Computational hydrodynamic analysis of a highly skewed marine propeller

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Houari Hussein, K. Boumediene, S. E. Belhenniche, O. Imine, M. Bouzit
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引用次数: 3

Abstract

 The objective of the current paper is to study the flow around Seiun Maru Highly Skewed (HSP) marine propeller by assessment of blade forces and moments under non-cavitating case. The calculations are performed in open water (steady case) and non-uniform ship wake (Unsteady case). The governing equations based on Reynolds Averaged Navier-Stokes Equation (RANSE) are solved using Finite Volume Method. Ansys Fluent 14.0 is used to implement the simulation. For the steady case, Moving Reference Frame (MRF) is selected while sliding mesh technique is adopted for the unsteady case. Calculated open water performances in terms of thrust and torque coefficients fit very well with experimental data for a wide range of advance ratio. In the unsteady calculations, axial velocities, deduced from the nominal wake, are introduced in the Ansys fluent code. To locate suitably the non-uniform wake in the propeller front plane, three positions of inlet wake have been taken into account to determine their effects on the accuracy of the results. Obtained results show that computed performances are improved compared to panel method when the inlet is close to the propeller.  
大偏斜船用螺旋桨的计算水动力分析
本文的目的是通过评估无空化情况下的叶片力和力矩来研究Seiun Maru高倾斜(HSP)船用螺旋桨周围的流动。计算是在开放水域(稳定情况)和非均匀船舶尾流(非稳定情况)下进行的。采用有限体积法求解了基于雷诺平均Navier-Stokes方程的控制方程。Ansys Fluent 14.0用于实现仿真。对于稳定情况,选择移动参考系(MRF),而对于非稳定情况,则采用滑动网格技术。根据推力和扭矩系数计算的开放水域性能与大范围推进比的实验数据非常吻合。在非定常计算中,在Ansys fluent程序中引入了从标称尾流推导出的轴向速度。为了适当地定位螺旋桨前平面中的非均匀尾流,考虑了三个入口尾流位置,以确定它们对结果准确性的影响。计算结果表明,当进气道靠近螺旋桨时,与面板法相比,计算性能有所提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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