为解决现有水下潜器系统组成复杂、丢失后难以搜寻等问题，借鉴扇翼飞行器理念，提出扇翼推进水下潜器的新概念，弥补现有水下潜器的不足。针对扇翼推进水下潜器的核心装置扇翼推进器的水动力学问题，运用CFD方法计算不同的来流速度、叶片数量、转速、来流迎角和后缘夹角下的扇翼推进器的流场，揭示了扇翼推进器偏心涡、负升力和推力产生的机理，以及上述设计参数对扇翼推进器水动力的影响规律。结果表明：扇翼推进器叶片数取12即可；转速和后缘夹角对扇翼推进器升推比的影响规律相反，可通过权衡设计选定合适的转速和后缘夹角，设计出适配不同水下潜器的扇翼推进器。
To solve the problem of the existing underwater submersible, for example, complex system composition and difficult to search after loss, drawing onthe concept of fanwing aircraft, a new concept of fanwing-propelling underwater submersible is proposed to make up for the deficiency of existing underwater submersible. Aiming at the hydrodynamic problem of fanwing propeller which is the core device of fanwing-propelling underwater submersible, CFD method is used to calculate the flow field of fanwing propeller under the condition of different velocity、blade number、rotation speed、angle of attack and trailing edge angle. It reveals the formation mechanism of the eccentric vortex、negative lift and thrust, as well as the design parameters on the influence of hydrodynamic performance of fanwing propeller. The results show that 12 blades is enough; The effect of rotation speed and the trailing edge angle on the lift-to-thrust ratio is opposite. It can choose the appropriate rotation speed and trailing edge angle to design the fanwing propeller suitable for the different underwater submersible.
2021,43(1): 48-52,66 收稿日期：2019-11-19
DOI：10.3404/j.issn.1672-7649.2021.01.009
分类号：U664.31
作者简介：刘乐(1990-),男,工程师,研究方向为水下深潜器水动力学
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