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Title: Dynamics of a confined dusty fluid in a sheared ion flow

Abstract

Dynamics of an isothermally driven dust fluid is analyzed which is confined in an azimuthally symmetric cylindrical setup by an effective potential and is in equilibrium with an unconfined sheared flow of a streaming plasma. Cases are analyzed where the confining potential constitutes a barrier for the driven fluid, limiting its spatial extension and boundary velocity. The boundary effects entering the formulation are characterized by applying the appropriate boundary conditions and a range of solutions exhibiting single and multiple vortex are obtained. The equilibrium solutions considered in the cylindrical setup feature a transition from single to multiple vortex state of the driven flow. Effects of (i) the variation in dust viscosity, (ii) coupling between the driving and the driven fluid, and (iii) a friction determining the equilibrium dynamics of the driven system are characterized.

Authors:
; ;  [1]
  1. Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)
Publication Date:
OSTI Identifier:
22304107
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOUNDARY CONDITIONS; DIFFUSION BARRIERS; EQUILIBRIUM; FLUIDS; IONS; MATHEMATICAL SOLUTIONS; PLASMA; SHEAR; SYMMETRY; VELOCITY

Citation Formats

Laishram, Modhuchandra, Sharma, Devendra, and Kaw, Predhiman K. Dynamics of a confined dusty fluid in a sheared ion flow. United States: N. p., 2014. Web. doi:10.1063/1.4887003.
Laishram, Modhuchandra, Sharma, Devendra, & Kaw, Predhiman K. Dynamics of a confined dusty fluid in a sheared ion flow. United States. doi:10.1063/1.4887003.
Laishram, Modhuchandra, Sharma, Devendra, and Kaw, Predhiman K. Tue . "Dynamics of a confined dusty fluid in a sheared ion flow". United States. doi:10.1063/1.4887003.
@article{osti_22304107,
title = {Dynamics of a confined dusty fluid in a sheared ion flow},
author = {Laishram, Modhuchandra and Sharma, Devendra and Kaw, Predhiman K.},
abstractNote = {Dynamics of an isothermally driven dust fluid is analyzed which is confined in an azimuthally symmetric cylindrical setup by an effective potential and is in equilibrium with an unconfined sheared flow of a streaming plasma. Cases are analyzed where the confining potential constitutes a barrier for the driven fluid, limiting its spatial extension and boundary velocity. The boundary effects entering the formulation are characterized by applying the appropriate boundary conditions and a range of solutions exhibiting single and multiple vortex are obtained. The equilibrium solutions considered in the cylindrical setup feature a transition from single to multiple vortex state of the driven flow. Effects of (i) the variation in dust viscosity, (ii) coupling between the driving and the driven fluid, and (iii) a friction determining the equilibrium dynamics of the driven system are characterized.},
doi = {10.1063/1.4887003},
journal = {Physics of Plasmas},
number = 7,
volume = 21,
place = {United States},
year = {Tue Jul 15 00:00:00 EDT 2014},
month = {Tue Jul 15 00:00:00 EDT 2014}
}