Projectile channeling in chain bundle dusty plasma liquids: Wave excitation and projectile-wave interaction

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52950

Title:	Projectile channeling in chain bundle dusty plasma liquids: Wave excitation and projectile-wave interaction
Authors:	Chang,MC;Tseng,YP;Lin,I
Contributors:	物理學系
Keywords:	CHARGED-PARTICLES;COMPLEX PLASMA;INSTABILITIES;CRYSTALS
Date:	2011
Issue Date:	2012-06-11 10:51:17 (UTC+8)
Publisher:	國立中央大學
Abstract:	The microscopic channeling dynamics of projectiles in subexcitable chain bundle dusty plasma liquids consisting of long chains of negatively charged dusts suspended in low pressure glow discharges is investigated experimentally using fast video-microscopy. The long distance channeling of the projectile in the channel formed by the surrounding dust chain bundles and the excitation of a narrow wake associated with the elliptical motions of the background dusts are demonstrated. In the high projectile speed regime, the drag force due to wake wave excitation increases with the decreasing projectile speed. The excited wave then leads the slowed down projectile after the projectile speed is decreased below the resonant speed of wave excitation. The wave-projectile interaction causes the increasing projectile drag below the resonant speed and the subsequent oscillation around a descending average level, until the projectile settles down to the equilibrium point. Long distance projectile surfing through the resonant crest trapping by the externally excited large amplitude solitary wave is also demonstrated. (C) 2011 American Institute of Physics. [doi:10.1063/1.3568839]
Relation:	PHYSICS OF PLASMAS
Appears in Collections:	[Department of Physics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	431	View/Open

社群 sharing

Loading...