螺旋桨设计和基于FLUENT的水动力特性分析

Design of the propeller and the analysis of the hydrodynamic characteristics based on the FLUENT

应用螺旋桨升力线旋涡模型,将连续的升力线离散为等强度的涡元,结合升力线理论和拉格朗日乘子求最小值的数值计算方法,求解了桨叶最佳环量分布,进而得到了叶片剖面厚度及拱度径向分布,根据所得到的几何参数进行了三维建模,并应用FLUENT对螺旋桨水动力性能进行了预报,螺旋桨满足测量装置推进性能要求。

The continuous lift-line discrete was used as constant strength elements of vortex based on the lift-line vortex model, and the best circulation vector distribution teas obtained combing with the lift-line theory and the minimum numerical calculation method of Lagrange minimum value measures, thus the blade profile thickness and camber radial distribution were got. The three-dimensional model of the propeller was established according to the geometric parameters result from above methods. The hydrodynamic performance was forecasted based on FLUENT. The design is suitable for underground cave detector carrier.