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FLOW MODIFICATION DEVICE HAVING HELICAL STRAKES AND A SYSTEM AND METHOD FOR MODIFYING FLOW
A flow modification device connectable to a generally cylindrical element adapted for immersion in a fluid medium is provided. The device comprises an elongate body having a length and a generally circular cross-section; a plurality of raised body portions disposed about and extending along the length of the elongate body, the raised body portions having a height between 2% and 10% of a diameter of the body; and an aperture extending through the length of the elongate body, the aperture being adapted to receive the generally cylindrical element such that the flow modification device is arranged about the cylindrical element. The plurality of raised body portions are helically arranged or twisted about a longitudinal axis of the elongate body and are adapted to reduce vortex-induced vibration and/or drag on the cylindrical element when the device is connected to the cylindrical element and the connected device and cylindrical element are immersed in the fluid medium and there is relative movement between the connected device and cylindrical element and the fluid medium.
FLOW MODIFICATION DEVICE HAVING HELICAL STRAKES AND A SYSTEM AND METHOD FOR MODIFYING FLOW
A flow modification device connectable to a generally cylindrical element adapted for immersion in a fluid medium is provided. The device comprises an elongate body having a length and a generally circular cross-section; a plurality of raised body portions disposed about and extending along the length of the elongate body, the raised body portions having a height between 2% and 10% of a diameter of the body; and an aperture extending through the length of the elongate body, the aperture being adapted to receive the generally cylindrical element such that the flow modification device is arranged about the cylindrical element. The plurality of raised body portions are helically arranged or twisted about a longitudinal axis of the elongate body and are adapted to reduce vortex-induced vibration and/or drag on the cylindrical element when the device is connected to the cylindrical element and the connected device and cylindrical element are immersed in the fluid medium and there is relative movement between the connected device and cylindrical element and the fluid medium.
FLOW MODIFICATION DEVICE HAVING HELICAL STRAKES AND A SYSTEM AND METHOD FOR MODIFYING FLOW
POTTS ANDREW ELMHIRST (author) / MARCOLLO HAYDEN (author)
2021-09-02
Patent
Electronic Resource
English
IPC:
F15D
FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
,
Strömungsdynamik, d.h. Verfahren oder Vorrichtungen zum Beeinflussen der Strömung von Gasen oder Flüssigkeiten
/
B63B
Schiffe oder sonstige Wasserfahrzeuge
,
SHIPS OR OTHER WATERBORNE VESSELS
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
E21B
EARTH OR ROCK DRILLING
,
Erd- oder Gesteinsbohren
/
F16L
PIPES
,
Rohre
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