Numerical Analysis for Hull Cleaning ROV Resistance Performance

J. Ocean Eng. Technol. 2008;22(6):64-74.

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

Dept. of Naval architect and ocean engineering Pusan National University,Advanced Ship Engineering Research Center Pusan National University,Dept. of Naval architect and ocean engineering Pusan National University,Daewoo Shipbuilding & Marine Engineeri

선저청소로봇 저항성능 전산해석

서장훈,윤현식,전호환,김수호,김태형,우종식,주영석

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

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

핵심용어: 무인 잠수정, 저항성능, 선형

Abstract

The flaw around a ROV (Remotely Operated Vehicle) has been numerically investigated to improve resistance performance by modifying the hull form of the ROV. For the base hull form considered in this study, the form drag rather than the friction drag is dominant to the total drag Subsequently, the surfaces on which the local pressure highly acts have been modified to produce the streamlined-shape. Based on the surface modification, seven different hull forms have been chosen as candidates for drag reduction. Among the candidates, the semi-sphericalized housing and the streamlined-bow achieved greatest drag reduction comparing with the others. Consequently, the hull form combined with the semi-sphericalized housing and the streamlined-bow gave approximately 17% drag reduction at the design velocity of 3 knots.