Effect of polarization force on the Mach cones in a complex plasma

Journal Article · Sat Dec 15 00:00:00 EST 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4773194· OSTI ID:22072685

Bandyopadhyay, P ^[1]; Jiang, K ^[1]; Dey, R ^[2]; Morfill, G E ^[1]

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1. Max-Planck Institut fuer Extraterrestrische Physik, D-85741, Garching (Germany)
2. Max-Planck Institut fuer Plasma Physik, Boltzmannstr. 2, 85748, Garching (Germany)

We report the modifications of compressional Mach cone propagation characteristics due to the polarization force acting on micron size dust particles embedded in a non-uniform plasma. We solve the hydrodynamic fluid equations for highly charged dust particles to investigate the Mach cone by incorporating the polarization force in the momentum equation and observe the structural change on lateral wakes at different polarization force for a given Mach number and Epstein drag force. We also notice that the maximum amplitude of normalized dust density perturbation decreases with the increase of polarization interaction when the other parameters remain constant.

• OSTI ID: 22072685
• Journal Information: Physics of Plasmas, Vol. 19, Issue 12; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CONES
DENSITY
DISTURBANCES
DRAG
DUSTS
EQUATIONS
HYDRODYNAMIC MODEL
MACH NUMBER
PLASMA
POLARIZATION