摘要
摇帆能改善帆的气动特性,提高帆板动力,利用CFD软件FLUENT模拟计算摇帆的非稳态过程,采用动网格技术实现摇帆的非稳态过程,通过用户自定义函数(User-Defined Function,UDF)定义摇帆的周期性运动,计算模拟得到摇帆空气动力特性的变化过程,与稳态帆比较了帆面气压分布、升力阻力系数,并对平摇转摇的气动特性进行对比分析,结果表明摇帆能大幅提高帆的气动特性。
Windsurfing pumping can improve the aerodynamic performance of sail and the driving force. The unsteady process was simulated by CFD soft ware FLUENT. Based on the dynamic mesh method, wind-surfing pumping simulation was implemented. Using UDF （User Define Function） define the cyclical movement of windsurfing pumping. The performance of sail during windsuring pumping was obtained to compare with steady state, including pressure distributing on sail and the change of lift drag coefficient. It is obvious that the aerodynamic performance of sail is enhanced in windsurfing pumping and gives useful advice to analyze windsurfing pumping.
出处
《空气动力学学报》
EI
CSCD
北大核心
2009年第4期485-490,共6页
Acta Aerodynamica Sinica
基金
国家奥运科技攻关项目(02017)资助
关键词
帆板
动网格
摇帆
UDF
windsurfing
dynamic mesh
pumping
UDF
