String을 이용한 원형실린더 주위의 수평력 감소에 관한 연구

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 32; no. 4; pp. 237 - 243
• Main Authors: 백동일(Dong-Il Baek), 조효제(Hyo-Jae Jo), 이민준(Min-Jun Lee), 임재환(Jae-Hwan Lim), 이태경(Tae-Kyung Lee), 김재희(Jae-Heui Kim), 오태원(Tae-Won Oh)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2018
• Subjects: 해양공학; Circular cylinder 원형실린더; Lateral force 수평력; Drag force 항력; VIV(Vortex induced vibration)와 유기 진동; Model test 모형실험; VIV(Vortex induced vibration)
• ISSN: 1225-0767; 2287-6715
• DOI: 10.26748/KSOE.2018.6.32.4.237

Recently, it was predicted that the size of offshore markets will grow as gas prices edge up. This paper presents experimental results for using strings as a suppression device on a circular cylinder and discusses the various data. A test model was used to investigate the role of strings by varying the thickness of the strings used to suppress a cylinder's lateral force taking into account the effect of turbulence promoted. A substantial amount of experimental data were taken from experiments performed on cylinders at Reynolds number up to a maximum value of $10^5$. The suppression of vortex shedding and a lateral force reduction of up to 70% were observed for the cylinder with strings.