Sentence examples for flap gate from inspiring English sources
noun
A device that allows water to flow in one direction only through a culvert; it is used especially to drain surface water from coastal marshes at low tide
Dry dock entrances are closed by gates of different designs, of which the sliding caisson and the flap gate, or box gate, are perhaps the most popular.
With its flap gate welded shut at one end and the insides lined with three coats of black epoxy pool paint, the container was dropped into the platform flooring of the living room.
The technology of movable sea barriers, from Stamford's modest flap gate to London's mighty 10-gate system in the Thames, has long intrigued engineers and planners contemplating a solution for low-lying areas of New York City.
For an ad-hoc combination of channel geometry and flap gate characteristics, modal excitation can give significantly larger response than for the case of a single or a sparse gate system.
The flap gate is hinged horizontally across the entrance and lies on the bottom, when in the open position, to be hauled up into the vertical position to close the dock a process occasionally facilitated by rendering the gate semibuoyant through the use of compressed air.
Hence many flap-gated division boxes were destroyed by removing the flap gates (see Fig. 4).
We consider a flap-gate farm, i.e. a series of P arrays, each made by Q neighboring flap gates, in an infinitely long channel.
We consider a wave energy converter made of an array of Q neighbouring floating flap gates with finite thickness in front of a straight vertical wall in constant depth.
Observations of suspended sediment concentration vary widely even for similar tidal and fresh water flow conditions, revealing the possible influence of wind speed, the storage effects of the water in the lagoon downstream of the observation site, and the complexity of the hydrodynamics downstream of tidal flap gates.
These observations, made immediately downstream of two parallel tidal flap gates by conductivity-temperature-depth (CTD) profiler, and also using bed-mounted sensor frames to measure velocity at 2 fixed depths, have yielded a set of results covering 11 tidal cycles over the period 2002 04.
(2004) and elsewhere, can help to provide information about the appropriate techniques for managing sediments and pollutants, including nutrients from sewage effluent waters, in estuaries where hydraulic flap gates are used to control the entry of fresh water over the tidal cycle.
