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Hydrodynamic analyses of an underwater fan-wing thruster in self-driving and towing experiments
Measurement ( IF 5.6 ) Pub Date : 2020-06-25 , DOI: 10.1016/j.measurement.2020.108132
Tianzhu Gao , Yang Lin , Hongliang Ren , Zion Tsz Ho Tse

Fan-wing thrusters are primarily used for aircraft propulsion, but their potential for underwater applications has also been demonstrated. Although many achievements have been made through experimentation, there still remains much work to be done in mechanism and hydrodynamic analyses, especially for the underwater fan-wing thruster (UFT). In this work, experiments are designed and carried out for a UFT. Both self-driving and towing experiments are conducted with a custom-made experiment device. In the self-driving experiments, vertical force and velocity are measured at different rotational speeds of the cross-flow fan. Then, for studying the hydrodynamic performance, specific towing experiments and computational fluid dynamics (CFD) simulations are carried out. Simulation results are in good agreement with the towing experiment results. On the basis of the CFD simulation results, specific unique characteristics are identified. Finally, a physical model is built and analyzed, and the mechanism and distinctive characteristics are explained by the physical model.



中文翻译:

水下扇翼推进器自驾和牵引实验的水动力分析

扇翼推进器主要用于飞机推进,但其在水下应用的潜力也得到了证明。尽管通过实验已经取得了许多成就,但是在机构和流体动力学分析方面仍然有很多工作要做,特别是对于水下扇翼推进器(UFT)。在这项工作中,为UFT设计并进行了实验。无人驾驶和牵引实验均使用定制的实验设备进行。在自动驾驶实验中,在横流风扇的不同转速下测量垂直力和速度。然后,为了研究水动力性能,进行了特定的牵引实验和计算流体动力学(CFD)模拟。仿真结果与拖曳实验结果吻合良好。根据CFD模拟结果,可以确定特定的独特特征。最后,建立并分析了物理模型,并通过物理模型解释了机理和独特特征。

更新日期:2020-06-25
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