波浪作用下粉沙悬沙垂向分布多组分模型研究  

A multi-component model for vertical suspended silt distribution under wave action

作　　者：崔策轩 张庆河 杨光耀 CUI Ce-xuan;ZHANG Qing-he;YANG Guang-yao(State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation,Tianjin 300350,China;China Water Resources Bei Fang Investigation,Design&Research Limited Company,Tianjin 300222,China)

机构地区：[1]水利工程智能建设与运维全国重点实验室,天津300350 [2]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《泥沙研究》2024年第5期34-41,共8页Journal of Sediment Research

基　　金：国家自然科学基金-山东联合基金项目(U1906231)。

摘　　要：基于有限长掺混理论及泥沙层化抑制理论,建立波浪作用下粉沙多组分悬沙分布模型,通过水槽实验研究了山东潍坊港粉沙在规则波和不规则波作用下的垂向悬沙分布规律,并利用建立的模型和实验结果进行了比较。研究结果表明:多组分悬沙模型相对中值粒径代表的单组分模型能更好地反映波浪作用下粉沙悬沙垂向分布;对于不规则波,有效波高和谱峰周期作为参数能够获得最优的悬沙分布模拟结果。Based on the theory of finite-mixing-length theory and sediment stratification effect,A multicomponent suspended sediment concentration distribution model with stratification effect under wave action has been developed.The flume experiment for vertical suspended sediment concentration distribution of the silt sample,collected from beach around Weifang Port in Shandong Province,has also conducted under regular and irregular wave actions.After comparing the simulated and experimental results,it is shown that the multicomponent suspended sediment concentration model can better reflect the actual vertical concentration distribution under wave action compared to the single-component model represented by median particle size,the significant wave height and spectral peak period can be used as parameters to obtain the optimal simulation results of suspended sediment distribution under irregular wave action.

关 键 词：粉沙 多组分 悬沙分布 不规则波 

分 类 号：TV148[水利工程—水力学及河流动力学]