螺旋桨和导管桨尾流冲刷的试验研究  

Experimental study on scouring by propeller and ducted propeller

作　　者：岳仰昆 张嶔[1] 杨博 梁丙臣[1,2] YUE Yang-kun;ZHANG Qin;YANG Bo;LIANG Bing-chen(College of Engineering,Ocean University of China,Qingdao 266100,China;Shandong Provincial Key Laboratory of Ocean Engineering,Qingdao 266100,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]山东省海洋工程重点实验室,山东青岛266100

出　　处：《泥沙研究》2023年第6期59-66,共8页Journal of Sediment Research

基　　金：国家自然科学基金项目(51979260)。

摘　　要：通过对400 rpm、500 rpm和600 rpm三种不同转速条件下导管桨及螺旋桨的尾流冲刷开展试验研究,对冲刷后的沙坑进行测量,构建各时刻高程点阵获得沙坑几何形状。经过对比分析发现:随着冲刷的发展,冲刷坑慢慢趋于稳定,稳定后的冲刷坑并不沿轴线对称,其最大冲刷深度和最大沉积丘高度分别位于轴线的两侧。随着转速的增加,冲刷愈发剧烈,形成更深和更长的尾流冲坑,形成更高的沉积丘。在相同转速条件下,导管桨的冲刷坑比螺旋桨的冲刷坑更长、更窄和更浅。The scouring experiments by duct propeller and propeller under different rotating speeds of 400 rpm,500 rpm and 600 rpm were carried out.After measuring the variation of bed elevation,the geometry of scouring poles and sedimentary mounds at different scouring time were obtained by constructing elevation lattice.After comparative analysis,it is found that the scour holes will gradually tend to stable with the processes of scouring,and the stabilized poles are not symmetrical along the axis.The maximum scour depth and maximum sedimentary height are located on both sides of the axis.With the increase of rotational speed,the scouring will be more intense,forming deeper and longer scouring holes and higher sedimentary mounds.At the same speed,the scour hole by duct propeller is longer,narrower and shallower than that by the propeller.

关 键 词：导管桨 螺旋桨 冲刷试验 

分 类 号：U616[交通运输工程—船舶及航道工程]