An Experimental Study on Shallow Water Effect in Slamming

J. Ocean Eng. Technol. 2009;23(1):60-66.

Kang Hyo-Dong,Oh Seung-Hoon,Kwon Sun-Hong

Daewoo Shipbuilding & Marine Engineering Co. Ltd,Graduate School Naval Architecture & Ocean Enginnering Pusan National Univerity,Naval Architecture & Ocean Enginnering Pusan National Univerity

천수에서의 슬래밍 현상에 대한 실험적 연구

강효동,오승훈,권순홍

대우조선해양,부산대학교 조선해양공학과 대학원,부산대학교 조선해양공학과

Keywords: Shallow water, Water impact, Impact pressure, Pressure time history, Pressure distribution, Spray jets

핵심용어: 천수, 입수충격, 충격 압력, 충격 압력 시계열, 압력 분포, 스프레이 제트

Abstract

This study presents an experimental investigation of the shallow water impact of a box type structure. The analysis was done based on the video images captured by a high speed camera, the flow field obtained by PIV (Particle Image Velocimetry), and pressure measurements in the divided region. The video images showed quite good agreement with the description given by Korobkin. The PIV measurements of the velocity field provided a clear view of the flow pattern for all three stages. The pressure was measured at the bottom of the tank with strain gauge type pressure gauges. The pressure measurements showed the characteristics of divided regions.