Potential Flow Analysis around Ship with Goose-neck Type Bulbous Bow Penetrating Free Surface

doi:2011.25.4.18

J. Ocean Eng. Technol. > Volume 25(4); 2011 > Article

J. Ocean Eng. Technol. 2011;25(4):18-22.
DOI: https://doi.org/10.5574/KSOE.2011.25.4.018

Choi Hee-Jong,Park Il-Heum,Kim Jong-Kyu,Kim Ok-Sam,Chun Ho-Hwan

Department of Naval Architecture & Ocean Engineering Chonnam National University,Department of Naval Architecture & Ocean Engineering Chonnam National University,Department of Naval Architecture & Ocean Engineering Chonnam National University,Departmen

자유수면을 관통하는 거위목 벌브를 가진 선박 주위의 포텐셜 유동해석

최희종,박일흠,김종규,김옥삼,전호환

전남대학교 수산해양대학 조선해양공학과,전남대학교 수산해양대학 조선해양공학과,전남대학교 수산해양대학 조선해양공학과,전남대학교 수산해양대학 조선해양공학과,부산대학교 공과대학 조선해양공학과

Keywords: Goose-neck type bulbous bow, 3600 TEU container ship, Inviscid flow analysis, Potential flow analysis, Panel method, Panel cutting method, Variable free surface panel method

핵심용어: 거위목 벌브형의 구상선수, 3600 TEU 컨테이너선, 비점성 유동해석, 포텐셜 유동해석, 패널법, 패널절단법, 가변 자유수면 패널법

Abstract

The Ranking source panel method was used to predict the flow phenomenon of a ship with a goose-neck type bulbous bow penetrating the free surface. The non-linearity of the free surface boundary condition was fully satisfied using an iterative calculation method, and the raised panel method was adopted to obtain a more stable solution at each iteration step. The panel cutting method was applied to generate a hull calculation grid at each iteration step, including the first step. At that time, the nose of the goose-neck type bulbous bow was divided by the free surface and the free surface panel was modified at each iteration step using the variable free surface panel method. Numerical calculations were performed to investigate the validity and efficiency of the applied numerical algorithm using the 3600 TEU container carrier. The computed wave resistance coefficients were compared with the experimentally achieved residual resistance coefficients.