摘要
建立了计算导管螺旋桨在均流中的定常水动力性能的数值方法，螺旋桨用涡格法、导管用面元法分别计算，两者的相互影响则通过迭代计算加以考虑．为了减少计算量，螺旋桨对导管的诱导速度采用周向平均值，从而使导管周围的非定常流动简化为定常轴对称流动．应用本法对ＪＤ简易导管桨系列进行了计算，数值结果与试验数据吻合良好．
A numerical method is presented for predicting the steady performance of ducted propellers operating in a uniform flow. The propeller is calculated with a vortex lattice method and the duct with a surface panel method, while the hydrodynamic interaction between them is treated in an iterative manner. To reduce the amount of computation, the velocities induced by the propeller are circumfe rentially averaged, so that the physically periodical flow around the duct is simplified as a steady, axisymmetrical flow.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1997年第11期36-39,共4页
Journal of Shanghai Jiaotong University
关键词
船舶推进
螺旋桨
长力面理论
导管螺旋桨
ship propulsion
propellers
lifting surface theory
panel method
ducted propeller
