Study on hydrodynamic performance of cycloidal propeller with flap at the trailing edge

Study on hydrodynamic performance of cycloidal propeller with flap at the trailing edge
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后缘襟翼摆线桨水动力性能研究

DOI:
10.1016/j.oceaneng.2021.109657
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发表时间:
2021-10
期刊:
影响因子:
5
通讯作者:
Y.C. Jiang
Y.C. Jiang
中科院分区:
工程技术2区
文献类型:
--
作者:
Z. Sun;H. Li;Z.H. Liu;W.Q. Wang;G.Y. Zhang;Z. Zong;Y.C. Jiang

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本文采用CFD方法对尾缘带襟翼摆线螺旋桨的水动力性能进行了研究。在不失一般性的前提下,本文以三叶摆线螺旋桨为研究对象。本文首先根据文献中的实验结果对CFD模型进行了验证。在此基础上,通过施加反虚弧运动、正弦运动和反虚弧加正弦运动三种不同的襟翼运动模式,研究了襟翼对水动力特性的影响。仿真结果表明,在大前进系数时,反虚弧运动和正弦运动分别能有效地减小侧向推力和提高效率。而这两种效应可以通过这两种运动的线性叠加同时实现。分析了襟翼绕流的机理及其对摆线螺旋桨水动力性能的影响。
In this paper, the hydrodynamic performance of cycloidal propeller with flap at the trailing edge are investigated by CFD (Computational Fluid Dynamics) method. Without losing the generality, the study is based on three-blade cycloidal propeller. The CFD model is first validated against experimental result in the literature. On this basis, the influence of flap on the hydrodynamics is investigated by enforcing three different flap motion patterns, which are anti-virtual camber motion, sinusoidal motion, and anti-virtual camber plus sinusoidal motion. The simulation results show that the anti-virtual camber and sinusoidal motions are effective to reduce the side thrust and increase the efficiency at high advance coefficient respectively. And these two effects can be achieved at the same time by the linear superposition of these two types of motions. The mechanisms of the flow with flaps and its influence on the hydrodynamic performance of the cycloidal propeller are analyzed.
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