Preservation of a dust crystal as it falls in an afterglow plasma

N Chaubey, J Goree - Frontiers in physics, 2022 - frontiersin.org
In an experiment, the power that sustains a plasma was extinguished, so that microspheres,
which had been levitated, fell downward toward a lower electrode. At the beginning of their …

[HTML][HTML] Coulomb expansion of a thin dust cloud observed experimentally under afterglow plasma conditions

N Chaubey, J Goree - Physics of plasmas, 2022 - pubs.aip.org
The Coulomb expansion of a thin cloud of charged dust particles was observed
experimentally, in a plasma afterglow. This expansion occurs due to mutual repulsion …

Controlling the charge of dust particles in a plasma afterglow by timed switching of an electrode voltage

N Chaubey, J Goree - Journal of Physics D: Applied Physics, 2023 - iopscience.iop.org
A method is demonstrated for controlling the charge of a dust particle in a plasma afterglow,
allowing a wider range of outcomes than an earlier method. As in the earlier method, the …

Mitigating dust particle contamination in an afterglow plasma by controlled lifting with a DC electric field

N Chaubey, J Goree - Journal of Physics D: Applied Physics, 2023 - iopscience.iop.org
Particle contamination due to plasma processing motivates the design of a method of
electrically lifting particles in a time interval after a plasma's power is turned off. Small solid …

Magnetized dusty plasma: On issues of its complexity and magnetization of charged dust particles

M Choudhary - Contributions to Plasma Physics, 2024 - Wiley Online Library
It is possible to excite various linear and nonlinear low‐frequency modes in dusty plasma,
which is an admixture of electrons, ions, gas atoms, and negatively charged solid particles …

Ring structural transitions in strongly coupled dusty plasmas

V Dharodi, E Kostadinova - Physical Review E, 2023 - APS
This paper presents a numerical study of ring structural transitions in strongly coupled dusty
plasma confined in a ring-shaped (quartic) potential well with a central barrier, whose axis of …

Kelvin–Helmholtz instability in strongly coupled dusty plasma with rotational shear flows and tracer transport

VS Dharodi, B Patel, A Das - Journal of Plasma Physics, 2022 - cambridge.org
Kelvin–Helmholtz (KH) instability plays a significant role in transport and mixing in various
media such as hydrodynamic fluids, plasmas, geophysical flows and astrophysical …

Rotating vortices in two-dimensional inhomogeneous strongly coupled dusty plasmas: Shear and spiral density waves

VS Dharodi - Physical Review E, 2020 - APS
Dusty plasma experiments can be performed quite easily in a strong coupling regime. In our
previous work [VS Dharodi, SK Tiwari, and A. Das, Physics of Plasmas 21, 073705 (2014)] …

Molecular and hydrodynamic descriptions of shear flows in two-dimensional strongly coupled dusty plasmas

A Gupta - Reviews of Modern Plasma Physics, 2022 - Springer
Shear flows in dusty plasmas medium are strongly affected by the spatial correlation
between highly charged grains via Yukawa interaction, which is quantified by coupling …

[HTML][HTML] Vortex merging in strongly coupled dusty plasmas using a visco-elastic fluid model

V Dharodi, E Kostadinova - Physics of Plasmas, 2024 - pubs.aip.org
This work is a numerical study of the two-dimensional merging phenomena between two
Lamb–Oseen co-rotating vortices in a viscoelastic fluid. We use a generalized …