摘要
研究船舶螺旋桨后尾流速度场对于利用桨后节能装置回收螺旋桨后尾流中的旋转动能及研究桨、舵、附体之间的干扰有重要意义.本文采用准非线性螺旋桨升力线理论方法计算了螺旋桨后尾流场的轴向、切向和径向诱导速度,给出了内、外场诱导速度的计算公式及一个MAU系列四叶桨后诱导速度的计算结果,所得结果与日本用激光测速仪测得的结果相吻合.
It is important to investigate the velocity field of wakes behind the ship propeller in order to retrieve rotatory kinetic energy in the wakes using energy-saving devices and research the interaction among the prop-eller, the rudder and the appendix.The axial, tangential and radial ind-uced velocities are computed employing the quasi-nonlinear lifting line method.The formulas for the induced velocities in the inner and outer fields are presented.The calculation results of the induced velocities for four blades MAU series fairly fit the measurements obtained in Japan by means of Laser Doppler Velocimenter.
关键词
螺旋桨
尾流
速度场
船舶
理论计算
ship's propellers
velocity field of wakes
theoretical calculation
