Three-Dimensional flow Structure and the Fluvial Dynamics of Stream Confluences

伊利诺伊大学厄巴纳-香槟分校这项研究的目的是研究汇流的三维结构、导致这种结构的机制以及三维流动与汇流形态之间的联系。具体目标是确定流体运动的三维模式和促成这种模式的因素，检查不同尺度之间的相互作用，并将连贯的三维流体运动与泥沙流动和侵蚀模式联系起来。这将通过使用Sontek声学多普勒测速仪来实现。从测量计划获得的数据将使用一种创新的稳健统计程序进行分析，该程序将从混合总体中提取样本数据，并将其划分为组成部分总体。研究结果将通过在伊利诺伊大学国家超级计算应用中心使用最先进的可视化软件开发汇流动力学的动态可视化模型来综合。

University of Illinois, Urbana-Champaign The objective of this investigation is to focus upon the three dimensional structure of flow at confluences, the mechanisms responsible for this structure, and the connection between three-dimensional flow and confluence morphology. Specific objectives are to identify 3-D patterns of fluid motion and factors that contribute to this, examine the interaction among various scales, and link coherent 3-D fluid motion to sediment flow and patterns of erosion. This will be accomplished through the use of a Sontek acoustic doppler velocimeter. Data obtained from the measurement program will be analyzed using an innovative robust statistical procedure that partitions sample data drawn from a mixed population into component populations. Results of the research will be synthesized by developing dynamic visualization models of confluence dynamics using state of the art visualization software at the National Center for Supercomputing Applications at the University of Illinois.