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

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

2000-02-09

arxiv.org/abs/physics/0002018v1

Physics

Fluid Dynamics

10 pages, 7 PS files. To appear in PRE

Scientific paper

10.1103/PhysRevE.61.R1016

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.

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