Numerical Analysis of Free Surface Flow around Blunt Bow Ship Model |
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 |
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© 2012 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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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. |
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