水利学报Issue(7)：783-791,9.DOI:10.13243/j.cnki.slxb.20140960
波流作用的近岸圆柱局部床面侵蚀
Solitary wave scour around a cylinder in shoaling conditions
摘要
Abstract
Solitary wave attack causes substantial erosion and significant local scour around cylindrical struc⁃tures in nearshore shallow water conditions. The transient wave scour around a coastal cylinder on noncohe⁃sive sediment seabed was investigated by three-dimensional numerical method. Three kinds of influential fac⁃tors on wave flow scour were identified. In addition,the maximum scour depths in different coastal topogra⁃phy conditions were analyzed. The results show that either modified Ursell (Urp) number or Keulegan-Car⁃penter (KC) number, representing the ratio of wave characteristic and cylinder scale, governs the maxi⁃mum scour depth. Furthermore, the dependent relationship between these two numbers was also obtained. In live-bed conditions, the Shields parameter of sediment still contributes to the local scour of the cylin⁃der. The offshore seabed slope and embankment wall have effects on wave breaking and wave reflection re⁃spectively,which therefore influence the scour depth.关键词
冲刷/圆柱/孤立波/近岸带/波破碎Key words
scour/bridge piers/solitary wave/nearshore area/wave breaking分类
建筑与水利引用本文复制引用
齐梅兰,李金钊,郐艳荣..波流作用的近岸圆柱局部床面侵蚀[J].水利学报,2015,(7):783-791,9.基金项目
国家自然科学基金资助项目（51078021，50778018）；高等学校博士学科点专项科研基金资助项（20100009110016）；中央高校基本科研业务费项目 （）
