Fluid dynamic erosion control unit

Details Fluid dynamic erosion control unit Fluid dynamic erosion control unit

1982-02-05

1983-10-04

Taylor, Dennis L.

Hydraulic and earth engineering

Bank, shore, or bed protection

Wave or flow dissipation

405 22, 441 22, E02B 304

Patent

active

044076070

ABSTRACT:
A fluid dynamic erosion control unit comprises a hollow submersible body the buoyancy of which can be regulated. Arms projecting radially from the body carry paddle-like blades in at least some of which there are openings provided with flapper valves for permitting water to flow through the openings in one direction but not in the other. The unit is submerged in the water and rotatable about a vertical axis. When water flows past the unit, it exerts greater force on blades at one side where the valves are closed than on blades at the other side where the valves open, thereby causing the unit to rotate. The units can be used to protect a shoreline from erosion by creating turbulence which dissipates wave and current action and on the other hand can be used to effect local erosion below the units to protect waterways, harbors and moorings from silting-up.

REFERENCES:
patent: 2917755 (1959-12-01), Peck
patent: 3068655 (1962-12-01), Murray et al.
patent: 3148509 (1964-09-01), Laurie
patent: 3328750 (1967-06-01), Gimber et al.
patent: 3755836 (1973-09-01), Milazzo
patent: 3846990 (1974-11-01), Bowley
patent: 3848419 (1974-11-01), Bowley
patent: 4130994 (1978-12-01), Van Moss

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