Observation of dust acoustic shock wave in a strongly coupled dusty plasma

Journal Article · Sun May 15 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4950832· OSTI ID:22600224

Boruah, A.; Nakamura, Y.

Dust acoustic shock wave is observed in a strongly coupled laboratory dusty plasma. A supersonic flow of charged microparticles is allowed to perturb a stationary dust fluid to excite dust acoustic shock wave. The evolution process beginning with steepening of initial wave front and then formation of a stable shock structure is similar to the numerical results of the Korteweg-de Vries-Burgers equation. The measured Mach number of the observed shock wave agrees with the theoretical results. Reduction of shock amplitude at large distances is also observed due to the dust neutral collision and viscosity effects. The dispersion relation and the spatial damping of a linear dust acoustic wave are also measured and compared with the relevant theory.

• OSTI ID: 22600224
• Journal Information: Physics of Plasmas, Vol. 23, Issue 5; Other Information: (c) 2016 Author(s); 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
COLLISIONS
COMPARATIVE EVALUATIONS
DAMPING
DISPERSION RELATIONS
DISPERSIONS
DUSTS
KORTEWEG-DE VRIES EQUATION
MACH NUMBER
PLASMA
REDUCTION
SHOCK WAVES
SOUND WAVES
SUPERSONIC FLOW
VISCOSITY