Computational hydrodynamic analysis of a highly skewed marine propeller

IF 1.2 Q3 ENGINEERING, MARINE

Journal of Naval Architecture and Marine Engineering Pub Date : 2018-06-19 DOI:10.20944/preprints201806.0307.v1

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.

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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

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.