无轴泵喷推进器敞水特性.pdf

第 卷第 期 兵 工 学 报
42 4 fluid dynamics ( CFD ) approach is used to analyze and compare the
hydrodynamic performances of SPT, traditional mechanical pump-jet thruster and E779A propeller. The
definition of hydrodynamic efficiency of SPT is also discussed. The results show that the open-water
efficiency of SPT reaches 0. 662, which is lower than that of the conventional propeller. The high-
efficiency working range of SPT is rather wider than that of the propeller, which means that SPT is able to
work efficiently under more working conditions. Finally, a test bench is designed for the hydrodynamic
test of SPT and the verification of the numerical simulation model of SPT above.
Keywords
: shaftless pump-jet thruster; hydrodynamic performance; numerical calculation; open-water
efficiency; hydrodynamic test
收稿日期:
2020-05-10
基金项目: 国家自然科学基金项目
(51877213、51875573、51690181)
作者简介: 祝昊 男 助理研究员 博士
(1990—), , , 。 E-mail: zhuhaoyx@ foxmail. com
通信作者: 靳栓宝 男 副研究员 博士
(1983—), , , 。 E-mail: hjgcjin@ 163. com兵 工 学 报 第 卷
836 42