We performed laboratory experiments to describe and quantify the transport of sediment and the changes in the bed due to a generic translating monopolar vortex. Experiments were performed inside a water‐filled, square tank with a particle bed on the bottom and a vertical plate attached perpendicular to one of the sidewalls. The tank was placed on top of a rotating table to create the vortex by changing its rotation rate. This change created a current inside the tank that separated at the edge of the vertical plate, with the shear layer rolling up into a vortex. Once the vortex was formed, the table was promptly stopped. Sediment particles are brought into suspension and captured by the vortex, forming a conical region that moves with the vortex until the sediment resettles in the bed, changing the original bed morphology. Three different measurement techniques were used to obtain information about the flow velocities, the sediment in suspension, and the net changes in the bed. Changes in the bed morphology occur along the trajectory of the vortex, where a region of erosion is followed by a region of deposition. The strength of a vortex is the main parameter governing the capture and suspension of particles with similar characteristics. A power law relationship is found between the vortex strength and the net displaced particle volume. Experiments were also performed without sediment to determine if the presence of sediment could affect the vortex dynamics. However, a definitive answer requires more experiments to obtain reliable statistics.

中文翻译：

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平移单极涡旋诱发的泥沙输移和形态动力学

我们进行了实验室实验，以描述和量化由于一般的平移单极涡旋而引起的沉积物迁移和床层变化。实验是在充满水的方形水箱内进行的，水箱的底部装有颗粒床，垂直板垂直于其中一个侧壁安装。将该罐放置在旋转台的顶部，以通过改变其旋转速率产生涡旋。这种变化在储罐内部产生了一个电流，该电流在垂直板的边缘处分开，剪切层卷成漩涡。一旦形成涡流，便立即停止了工作台。沉积物颗粒进入悬浮液并被涡旋捕获，形成一个圆锥形区域，该区域随涡旋移动，直到沉积物在河床中重新定居，从而改变了河床的原始形态。使用三种不同的测量技术来获取有关流速，悬浮液中的沉积物以及床层净变化的信息。床层形态的变化沿涡流轨迹发生，在该区域有一个侵蚀区域，随后是一个沉积区域。涡旋强度是控制具有相似特征的粒子的捕获和悬浮的主要参数。在涡旋强度和净位移颗粒体积之间发现幂律关系。还进行了无沉积物实验以确定沉积物的存在是否会影响涡旋动力学。但是，确定的答案需要更多的实验才能获得可靠的统计数据。床上的网子变了。床层形态的变化沿涡流轨迹发生，在该区域有一个侵蚀区域，随后是一个沉积区域。涡旋强度是控制具有相似特征的粒子的捕获和悬浮的主要参数。在涡旋强度和净位移颗粒体积之间发现幂律关系。还进行了无沉积物实验以确定沉积物的存在是否会影响涡旋动力学。但是，确定的答案需要更多的实验才能获得可靠的统计数据。床上的网子变了。床层形态的变化沿涡流轨迹发生，在该区域有一个侵蚀区域，随后是一个沉积区域。涡旋强度是控制具有相似特征的粒子的捕获和悬浮的主要参数。在涡旋强度和净位移颗粒体积之间发现幂律关系。还进行了无沉积物实验以确定沉积物的存在是否会影响涡旋动力学。但是，确定的答案需要更多的实验才能获得可靠的统计数据。涡旋强度是控制具有相似特征的粒子的捕获和悬浮的主要参数。在涡旋强度和净位移颗粒体积之间发现幂律关系。还进行了无沉积物实验以确定沉积物的存在是否会影响涡旋动力学。但是，确定的答案需要更多的实验才能获得可靠的统计数据。涡旋强度是控制具有相似特征的粒子的捕获和悬浮的主要参数。在涡旋强度和净位移颗粒体积之间发现幂律关系。还进行了无沉积物实验以确定沉积物的存在是否会影响涡旋动力学。但是，确定的答案需要更多的实验才能获得可靠的统计数据。