Numerical Analysis of Free Surface Flow around Blunt Bow Ship Model

doi:2012.26.1.9

J. Ocean Eng. Technol. > Volume 26(1); 2012 > Article

J. Ocean Eng. Technol. 2012;26(1):9-16.
DOI: https://doi.org/10.5574/KSOE.2012.26.1.009

Park Il-Ryong,Suh Sung-Bu,Kim Jin

Department of Naval Architecture and Ocean Engineering Dong-Eui University,Department of Naval Architecture and Ocean Engineering Dong-Eui University,Marine Transportation Research Department KORDI Daeduck Branch

뭉뚝한 선수 선형 주위 자유수면 유동 수치 해석

박일룡,서성부,김진

동의대학교 조선해양공학과,동의대학교 조선해양공학과,한국해양연구원 대덕분원 해양운송연구부

Keywords: Blunt bow, Computational fluid dynamics (CFD), Reynolds averaged navier-stokes(RANS) method, Wave breaking, Two-phase flow, Validation

핵심용어: 뭉뚝한 선수, CFD 전산유체역학, RANS기법, 쇄파, 2상유동, 검증

Abstract

This paper presents the numerical results of a simulation of the free surface flow around a blunt bow ship model and focuses on the validation of the proposed method with a brief investigation of the relation between the resistance and free surface behavior. A finite volume method based on the Reynolds Averaged Navier-Stokes (RANS) approach is used to solve the governing flow equations, where the free surface, including wave breaking,is captured by using a two-phase Level-Set (LS) method. For turbulence closure, a two equation k-${varepsilon}$ model with the standard wall function technique is used. Finally, the numerical results are compared with the available experimental data, showing good agreement.