基于动网格技术帆板摇帆空气动力特性分析  

The aerodynamic performance analyses of windsurfing pumping based on dynamic mesh

作　　者：王树杰[1] 赵龙武[1] 李冬[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100

出　　处：《空气动力学学报》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

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.

关 键 词：帆板 动网格 摇帆 UDF 

分 类 号：O35[理学—流体力学]