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Relationships between a roller and a dynamic pressure distribution in circular hydraulic jumps

Kensuke Yokoi and Feng Xiao
Phys. Rev. E 61, R1016(R) – Published 1 February 2000
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Abstract

We investigated numerically the relation between a roller and the pressure distribution to clarify the dynamics of the roller in circular hydraulic jumps. We found that a roller which characterizes a type II jump is associated with two high pressure regions after the jump, while a type I jump (without the roller) is associated with only one high pressure region. Our numerical results show that building up an appropriate pressure field is essential for a roller.

  • Received 14 July 1999

DOI:https://doi.org/10.1103/PhysRevE.61.R1016

©2000 American Physical Society

Authors & Affiliations

Kensuke Yokoi1,2 and Feng Xiao3

  • 1Division of Mathematics and Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan
  • 2Computational Science Division, RIKEN (The Institute of Physical and Chemical Research), Wako 351-0198, Japan
  • 3Department of Energy Sciences, Tokyo Institute of Technology, Yokohama 226-8502, Japan

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Vol. 61, Iss. 2 — February 2000

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