泥沙研究2023，Vol.48Issue(6)：59-66,8.DOI:10.16239/j.cnki.0468-155x.2023.06.009
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
摘要
Abstract
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Key words
duct propeller/propeller/scouring experiment分类
交通工程引用本文复制引用
岳仰昆,张嶔,杨博,梁丙臣..螺旋桨和导管桨尾流冲刷的试验研究[J].泥沙研究,2023,48(6):59-66,8.基金项目
国家自然科学基金项目(51979260) （51979260）
