Turbulence in Sediment-Laden Flows Over Wavy Beds

LDV测量正在进行中的泥沙流动超过底部 模拟河床形态的几何形状。 沉积流是巨大的 泥沙和洪水控制的重要性，但测量困难 迄今为止还不能清楚地描绘出湍流是如何 高泥沙负荷改变了这些特性。 这些 测量将提供急需的平均和湍流数据 真实模拟流中的速度。 实验将 重点是非平衡泥沙浓度，这排除了 一张稳定的床。

LDV measurements are underway for sediment-laden flows over bottom geometries simulating stream bed forms. Sedimenting flows are of great importance in sediment and flood control, yet measurement difficulties so far have not permitted a clear picture of how turbulent flow characteristics are modified by high sediment loads. These measurements will provide crucially needed data on mean and turbulent velocities in realistically simulated flows. The experiments will focus on non-equilibrium sediment concentrations, which preclude the existence of a stable bed.