海岸破波带内悬沙空间分布试验研究和解析表达式  

Experimental study and analytic expressions for spatial distribution of suspended sediment concentration in surf zone

作　　者：张洋[1] 邹志利[1] 孙大鹏[1] 薛武山 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《海洋工程》2018年第1期37-46,共10页The Ocean Engineering

基　　金：国家自然科学基金项目(51079024);国家创新群体基金项目(51221961)

摘　　要：关于海岸破波带内悬沙浓度水平和垂向分布的研究对于计算海岸输沙率和地形演变具有重要意义。本研究进行了规则波、波群和不规则波三种波浪情况破波带内悬沙浓度的水平和垂向分布的试验测量。试验在大尺度波浪水槽进行,接近实际海岸波况尺度。给出了破波带内多断面悬沙垂向分布的细致测量结果,并以此为基础给出了预报实际海岸破波带内悬沙浓度水平和垂向分布解析表达式,讨论了形成这些分布的物理原因和不同波况、不同破波带区域对分布的影响。The research on horizontal and vertical distributions of suspended sediment concentration in the surf zone of coastal beach is important for calculating sand transport rates and beach evolution. A series of experiments were conducted by the present study team in a large scale wave flume,giving the results corresponding nearly to prototype conditions,for three wave types of regular wave,wave group and irregular wave to measure the spatial distributions of suspended sediment concentration in the surf zone. Detailed experimental data of suspended sediment concentration are obtained, and analytic expressions for horizontal and vertical distributions of suspended sediment concentration in the surf zone are presented. The effects of different wave types and different regions in the surf zone are discussed.

关 键 词：沙坝 波浪形态 悬沙浓度 破波带 载沙量 

分 类 号：TV149.2[水利工程—水力学及河流动力学]