不同任意船首截面入水数值模拟

IF 1.2 Q3 ENGINEERING, MARINE

Journal of Naval Architecture and Marine Engineering Pub Date : 2014-12-21 DOI:10.3329/JNAME.V11I2.18724

P. Ghadimi, M. A. F. Chekab, A. Dashtimanesh

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引用次数: 32

摘要

船首总断面水冲现象是船体规划中的一个重要问题。本文研究了任意几个船首截面的入水问题。为此，考虑了由路易斯形式近似引入的任意弓形。为了获得压力分布和自由表面轮廓，Ansys-CFX求解器采用了流体体积法(VOF)和有限体积法(FVM)相结合的方法。本研究的主要特点是考虑了一些以前没有研究过的新的任意弓形截面。本研究的另一个动机是利用FVM/VOF的耦合数值解来研究任意船首截面的入水情况。给出了船首截面的压力分布、自由面和交点的演化，并展示了二次水冲击。将选定的当前研究结果与以前的研究结果进行比较，结果是一致的。DOI: http://dx.doi.org/10.3329/jname.v11i2.18724

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NUMERICAL SIMULATION OF WATER ENTRY OF DIFFERENT ARBITRARY BOW SECTIONS

Water impact phenomenon of general bow section is a critical event for planning hulls. In this paper, the water entry of several arbitrary bow sections is investigated. For this purpose, arbitrary bow shapes which are introduced by Lewis form approximation are considered. In order to obtain pressure distribution and free surface profile, volume of fluid (VOF) method coupled with finite volume method (FVM) are utilized in Ansys-CFX solver. The main feature of present study is consideration of some new arbitrary bow sections which have not been previously studied. Another motivation of the current work is investigation of water entry of arbitrary bow sections using a coupled numerical solution of FVM/VOF. Pressure distribution, free surface, and evolution of intersection point on bow sections are presented, while secondary water impact is demonstrated. Comparison of selected current findings against the results of previous studies indicates favorable agreement. DOI: http://dx.doi.org/10.3329/jname.v11i2.18724

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来源期刊

Journal of Naval Architecture and Marine Engineering ENGINEERING, MARINE-

CiteScore

2.50

自引率

5.60%

发文量

审稿时长

20 weeks

期刊介绍： TJPRC: Journal of Naval Architecture and Marine Engineering (JNAME) is a peer reviewed journal and it provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; under-water acoustics; satellite observations; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; aqua-cultural engineering; sub-sea engineering; and specialized water-craft engineering. International Journal of Naval Architecture and Ocean Engineering is published quarterly by the Society of Naval Architects of Korea. In addition to original, full-length, refereed papers, review articles by leading authorities and articulated technical discussions of highly technical interest are also published.