Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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An Experimental Study of Pneumatic Damping at the Air Chamber for an OWC-type Wave Energy Device

OWC형 파력발전 공기챔버의 공기감쇠력 실험 연구

  • CHOI HARK-SUN (Ocean Development System Laboratory, KORDI) ;
  • HONG SEOK-WON (Ocean Development System Laboratory, KORDI) ;
  • KlM JIN-HA (Ocean Development System Laboratory, KORDI) ;
  • LEW JAE-MOON (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
  • 최학선 (한국해양연구원 해양개발시스템연구본부) ;
  • 홍석원 (한국해양연구원 해양개발시스템연구본부) ;
  • 김진하 (한국해양연구원 해양개발시스템연구본부) ;
  • 류재문 (충남대학교 선박해양공학과)
  • Published : 2004.08.01
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Abstract

Pneumatic damping through an orifice-type duct for an OWC-type wave energy device is studied experimentally. Forced oscillation tests are used to measure chamber pressure and velocity of air-flow through an orifice. Pneumatic damping coefficients are deducted from the experimental research, and the influence of frequency, heave amplitude, and orifice size are discussed. Finally, two formulas are proposed for the estimation of non-dimensional pneumatic damping coefficient by regression analysis. The proposed formula proves to be a reliable method for practical application.

Keywords

References

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