"The Dynamics of Flow Over Ripples and Dunes"

“涟漪和沙丘上的流动动力学”

• 批准号: 8911359
• 负责人: Stephen McLean
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-09-15 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911359&HistoricalAwards=false
• 关键词: Dynamics; Flow; Over; Ripples; Dunes

This research deals with the dynamics of ripples and dunes on the surface of a movable bed beneath water flow of finite depth. Theoretical modeling and experiments in a hydraulic flume will be used to advance the understanding of the interaction between flow and bed surface configuration. Both two-dimensional and three- dimensional configurations will be investigated. Results are expected to advance the reliability and accuracy of methods for predicting erosion, sediment transport, and bottom topography of rivers and channels.

本文研究有限水深水流作用下动床表面上的沙纹和沙丘的动力学。在水力水槽中的理论模型和实验将被用来推进流动和床面配置之间的相互作用的理解。将研究二维和三维构型。研究结果可望提高预测侵蚀、泥沙输移和河床地貌方法的可靠性和准确性。