A Study on Flow Structure of Breaking Wave through PIV Analysis

J. Ocean Eng. Technol. 2009;23(1):43-47.

Jo Hyo-Jae,Lee Eon-Ju,Doh Deog-Hee

Division of Naval Architecture & Ocean system Engineering Korea Maritime Univ.,Dept. of Ocean system Engineering Graduate School Korea Maritime Univ.,Division of Mechanical and Information Engineering Korea Maritime Univ.

PIV기법을 활용한 쇄파의 유동구조 해석

조효제,이언주,도덕희

한국해양대학교 조선해양시스템공학부,한국해양대학교 대학원 해양시스템공학과,한국해양대학교 기계.정보공학부

Keywords: PIV method, Breaking wave, Flow analysis, Composition wave, Perturbation method

핵심용어: PIV기법, 쇄파, 유동해석, 합성파, 섭동법

Abstract

This paper compares theoretical wave profile and particle kinematics with experimental results generated by a 2 D wave tank. Particle velocity fields of compound waves were acquired using a PIV technique. Synchronization was applied to acquire images of the wave fields, and the time gap between these images was controlled by the user. This technique was applied to investigate the wave breaking mechanism, and the wave profile and velocity distribution in a wave breaking field was obtained.