Numerical Analysis on Wave Energy Absorption of OWC-type Wave Power Generation

J. Ocean Eng. Technol. 2006;20(4):64-69.

Kyoung, Jo-Hyun;Hong, Sa-Young;Hong, Do-Chun;

Maritime & Ocean Engineering Research Institute, KORDI;Maritime & Ocean Engineering Research Institute, KORDI;Center for Advanced Transportation Vehicules, Chungnam National University;

진동수주형 파력발전기의 에너지 흡수효율 해석

경조현;홍사영;홍도천;

한국해양연구원 해양시스템안전연구소;한국해양연구원 해양시스템안전연구소;충남대학교 첨단수송체연구소;

Keywords: Localized finite element method, Wave power generation, Oscillating water column, Energy absorption

핵심용어: 국소유한요소법, 파력발전, 진동수주, 에너지흡수

Abstract

A numerical analysis is made to investigate the wave absorption efficiency of a OWC-type wave power generator. Energy absorption by an OWC(Oscillating Water Column) air-chamber is computed in regular waves, taking account of the oscillating surface-pressure, due to pressure drop, across the duct of the air chamber. The problem is formulated in the scope of potential theory and solved by the Localized Finite Element Method(LFEM), based on the classical variational principle. The efficiency of energy absorption is investigated by. changing wave conditions, sea-bottom slope and pressure drop coefficient.