Numerical Study on the Enhancement of the Resistant Performance of ROV

J. Ocean Eng. Technol. 2010;24(4):23-31.

Seo Jang-Hoon,Jeon Chung-Ho,Yoon Hyun-Sik,Chun Ho-Hwan,Kim Su-Ho,Kim Tae-Hyung,Woo Jong-Sik,Joo Young-Sock

Dept. of Naval Architect and Ocean Engineering Pusan National University,Dept. of Naval Architect and Ocean Engineering Pusan National University,Advanced Ship Engineering Research Center Pusan National University,Dept. of Naval Architect and Ocean Eng

선저청소로봇 저항성능 향상에 관한 수치적 연구

서장훈,전충호,윤현식,전호환,김수호,김태형,우종식,주용석

부산대학교 조선해양공학과,부산대학교 조선해양공학과,부산대학교 첨단조선공학연구센터,부산대학교 조선해양공학과,대우조선해양(주),대우조선해양(주),대우조선해양(주),대우조선해양(주)

Keywords: Remotely operated vehicle(ROV), Resistant performance, Hull form, Boat-tail

핵심용어: 무인 잠수정, 저항성능, 형상, 보트 테일

Abstract

The flow around a remotely-operated vehicle (ROV) has been investigated numerically to improve the resistant performance by modifying the hull form of the ROV. In the case of the base hull form considered in this study, form drag rather than friction drag was the dominant component of total drag. Subsequently, the surfaces that were most susceptible to local pressure effects were modified to give them a more streamlined shape. Eleven different hull forms were chosen to undergo surface modification for drag reduction. In addition, four different boat-tail appendages with different slant angles were installed at the stern to reduce the wake vortices that are induced by the local regions of very low pressure. Consequently, a total of 11 different hull forms for drag reduction were considered. The final hull form, which combined the hull for which surface modification resulted in the lowest drag with a boat-tail appendage with a 15-degree slant angle, resulted in a drag reduction of 20%.