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Title: Hydraulic jumps in inhomogeneous strongly coupled toroidal dust flows

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4955329· OSTI ID:22600063
;  [1]
  1. IEAP, Christian-Albrechts-Universität, D-24098 Kiel (Germany)

The inhomogeneous flow of strongly coupled dust particles in a toroidal particle trap with harmonic radial confinement is analyzed in the incompressible fluid limit. It is shown that the flow can spontaneously generate shock-like events, which are similar to the hydraulic jump in open channel flows. A definition of the Froude number for this model is given and the critical speed is recovered as the group velocity of surface waves. This hydraulic model is compared with molecular-dynamics simulations, which show that a sudden bifurcation of the flow lines and a localized temperature peak appear just at the point where the critical condition for the hydraulic jump is located.

OSTI ID:
22600063
Journal Information:
Physics of Plasmas, Vol. 23, Issue 7; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
Country of Publication:
United States
Language:
English