Cross-Shore Sand Transport on Beaches

海滩上的跨岸沙运

• 批准号: 9901471
• 负责人: Nobuhisa Kobayashi
• 金额: $ 20.77万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9901471&HistoricalAwards=false
• 关键词: Cross; Shore; Sand; Transport; Beaches

This project will use laboratory and numerical modelling to develop a sediment transport model that can predict both onshore and offshore transport of sand on beaches. No existing model can explain post-storm recovery of beaches and therefore it is not possible to predict the long-term cycle of beach erosion and recovery resulting from storms. A wave tank will be used to simulate the effects of irregular waves upon equilibrium beaches, and beadload transport will be estimated from the equilibrium vales. A second set of experiments will then assess effects under non-equilibrium conditions, to evaluate performance of the model.

该项目将利用实验室和数值模拟来开发一个沉积物传输模型，该模型可以预测海滩上的沙子在陆上和近海的传输。现有的任何模型都不能解释风暴后海滩的恢复，因此不可能预测风暴造成的海滩侵蚀和恢复的长期周期。波浪水槽将被用来模拟不规则波对平衡海滩的影响，并将根据平衡值来估算负荷输送。然后，第二组实验将评估非平衡条件下的影响，以评估模型的性能。