摘要
为揭示船用水翼抽吸增效的水动力性能,采用Fluent软件进行了相关影响因素的分析.数值模拟采用NACA0012对称翼型,湍流模型选用kω-SST.结果表明:安装抽吸口可改善水翼的水动力性能;吸口数目增加,升力系数下降,阻力系数先降低后增加,存在最佳的升阻比;两吸口距离增大,升力系数下降,水动力性能随之下降;吸口位置后移,升力系数增加,阻力系数降低,水动力性能随之提高;吸口宽度增加,升力系数、阻力系数、升阻比均呈波动状态.
In order to reveal the hydrodynamic performance of the hydrofoil with suction synergism,a parametric study is conducted with the software of Fluent,in which a symmetrical NACA0012 airfoil is selected and the kω-SST turbulence model is utilized.The results show that the setting of suction inlets improves the hydrodynamic performance of the hydrofoil,and that,with the increase in suction inlet number,the lift coefficient decreases,while the drag coefficient first decreases and then increases,which means that there exists an optimal lift-to-drag ratio.Moreover,it is found that the lift coefficient decreases and the hydrodynamic performance degrades with the increase of the distance between two suction inlets,that the lift coefficient increases and the drag coefficient decreases with the retropulsion of suction inlets,thus improving the hydrodynamic performance,and that the lift coefficient,the drag coefficient and the lift-to-drag ratio all fluctuate with the widening of suction inlets.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第11期155-160,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(41176074)
中国高校博士点基金资助项目(20102304120026)
哈尔滨工程大学中央高校基本科研业务费专项资金资助项目(HEUCFT1001)
关键词
船用水翼
前缘抽吸
数值模拟
失速角
升阻比
hydrofoil
front suction
numerical simulation
stalling angle
lift-to-drag ratio
