Hydraulic and earth engineering – Fluid control – treatment – or containment – Floatable matter containment
Patent
1995-06-06
1998-11-24
Tsay, Frank
Hydraulic and earth engineering
Fluid control, treatment, or containment
Floatable matter containment
405 80, 405 74, E02B 1504
Patent
active
058398538
ABSTRACT:
A system of structures uses the energy and properties of a stream flow to protect downstream structures from various potentailly damaging stream-flow-induced events. One element, a streamwise-vortex generator is placed upstream from a structure to protect it from impact by buoyant contaminates. The generator is positioned at a depth sufficiently below the surface to minimize the likelihood of contact with vehicles or debris. In this position it induces a vortex in the current flow whose axis is essentailly parallel to the streamwise flow. The vortex persists downstream of the generator and, migrating to the surface, deflects a debris away from the protected structure. Another element, a vorticity generator, causes interference with, and/or diversion of streambed-scouring vortices or eddies which are naturally generated adjacent the sides of structures. The result is protection of the streambed from damaging scour which would otherwise occur. A third element, a drag generator, is sited upstream from a structure to protect it from the damaging results of scour by significantly mitigating or eliminating the scour. The generator is positioned above the streambed so that it, along with the wake it produces, acts to reduce scour and/or contraction scour. Mounting and/or anchoring systems are also disclosed.
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Oppenheimer M. Leonard
Saunders W. Selden
Oppenheimer Max Stul
Tsay Frank
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