【作者】 常晟铭； 丁恩宝； 王超；

【Author】 CHANG Sheng-ming;DING En-bao;WANG Chao;College of Shipbuilding Engineering,Harbin Engineering University;Shanghai Branch of China Ship Scientific Research Center;

【机构】 哈尔滨工程大学船舶工程学院； 中国船舶第702研究所上海分部；

【摘要】 本文对二维形式的半浸桨切面高速入水过程进行了研究,选取了无因次半径为0.8处的半浸桨杯形切面利用CFD方法进行计算,半浸桨的运动通过重叠网格的方法实现,模拟的结果体现了位于半浸桨吸力面的空气腔以及自由面的变形随其进速系数的变化。最终结果表明,随着进速系数的增加,半浸桨二维杯形切面的通气形式会从完全通气转变为部分通气的状态,而位于吸力面的空气腔也会向其随边的方向发生收缩,进而使其水平方向和垂直方向的力系数有所降低。更多还原

【Abstract】 In this paper,the two-dimensional cup section of surface piercing propeller(SPP) in the form of high-speed water entry is studied,select no dimensional radius of 0.8 in SPP cup section,using the CFD method to compute SPP movement by overlapping grid method,the simulation results show its air cavity on the suction surface and free surface deformation along with the change of the advance coefficient.The final results show that,with the increase of the advance velocity coefficient,the ventilation form of the 2-D cup section of SPP will change from complete ventilation to partial ventilation,and the air cavity located on the suction surface will shrink in the direction of trailing edge,thereby reducing the horizontal and vertical force coefficients.更多还原