosive wave are solved by function change method. The variation about the electrostatic potential with the main physical parameters is discussed in detail. It is shown that the strength of the electrostatic shock wave and the width of the explosive wave increase with increasing the dust density and magnetic field intensity, decrease with increasing the collision frequency, change with the drift velocity. When the space-time phase is small, the electrostatic potential changes quickly; once big enough, the potential tends to be stable value and reaches stable state eventually. Finally, the stability of the system is discussed. It is found that the dusty charge, quantum parameter, drift velocity all appear in the disturbed solution. All these results in the paper show that the strong collision effect, quantum effect, particle drift and magnetic field all play important role to the generation, evolution and stability of drift waves.

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Vortex Street in Homogeneous Dense Dusty Magnetoplasma

Cited by 3 publications

References 17 publications

Drift vortices in inhomogeneous collisional dusty magnetoplasma

Drift vortices in inhomogeneous collisional dusty magnetoplasma

Dust acoustic waves in collisional uniform dense magnetoplasma

Drift wave in strong collisional dusty magnetoplasma

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