华中科技大学学报（自然科学版）2024，Vol.52Issue(4)：94-99,6.DOI:10.13245/j.hust.240065
巡航状态下泵喷推进潜艇尾部喷流涡特性研究
Study on characteristics of pump-jet propelled submarine tail jet vortex under cruising conditions
摘要
Abstract
The detached eddy simulation(DES)model was used to simulate the pump-boat model under cruising conditions.Ω criterion was used to identify and capture the vortex structure in the flow field of the pump jet tail at different speeds,and the dynamic characteristics of the jet vortex were studied.Results show that the external flow around the submarine and the pump-jet propeller could interact with the tail flow,resulting in different flow field regions.With the increase of speed,the irrotational zone and the range of flow field diffusion zone increase,the body flow around the jet and the tail flow produce strong coupling effect at a faster speed,and develop and move along the opposite direction of the submarine.The range and energy of shear layer vortexes and the energy of shedding vortexes also increase with the speed increasing.During the rotation period,the hub vortex and the shedding vortex in the middle of the flow field have weak mutual influence,and the two vortices rotate irregularly along the rotating direction of the impeller,while the two vortices at the tail of the flow field produce complex influences and produce irregular changes and movements with time.关键词
泵喷推进器/巡航状态/尾部喷流/涡特性/Ω准则Key words
pump-jet propulsion/cruising conditions/tail jet/vortex characteristic/Ω criterion分类
交通工程引用本文复制引用
郭荣,王乾年,韩伟,李舟睿..巡航状态下泵喷推进潜艇尾部喷流涡特性研究[J].华中科技大学学报（自然科学版）,2024,52(4):94-99,6.基金项目
国家自然科学基金资助项目(52009050) （52009050）
中国博士后科学基金资助项目(2020M673537) （2020M673537）
甘肃省自然科学基金资助项目(20JR10RA172) （20JR10RA172）
兰州理工大学红柳优秀青年人才支持计划项目. （）
