长江口全沙物模研究基础及展望  

Foundation and prospect of complete sediment model for the Yangtze estuary

作　　者：张俊勇 陈立[2] 吴华林 许文盛[2] 

机构地区：[1]上海河口海岸交通行业重点实验室,上海201201 [2]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水利水运工程学报》2009年第2期26-32,共7页Hydro-Science and Engineering

基　　金：交通部西部交通科技项目(200632800075);交通部科技项目(航道规划关键技术研究)

摘　　要：针对长江口治理实践对全沙物模的迫切需要,从模型理论、模拟技术发展以及长江口泥沙运动规律认识三个方面对现有研究成果进行分析和评述.分析并讨论了全沙模型在长江口运用中待解决的关键问题,如冲淤时间比尺的选择、模型变率的影响和模型沙的选择等,并对现阶段建立长江口全沙模型的可能性进行了分析和探讨,认为除模拟技术外,建立长江口全沙模型的关键是不同区域水流泥沙运动规律的正确认识与模拟.区域泥沙运动规律的认识和描述正确与否,将直接影响到全沙模型的模拟精度.Based on the need of a complete sediment model for the regulation of the Yangtze-River estuary, three aspects of the model are analyzed in this paper, including model theory, model technology and law of sediment movement. Key problems in performing the complete sediment model of the Yangtze-River estuary are put forward, including time scale, distortation rate and selection of model sand. Finally, the possibility of the model is demonstrated. Besides the model technology, the key problem in the model is the proper understanding and modeling of field sediment movement, which decides the precision and success of the model.

关 键 词：全沙模型 长江口 推移质 悬移质 

分 类 号：TV148[水利工程—水力学及河流动力学]