Hydrodynamic characteristics of propeller of subsea mining vehicle

被引：0
|
作者：
Dai Y. [1 ]
Zhang Y.-Y. [1 ]
Bian J.-N. [1 ]
Ma W.-B. [1 ]
Chen X. [1 ]
机构：
[1] School of Mechanical and Electrical Engineering, Central South University, Changsha
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2021年 / 31卷 / 10期
基金：
中国国家自然科学基金;
关键词：
CFD; Ducted propeller; Flowing efficiency; Number of blades; Oblique flow;
D O I：
10.11817/j.ysxb.1004.0609.2021-37995
中图分类号：
学科分类号：
摘要：
In order to grasp the influencing factors of the hydrodynamic performance of the ducted propeller of the submarine operating vehicle, and effectively improve the hydrodynamic performance, the 19A Ka-4-55 ducted propeller was modeled parametrically, and its hydrodynamic performance was simulated and analyzed by the CFD method. The hydrodynamic coefficients of the 19A Ka-4-55 ducted propeller at different advance speeds were obtained. The results were fitted with experimental experience values, and a test platform was built to verify the simulation, and the hydrodynamic performance of the ducted propeller under the influence of different numbers of blades and diagonal flow was analyzed. The results show that the CFD numerical simulation results are consistent with the ducted propeller test chart. In a certain range, more blades can increase thrust, but fewer blades are more efficient, and the propeller moment coefficient is proportional to the number of blades; Under the diagonal flow action, the protection and diversion effect of the duct on the propeller can reduce the propeller pressure parameters and reduce the incidence of propeller cavitation. The hydrodynamic performance of the ducted propeller is significantly better than that of the ductless propeller. © 2021, China Science Publishing & Media Ltd. All right reserved.
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页码：2771 / 2781
页数：10
相关论文
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