计及展弦比影响的船用舵水动力机理

朱军区, 侯立勋, 王庆才, 杨静, 常欣

doi:10.16411/j.cnki.issn1006-7736.2023.02.004

大连海事大学学报 >

2023 , Vol. 49 >Issue 2: 33 - 41

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2023.02.004

船舶与海洋工程

计及展弦比影响的船用舵水动力机理

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（大连海事大学船舶与海洋工程学院，辽宁大连 116026）

朱军区（1997 — ），男，硕士生，研究方向：船舶水动力数值计算。侯立勋*（1988 — ），男，博士，副教授，E-mail：07093129@163.com。王庆才（1999 — ），男，硕士生，研究方向：船舶水动力数值计算。杨静（1999 — ），女，硕士生，研究方向：船舶推进与节能技术。常欣（1978 — ），男，博士，教授，博士生导师。

收稿日期: 2023-02-21

修回日期: 2023-03-31

网络出版日期: 2023-02-21

基金资助

中国博士后科学基金面上项目（2020M680935）；辽宁省高等学校基本科研项目（LJKMZ20220367）

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Hydrodynamic mechanism of marine rudder considering the influence of aspect ratio

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(School of Naval Architecture and Ocean Engineering，Dalian Maritime University, Dalian 116026, China)

Received date: 2023-02-21

Revised date: 2023-03-31

Online published: 2023-02-21

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摘要

为探究不同展弦比影响下船用舵水动力机理，采取黏流CFD技术对不同展弦比的船用舵在不同舵角下的水动力性能进行数值模拟。首先，开展网格无关性分析，并基于试验结果对数值模拟方法的准确性进行验证；然后，根据船用舵的表面压力分布、速度流场分布及尾涡形态分别诠释其水动力机理。研究表明，展弦比越大，越容易引起流动分离，最终导致失速现象提前产生；随着展弦比增大，最佳升阻比对应的舵角会产生前移；随着舵角增大，流动分离点会逐渐前移。

关键词： 船用舵; 展弦比; 计算流体力学（CFD）; 水动力性能; 流动分离

本文引用格式

朱军区, 侯立勋, 王庆才, 杨静, 常欣 . 计及展弦比影响的船用舵水动力机理[J]. 大连海事大学学报, 2023 , 49(2) : 33 -41 . DOI: 10.16411/j.cnki.issn1006-7736.2023.02.004

Abstract

In order to explore the hydrodynamic mechanism of marine rudders under the influence of different aspect ratios, the viscous CFD technology is adopted to simulate the hydrodynamic performance of marine rudders with different aspect ratios at different rudder angles. Firstly, the grid independence analysis is carried out, and the accuracy of the numerical simulation method is verified based on the experimental results. Then the hydrodynamic mechanism of the rudder is explained according to the surface pressure distribution, velocity flow field distribution and wake vortex shape of the rudder. The research shows that the greater the aspect ratio, the easier it is to cause flow separation, and eventually the stall phenomenon will occur in advance. As the aspect ratio increases, the rudder angle corresponding to the optimal lift-drag ratio will move forward. With the increase of rudder angle, the flow separation point will gradually move forward.

Key words： marine rudder; aspect ratio; computational fluid dynamics(CFD); hydrodynamic performance; flow separation

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