Hydrodynamic simulation for evaluating Magnus anti-rolling devices with varying angles of attack
Hydrodynamic simulation for evaluating Magnus anti-rolling devices with varying angles of attack
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DOI：
10.1016/j.oceaneng.2022.111949
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发表时间：
2022-09
影响因子：
5
通讯作者：
Jianfeng Lin;Chun-yu Guo;Dagang Zhao;Yang Han;Yu-min Su
中科院分区：
文献类型：
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作者：
Jianfeng Lin;Chun-yu Guo;Dagang Zhao;Yang Han;Yu-min Su
减摇装置的有效工作对保证船舶的安全性、舒适性、作战能力和性能具有重要意义。在这项研究中，基于马格努斯效应的原理的稳定剂进行了研究。采用改进的基于剪切应力输运的延迟分离涡模拟方法，对三维Magnus减摇装置在不同攻角下的水动力性能进行了研究。最后通过收敛性分析验证了该方法的准确性。分析了转速、攻角和来流速度对Magnus减摇装置升阻特性和尾流场的影响。结果表明，最佳尾旋比使升阻比最大。然而，在某些情况下，攻角和自旋比显着影响圆柱尾流中的流向和横向涡流结构。这些结果对马格努斯减摇装置的实际应用具有一定的参考价值。
The effective operation of anti-rolling devices is important for ensuring ship safety, comfort, combat capability, and performance. Stabilizers based on the principle of the Magnus effect were investigated in this study. The hydrodynamic performance of a three-dimensional Magnus anti-rolling device at different angles of attack was examined using the improved delayed detached eddy simulation method based on shear stress transport. Subsequently, a convergence analysis was performed to verify the accuracy of the method. Moreover, the effects of the rotational speed, angle of attack, and incoming flow speed on the lift–drag characteristics and wake flow field of the Magnus anti-rolling device were analyzed. The results indicated that the optimal spin ratio maximized the lift–drag ratio. However, in certain cases, the angle of attack and spin ratio significantly influenced the streamwise and crosswise vortex structures in the cylinder wake. These results would be useful for the practical application of Magnus anti-rolling devices.