用面元法预报船舶螺旋桨的水动力性能

利用基于速度势煌低介面元法预报船舶螺旋浆的不动力性能，文中采用了计算较为简捷的关于扰动速度势的基本积分微分方程，并采用双曲面形状的面元以消除面元间的缝隙，Newton-Raphson迭代过程被用来在浆叶随边满足压力Kutta条件，使浆叶上下表面的压力良好的一致性，在计算面元的影响系数时，应用了Morino导出的解析计算公式，加快了数值计算的速度，为避免数值导中的奇异性，用Yanagizawa方法求得物体表面上的速度分布，最后用本文方法预报了普通浆和大侧斜浆并与实验数据及其它计算结果进行了比较分析。

PREDICTION OF HYDRODYNAMIC PERFORMANCE OF MARINE PROPELLERS BY SURFACE PANEL METHOD

Presents the use of hyperboloidal quadrilateral panels to avoid gap between panels, the calculation of influence coefficients of panels by Morino's analytical formulations to improve numerical calculation speed, the satisfaction of the pressure Kutta condition on the trailing edge of propeller blade by Newton_Raphson iterative procedure,which make the pressure coefficients of the suction and pressure faces of blade are equal on trailing edge and the use of the method developed by Yanagizawa to determine the velocities on propeller surface,and concludes from comparison that the predicted pressure distributions and open water performances of general propellers and highly skewed propellers are in good agreement with experimental data and other calculation results.