摘要
本文将偶极子面分布法用于水面下一般升力组合体绕流问题的数值计算。对兴波势计算中出现的复指数函数 E_1(z),采用了数值造表的方法,从而在保证精度的前提下,大大提高了计算运行速度。作为主要算例,数值预报了JETFOIL929-115型水翼艇后水翼组合体的水动力性能,得到了组合体升力随Fr 数变化的规律,以及组合体各部件上的压力分布,数值计算结果令人满意。
A numerical method is presented for predicting the pressure distribution and other hydrodynamic characteristics of 3-D arbitrary lifting configura- tion under the linearized water surface condition The value of complex exponential integral in calculation of wave-making potential is given in ta- bular form,which greatly improves the computational speed and gives a high accuracy. As a numerical example,the hydrodynamic characteristics of a aft foil-strut-pod configuration of Jetfoil 929-115 hydrofoil craft was calcul- ated,the numerical results agree well with the experiment data.
出处
《中国造船》
EI
CSCD
北大核心
1993年第1期1-12,共12页
Shipbuilding of China
