Dust Streaming in Toroidal Traps

Reichstein, Torben; Wilms, Jochen; Piel, A.

doi:10.1109/tps.2012.2222052

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…A sudden bifurcation event is found at the 4 h position in panel (c), which is accompanied by a dramatic temperature rise in panel (d). Such shock-like events are found in a wide parameter regime [111]. Shocks are a typical feature of compressible media.…”

Section: Simulation Of Dust Flowsmentioning

confidence: 94%

Plasma crystals: experiments and simulation

Piel

2016

Plasma Phys. Control. Fusion

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Dusty plasmas are a well accessible system to study crystallization of charged-particle systems at room temperature. The large mass compared to atomic particles dramatically slows down the particle velocities. The high transparency of the system allows to trace simultaneously the motion of all particles with quasi-atomic resolution. After a brief overview, the progress in this field is exemplified by studies of spherical three-dimensional plasma crystals, the so-called Yukawa balls. The static structure and eigenmodes are explained in simple terms. It is shown that shielding modifies the expansion of a Yukawa ball from a self-similar explosion to a continuous ablation process that starts at the surface. The experimental progress with three-dimensional diagnostics and laser heating and sophisticated methods for visualising the order inside the shell structure are described. Together with quantifying the diffusion coefficient these investigations reveal the details of the solid-liquid phase transition. Besides thermodynamic aspects, the liquid phase of dusty plasmas also gives access to hydrodynamic phenomena at the individual particle scale.

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Section: Simulation Of Dust Flowsmentioning

confidence: 94%

Plasma crystals: experiments and simulation

Piel

2016

Plasma Phys. Control. Fusion

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“…Also, usually their lattices have hexagonal symmetry. [14][15][16][17][18] In most papers, spring force is used as confinement force: [19][20][21][22][23] F x = −k x x, F y = −k y y.…”

Section: Introductionmentioning

confidence: 99%

Electric field in two-dimensional complex plasma crystal: Simulated lattices

Bahadory¹

2018

Chinese Phys. B

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We focus on molecular dynamics simulated two-dimensional complex plasma crystals. We use rigid walls as a confinement force and produce square and rectangular crystals. We report various types of two-row crystals. The narrow and long crystals are likely to be used as wigglers; therefore, we simulate such crystals. Also, we analyze the electric fields of simulated crystals. A bit change in lattice parameters can change the internal structures of crystals and their electric fields notably. These parameters are the number of grains, grains charge, length, and width of the crystal. With the help of electric fields, we show the details of crystal structures.

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“…4, there is a radial distribution in the angular velocity of dusts around the dust void at 𝜌 > 4, which means a sheared rotation, as described in the experiments mentioned above. [5,13,20] This is due to the fact that the dusts near the void suffer from sheared azimuthal ion drag, which is caused by the azimuthal ion flow induced by the magnetic field. We also find that the rotation slows down when 𝜈 in increases, which is also consistent with the experimental observation that the angular velocity of the rotating dust particles decreases with increasing the gas pressure.…”

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confidence: 99%

Modulation of Void Motion Behavior in a Magnetized Dusty Plasma

Xie

Sui

Wang

et al. 2016

Chinese Phys. Lett.

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Based on fluid equations, we show a time-dependent self-consistent nonlinear model for void formation in magnetized dusty plasmas. The cylindrical configuration is applied to better illustrate the effects of the static magnetic field, considering the azimuthal motion of the dusts. The nonlinear evolution of the dust void and the rotation of the dust particles are then investigated numerically. The results show that, similar to the unmagnetized one-dimensional model, the radial ion drag plays a crucial role in the evolution of the void. Moreover, the dust rotation is driven by the azimuthal ion drag force exerting on the dust. As the azimuthal component of ion velocity increases linearly with the strength of the magnetic field, the azimuthal component of dust velocity increases synchronously. Moreover, the angular velocity gradients of the dust rotation show a sheared dust flow around the void.

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Dust Streaming in Toroidal Traps

Cited by 8 publications

References 16 publications

Plasma crystals: experiments and simulation

Plasma crystals: experiments and simulation

Electric field in two-dimensional complex plasma crystal: Simulated lattices

Modulation of Void Motion Behavior in a Magnetized Dusty Plasma

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