Charging-delay induced dust acoustic collisionless shock wave: Roles of negative ions

Journal Article · Wed Nov 15 00:00:00 EST 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2374861· OSTI ID:20860365

Ghosh, Samiran; Bharuthram, R; Khan, Manoranjan; Gupta, M R ^[1]

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1. University of the Witwatersrand, Private Bag 3, Wits 2050, Johannesburg (South Africa)

The effects of charging-delay and negative ions on nonlinear dust acoustic waves are investigated. It has been found that the charging-delay induced anomalous dissipation causes generation of dust acoustic collisionless shock waves in an electronegative dusty plasma. The small but finite amplitude wave is governed by a Korteweg-de Vries Burger equation in which the Burger term arises due to the charging-delay. Numerical investigations reveal that the charging-delay induced dissipation and shock strength decreases (increases) with the increase of negative ion concentration (temperature)

• OSTI ID: 20860365
• Journal Information: Physics of Plasmas, Vol. 13, Issue 11; Other Information: DOI: 10.1063/1.2374861; (c) 2006 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
AMPLITUDES
ANIONS
DUSTS
ELECTRON TEMPERATURE
ION ACOUSTIC WAVES
ION TEMPERATURE
KORTEWEG-DE VRIES EQUATION
NONLINEAR PROBLEMS
PLASMA
RADIATION TRANSPORT
SHOCK WAVES
SOUND WAVES