院报 ›› 2015, Vol. 32 ›› Issue (5): 66-71.DOI: 10.3969/j.issn.1001-5485.2015.05.013

• 水力学 • 上一篇    下一篇

潜没式治河建筑物水流特性研究综述

葛瑶1,2,陈长英1,2   

  1. 1.河海大学 水利水电学院,南京 210098;
    2.南京水利科学研究院,南京 210029
  • 收稿日期:2014-09-12 出版日期:2015-05-01 发布日期:2015-05-14
  • 作者简介:葛 瑶(1989-),男,陕西安康人,硕士研究生 ,从事水力学及河流动力学研究,(电话)15996310895

Research Advances in Flow Characteristics Near SubmergedRiver Regulation Structures

GE Yao1,2, CHEN Chang-ying1,2   

  1. 1.Hydraulics and Hydropower Institute, Hohai University, Nanjing 210098, China;
    2.Nanjing Hydraulic Research Institute, Nanjing 210029, China
  • Received:2014-09-12 Online:2015-05-01 Published:2015-05-14

摘要: 针对潜没式治河建筑物(潜坝、潜没导板、潜没圆柱体、护滩带等)附近的复杂水流形态,结合国内外的研究成果,对其影响下的流速分布、剪应力分布、涡流结构、紊动动能、比尺效应、分离区、糙率和潜没度等进行了综述,讨论了其冲刷、壅水等机理。相关研究结果表明:潜没建筑物对水流的扰动程度决定了其水流特性,其诱导的漩涡及回流对水流结构产生巨大影响,增大了局部河床阻力,使得综合糙率重新分布。进而指出现有研究成果及其不足之处,并结合已有成果提出展望,为后续的工程及研究工作提供参考。

关键词: 潜没式治河建筑物 , 潜坝 , 水流特性, 冲刷, 壅水

Abstract: On the basis of research achievements in China and abroad, we made a review on the complex flow characteristics (flow velocity, shear stress distribution, eddy flow structure, turbulent kinetic energy, scale effect, separation zone, roughness coefficient and immersion ratio) near submerged river improvement structures (submerged groyne(dikes), vanes, cylindrical and beach-protection belt). We also discussed the mechanism of scouring and backwater effects. Research results indicate that the flow characteristics are determined by the disturbance of these submerged structures to flow. The induced eddy flow and backwater greatly affect the flow structure, increase local bed resistance, and redistribute the comprehensive roughness coefficient. Finally we present the shortcomings of the achievements and put forward prospects to future research.

Key words: submerged river regulation structures, submerged dike, flow characteristics, scour, backwater effect

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