摘要
本文利用非定常数值升力面方法计算了运转于非均匀流场中的螺旋桨性能,该方法建立在作者提出的新的定常螺旋桨尾涡模型的基础上,在用圆锥螺旋面模拟的过渡区尾涡片中,加入了泄出涡以反映非定常特性.数值计算的升力面方法采用离散的涡、源奇点系,并编制了相应的非定常性能计算的计算机程序.最后,对14届ITTC 螺旋桨委员会提供的实例以及其他例子作了比较计算,结果表明,本法是可行的.
Unsteady performances of the propeller operating in the non-uniformwake field are computed by using the unsteady numerical lifting-surface theorybased on the new trailing vortex wake model,which has been successfullyapplied to steady propeller problems.The vortex lattice method is employed.The propeller loading and blade thickness are denoted by vortex and sourceelements respectively.Calculations are carried out for the propeller recomm-ended by the Propeller Committee of 14th ITTC for comparative calculations onunsteady propeller blade forces and for the thrust and torque variation of oneblade of an AU propeller in harmonic wake.The results are compared withother prediction methods.The usefulness of the present method is verified.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1989年第3期47-54,共8页
Journal of Shanghai Jiaotong University
关键词
螺旋桨
升力面
船舶
性能
计算
propeller
unsteady lifting-surface theory
propeller exciting forces
ship propulsion
