摘要
基于SST(剪切应力输运)k-ω湍流模型与滑移网格技术,对不同进速系数(J=0.95,1.18,1.58)及不同斜流角(β=0°,10°,20°)下泵喷推进器流场变化规律进行了数值分析.利用P4119桨进行了数值方法验证,并进行网格无关性验证.为保证计算结果的准确性,采用全通道模型及全结构网格进行数值计算.计算结果表明:随着斜流角的增大,横向力和垂向力出现明显波动,不同斜流角间的波动幅度相对一致,且随着斜流角的增大而减小;随着进速系数及斜流角的变化,压力系数在转子导边、随边处出现明显波动差异,定子叶片压力系数波动比较稳定.
Based on the SST(shear stress transport)turbulence model k-ωand the slip grid technique,the numerical analysis of the variation laws of the pump-jet propulsor at different advance ratio(J=0.95,1.18,1.58)and different oblique flow angles(β=0°,10°,20°)were presented.The P4119 propeller was used to verify the numerical method,and grid independence verification was performed.To ensure the accuracy of the calculation results,the full channel model and the full structure grid were used for numerical calculation.The calculation results show that the transverse force and vertical force fluctuate obviously with the increase of the oblique flow angle,and the fluctuations amplitude of the transverse force and vertical force between different oblique angles is relatively consistent,which would decrease with the increase of the oblique flow angle.With the change of the advance ratio and the oblique flow angle,the pressure coefficient has obvious fluctuations at the leading edge and the edge of the rotor,and the pressure coefficient of the stator blade is relatively stable.
作者
邱铖铖
潘光
黄桥高
施瑶
QIU Chengcheng;PAN Guang;HUANG Qiaogao;SHI Yao(School of Marine Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China;Key Laboratory of Unmanned Underwater Vehicle Technology of Ministry of Industry and Information Technology,Northwestern Polytechnical University,Xi’an 710072,China)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第4期103-108,共6页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(51979226)
中央高校基本科研业务费专项基金资助项目(3102019HHZY030019).
关键词
泵喷推进器
斜流
轴承力
数值计算
压力系数
pump-jet propulsor
oblique flow
bearing force
numerical calculation
pressure coefficient
