数值模拟放置附属圆柱的主圆柱绕流  

Numerical Simulation of Flow Past a Main Cylinder with an Affiliated Cylinder

作　　者：谭玲燕[1] 

机构地区：[1]吉林大学数学学院,长春130012

出　　处：《吉林大学学报（理学版）》2012年第1期69-72,共4页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:10972089);吉林大学研究生创新项目基金(批准号:20101054)

摘　　要：利用格子Boltzmann方法,对主圆柱尾流区域内放置附属圆柱的绕流进行数值模拟.结果表明:放置单个附属圆柱时,主圆柱所受阻力减小,阻力系数发生周期性改变;放置两个附属圆柱的减阻效果更好.The flow around a main cylinder affiliated by cylinders in the near wake of the main cylinder was simulated by means of lattice Boltzmann method.It was found that the drag coefficient of the main cylinder with a single affiliated cylinder was decreased.The variant drag coefficient changed periodically.The drag coefficient of the main cylinder is further decreased if two affiliated cylinders were placed near the wake of the main cylinder.

关 键 词：格子BOLTZMANN方法 附属圆柱 圆柱绕流 

分 类 号：O357.1[理学—流体力学]