拖轮螺旋桨尾流对沉管或沉箱浮运的影响  

Influence of Tug′s Propeller Slipstream on Floating Elements or Caissons

作　　者：侯连青 宁进进 

机构地区：[1]中交一航局第二工程有限公司,山东青岛266071

出　　处：《中国港湾建设》2013年第1期5-7,共3页China Harbour Engineering

摘　　要：随着沉管和沉箱体积的大型化,浮运船舶尾流作用不容忽视,但目前国内相关研究较少。根据外文资料中计算螺旋桨射流作用的方法,分析船舶尾流作用范围及其流速变化,并计算其在沉管或沉箱上的尾流作用力,为沉箱、沉管浮运提供计算依据。With the increasingly large scale of immersed elements and caissons, the effects of wake flows of towing vessels cannot be ignored, but relative research is very few in China at present. Based on the calculation method of propeller slip- stream recorded in foreign literatures, the range of influence of wake streams and the velocity of wake streams is analyzed, and the acting force of the propeller slipstream on the immersed elements or caissons is calculated, providing some basis for calculating of floating transportation of caissons and elements.

关 键 词：拖轮螺旋桨尾流 射流 速度场 水流力 浮运 

分 类 号：U661.31[交通运输工程—船舶及航道工程]