Experimental Study of Motion Behavior of Side-by-Side Moored Two Floating Bodies Including Sloshing in Head Sea

doi:2012.26.6.46

J. Ocean Eng. Technol. > Volume 26(6); 2012 > Article

J. Ocean Eng. Technol. 2012;26(6):46-52.
DOI: https://doi.org/10.5574/KSOE.2012.26.6.046

Cho Seok-Kyu,Sung Hong-Gun,Hong Jang-Pyo,Hong Sa-Young,Hong Seok-Won

Maritime and Ocean Engineering Research Institute KIOST,Maritime and Ocean Engineering Research Institute KIOST,Maritime and Ocean Engineering Research Institute KIOST,Maritime and Ocean Engineering Research Institute KIOST,Maritime and Ocean Engineer

선수파 중 슬로싱을 고려한 병렬배치된 두 부유체의 거동 특성에 관한 실험 연구

조석규,성홍근,홍장표,홍사영,홍석원

한국해양과학기술원 선박해양플랜트연구소,한국해양과학기술원 선박해양플랜트연구소,한국해양과학기술원 선박해양플랜트연구소,한국해양과학기술원 선박해양플랜트연구소,한국해양과학기술원 선박해양플랜트연구소

Keywords: Sloshing, Side-by-Side, Floating Body, Experiment, Gap Flow

핵심용어: 슬로싱, 병렬배치, 부유체, 모형시험, 틈새유동

Abstract

The motions and drift forces of side-by-side moored FSRU and LNGC including the sloshing effect, were studied using experiments. The FSRU and LNGC contained LNG cargo tanks and the LNG sloshing could affect the motions and drift forces of the structures due to its coupling with floating body motion. The effect of coupling can vary with the LNG filling level, and the effect of the filling level was investigated. The coupling effect was stronger at lower filling level. It was confirmed that longitudinal sloshing influenced the surge and surge mean drift force in head sea. In addition, gap flow affected the sway and mean drift forces. Sloshing attenuated the sway and yaw excited by gap flow in side-by-side configuration.