【作者】 常欣； 黄胜； 贡毅敏；

【Author】 Chang Xin Huang Sheng Gong Yi-min (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001)

【机构】 哈尔滨工程大学船舶工程学院；

【摘要】 研究了全方向推进器水动力性能的面元预报方法,基于螺旋桨面元法建立了全方向推进器的水动力性能计算的数学模型,对全方向推进器的水动力性能进行了数值预报。采用了关于扰动速度势的基本积分微分方程、并采用双曲面元以消除面元间的缝隙。用Newton-Raphson迭代过程在桨叶随边满足压力Kutta条件。在计算面元的影响系数时,应用Morino导出的解析计算公式加快了数值计算的速度。为避免数值求导中的奇异性,用Yanagizawa方法求得物体表面上的速度分布。计算结果与日本水池模型试验结果、升力线方法结果及升力面方法计算结果进行了对比,计算值与试验值吻合良好。更多还原

【Abstract】 Presents the method for predicting the hydrodynamic characteristics of variable vector propeller by panel method, the mathematical models for evaluation based on panel method and the prediction of hydrodynamic characteristics numerically, the use of hyperboloidal quadrilateral panels to avoid gap between panels, the satisfaction of the pressure Kutta condition on the trailing edge of propeller blade by Newton-Raphson iterative procedure, the calculation of influence coefficients of panels by Morino’s analytical formulations to improve numerical calculation speed and the use of the method developed by Yanagizawa to determine the velocities on propeller surface and makes comparisons among the experimental data by Naotica NANBA、the results of the evaluation based on lifting-line theory、the evaluation based on lifting-surface theory and the results with the presented method in this paper, which show satisfactory agreement between the first and the last.更多还原