Steady hydrodynamic loads due to vortex shedding from the OTEC cold water pipe. Final report

Technical Report · Wed Jan 13 00:00:00 EST 1982

OSTI ID:5187485

Griffin, O M

This report is limited in scope to consideration of the problems caused by vortex shedding from flexible, bluff cylinders in steady current flows, as these problems apply to the OTEC cold water pipe. In particular, the steady deflections caused by the amplified drag forces that accompany vortex-excited oscillations are considered. Emphasis placed upon the discussion of design methods, applications of these methods to practical problems, and comparison with available experimental data. A discussion is given of laboratory and field studies that have been conducted with model OTEC cold water pipes. Various devices that have been developed for the suppression of vortex-excited oscillations also are discussed. A comparison is made of the effectiveness of various suppresion devices and procedures, and practical approaches to implementing their application are presented. The implications of vortex-induced hydrodynamic drag and the suppression of vortex-excited oscillations in OTEC cold water pipe design are discussed briefly.

• Research Organization: Naval Research Lab., Washington, DC (USA)
• OSTI ID: 5187485
• Report Number(s): AD-A-110459/5; NRL-MR-4698
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
OCEAN THERMAL ENERGY CONVERSION
DYNAMIC LOADS
DRAG
ENERGY CONVERSION
HYDRODYNAMICS
LOW TEMPERATURE
PIPES
SEAWATER
UNSTEADY FLOW
VORTICES
CONVERSION
FLUID FLOW
FLUID MECHANICS
HYDROGEN COMPOUNDS
MECHANICS
OXYGEN COMPOUNDS
SOLAR ENERGY CONVERSION
WATER
140800* - Solar Energy- Ocean Energy Systems