摘要
本文提供了一种应用升力面理论和面元法偶合的导管螺旋桨理论设计方法。螺旋桨作为逆问题用升力面理论处理,导管作为正问题用基于速度势的面元法计算。方法的特点是通过迭代考虑桨和导管的相互影响,并自动进行导管和桨的推力分配。导管的面元计算采用两种方案进行偶合:(1)在桨升力面设计过程中每一步偶合;(2)升力面设计结束后偶合。算例表明,两种方案均能给出收敛、一致的结果。
This paper presents a theoretical design method of ducted propeller,in which a vortex lattice method is employed for the propeller design and calculation of interaction velocities on the duct due to propeller and a poˉtential based panel method is applied for the duct performance prediction and calculation of interaction velocities on the propeller due to duct with known duct profile.The hydrodynamic interaction between the propeller and the duct is treated in an iterative manner and thrust allocation of the propeller and duct is determined simultaneously.Two coupled schemes for panel method are adopted:(1)coupled at each step of propeller design process;(2)coupled after the whole design process of propeller.The design examples show that both can get the converged and conˉsistent results.
出处
《船舶力学》
EI
2003年第4期21-27,共7页
Journal of Ship Mechanics
关键词
导管螺旋桨
升力面
面元法偶合
设计方法
船舶
ducted propeller
lifting surface theory
panel method
coupled design
