Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지

Reverse Drift Force of a Floating 2D-BBDB Wave Energy Absorber

2D-BBDB형 파 에너지 흡수장치 에 작용하는 음의 시간평균 파 표류력 해석

  • Hong, Do-Chun (Center for Advanced Transportation Vehicules, Chungnam National University) ;
  • Hong, Sa-Young (Ocean Development System Laboratory, KRISO, KORDI) ;
  • Hong, Seok-Won (Ocean Development System Laboratory, KRISO, KORDI) ;
  • Kim, Hyeon-Ju (Ocean Development System Laboratory, KRISO, KORDI)
  • 홍도천 (충남대 첨단수송체연구소) ;
  • 홍사영 (한국해양연구원 해양개발시스템연구본부) ;
  • 홍석원 (한국해양연구원 해양개발시스템연구본부) ;
  • 김현주 (한국해양연구원 해양개발시스템연구본부)
  • Published : 2003.10.24
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Abstract

The motion and time-mean drift force of a 2-D floating BBDB in waves are studied with and without taking account of fluctuating air pressure in the air chamber. It has been found numerically that the drift for a of the BBDB is in the reverse direction of propagation of the incident waves over specific frequency ranges as found by McCormick through his experiment work. The drift force is calculated by Pinkster's near-field method. Since Maruo's formula method for the drift force is always positive, Maruo's formula is only approximate and should be replaced by the correct near-field method.

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