含淹没植物河道水流水力特性的研究

On Hydraulic Characteristics of River Flow with Submerged Vegetation

自然河道当中,水生植物是重要的组成部分,它们的存在改变了河道结构,影响了河道中水流的水力特性,而水生植物中大部分都是生长于水底且不露出水面的淹没植物。结合近年来国内外该领域相关研究成果,从含淹没植物河道水流的阻力特性、流速分布、紊动特性等方面进行总结和分析,比较含柔性植物和刚性植物的水流特性差异,并对该领域未来的研究方向提出展望。

Aquatic plants are an important part in natural rivers. Their existence has changed the structure of the river and affected the hydraulic characteristics of the flow in the river. Most of the aquatic plants are submerged plants which grow on the bottom of the water and do not expose the surface of the water. The resistance characteristics, velocity distribution and turbulence characteristics of river flow with submerged plants are summarized and analyzed, and the differences of flow characteristics between flexible plants and rigid plants are compared, and the future research directions in this field are prospected.