预报螺旋桨水动力性能的一种改进的面元法

采用一种改进的面元法预报螺旋桨水动力性能,将桨叶和桨毂表面离散为四边形双曲面元,每个面元上布置等强度的源,拱弧面和尾涡面离散为布置涡的四边形双曲面元。通过控制点的物面条件求取奇点强度,进而得出桨叶压力分布以及螺旋桨敞水性能,与试验结果比较,计算结果令人满意。

Prediction of Hydrodynamic Performance on Propeller by an Improved Surface Panel Method

An improved surface panel method was used to predict the hydrodynamic performance of propeller.The surface of propeller and hub were mashed by a number of small hyperbolic quadrilateral panels with constant source distribution.The camber surface and trailing vortex surface were also represented by a number of small panels with vortex distribution.The strength of the singularities was obtained by boundary conditions at the control points,then the pressure distribution and open water characteristics of propel...