为了探究顺流向沟槽对螺旋桨表面流场的影响，选取桨叶0.7半径处的翼型剖面为研究对象，利用高时间分辨率粒子图像测速系统对“月牙形”翼型表面的流场进行试验测试研究，对比分析了0.7 mm沟槽表面翼型和光滑表面翼型在流速0.2、0.3和0.4 m/s以及迎角在5°、10°和15°的平均速度场、湍流度分布以及涡结构变化规律。试验结果表明，顺流向的沟槽可以有效降低近壁面的速度梯度并减少表面的涡结构分布，该现象在迎角10°、流速0.3 m/s时较为明显；随着流速和迎角的增加，沟槽对于流场的优化效果逐渐降低。
To investigate the influence of downstream grooves on the propeller surface flow field, the airfoil profile at the 0.7R blade radius was selected. The flow field over a crescent-shaped airfoil surface was experimentally studied using a high-time-resolved particle image velocimetry system. Comparative analyses were performed on the mean velocity fields, turbulence distributions, and vortex structures between grooved and smooth surface airfoils. These analyses were conducted at flow velocities of 0.2, 0.3, and 0.4 m/s, and angles of attack of 5°, 10°, and 15°. The results demonstrate that downstream grooves effectively reduce the near-wall velocity gradient and suppress vortex formation on the surface. This effect is most pronounced at an angle of attack of 10° and a flow velocity of 0.3 m/s. Furthermore, the flow field optimization provided by the grooves diminishes with increasing velocity and angle of attack.
2026,48(2): 1-6 收稿日期：2025-4-16
DOI：10.3404/j.issn.1672-7649.2026.02.001
分类号：U661.1
基金项目：黑龙江省自然科学基金资助项目（YQ2022E015）
作者简介：王诗洋(1981-),男,硕士,研究员,研究方向为舰船水动力性能
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