국소유한요소법을 이용한 진동수주형 파력발전 구조물의 파에너지 흡수력 해석

Abstract

A localized finite element method is applied for OWC-type wave power generation to investigate the efficiency of energy absorption. Energy absorption by OWC(Oscillating Water Column) air-chamber is computed in regular wave 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 finite element method based on variational principle. The efficiency of energy absorption is investigated by changing wave condition, sea-bottom slope and pressure drop coefficient.