Numerical Simulation of Flow around Free-rolling Rectangular Barge in Regular Waves

doi:2011.25.2.15

J. Ocean Eng. Technol. > Volume 25(2); 2011 > Article

J. Ocean Eng. Technol. 2011;25(2):15-20.
DOI: https://doi.org/10.5574/KSOE.2011.25.2.015

Jung Jae-Hwan,Yoon Hyun-Sik,Kwon Ki-Jo,Cho Sung-Joon

Department of Naval Architecture and Ocean Engineering Pusan National University,Advanced Ship Engineering Research Center Pusan National University,Department of Naval Architecture and Ocean Engineering Pusan National University,Department of Naval

규칙파중 횡동요 하는 사각형 바지선 주위 유동의 수치모사

정재환,윤현식,권기조,조성준

부산대학교 조선해양공학과,부산대학교 첨단조선공학연구센터,부산대학교 조선해양공학과,부산대학교 조선해양공학과

Keywords: Regular wave, Roll motion, Numerical wave tank, Two-phase flow, FSI(Fluid structure interaction)

핵심용어: 규칙파, 횡동요 운동, 수치조파수조, 이상유체, 유체-구조연성

Abstract

This study aimed at validating the adopted numerical methods to solve two-phase flow around a two-dimensional (2D) rectangular floating structure in regular waves. A structure with a draft equal to one half of its height was hinged at the center of gravity and free to roll with waves that had the same period as the natural roll period of a rectangular barge. In order to simulate the 2D incompressible viscous two-phase flow in a wave tank with the rectangular barge, the present study used the volume of fluid (VOF) method based on the finite volume method with a standard turbulence model. In addition, the sliding mesh technique was used to handle the motion of the rectangular barge induced by the fluid-structure interaction. Consequently, the present results for the flow field and roll motion of the structure had good agreement with those of the relevant previous experiment.