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A Study on Motion and Wave Drift Force of a BBDB Type OWC Wave Energy Device  

Kim Jin-Ha (Ocean System Technology Department, MOERI/KORDI)
Lew Jae-Moon (Naval Architecture & Ocean Engineering Department, Chungnam National University)
Hong Do-Chun (Naval Architecture & Ocean Engineering Department, Chungnam National University)
Hong Seok-Won (Ocean System Technology Department, MOERI/KORDI)
Publication Information
Journal of Ocean Engineering and Technology / v.20, no.2, 2006 , pp. 22-28 More about this Journal
Abstract
The motion and wave drift forces of floating BBDB (backward-bent duct buoy) wave energy absorbers in regular waves are calculated, taking account of the oscillating surface-pressure due to the pressure drop in the air chamber above the oscillating water column, within the scope of the linear wave theory. A series of model tests has been conducted in order to order to verify the motion and time mean wave drift force reponses in regular waves at the ocean engineering basin, MOERI/KORDI. The pneumatic damping through an orifice-type duct for the BBDB wave energy device are deducted from experimental research. Numerical simulation for motion and drift force responses of the BBDB wave energy device, considering pneumatic damping coefficients, has been carried out, and the results are compared with those of model tests.
Keywords
Oscillating water column; BBDB (Backward-bent duct buoy); Pneumatic damping coefficient; Regression analysis; Wave drift force; Model test; Numerical simulation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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