River morphological dynamics are complex phenomena in natural and environmental flows. In particular, the sediment transport around braid mid-channel bars has not gained enough understanding from previous research. The effect of submergence ratio on the turbulence behavior in the proximity of the bar has been investigated in this study. The spatial distribution of turbulent flow in the proximity of bar has been studied by plotting the depth-averaged two-dimensional contours of turbulent kinetic energy. The high value of TKE has been observed in regions just downstream from the bar. It is due to the vortex shedding occurring in that region. The interaction of sweep and ejection events have been analyzed using the parameter Dominance Function obtained from the ratio of occurrence probability of ejection events to the occurrence probability of sweep events. This outcome indicates that the depth averaged parameter Dominance Function has successfully predicted the high scouring region which makes it an ideal parameter for analyzing the scour phenomena in real-world water management projects. The high scouring zone lies in the close proximity of the bar. This shows that the scouring effect from the bar is limited to its close region. The magnitude of scouring occurring at the upstream region of the bar also increases with the increment of submergence ratio. The relationship of quadrant event inclination angles with the sediment transport occurring in the proximity of bar has been also studied, where an Angle Ratio parameter has been utilized for linking the bed elevation change with the inclination angle. The results indicate that the AR parameter has been successfully tested in this study to show its competence to represent the turbulent burst-induced bed sedimentation and scouring.

河流形态动力学是自然和环境流量中的复杂现象。尤其是，辫状河道中游带周围的泥沙运移尚未从先前的研究中获得足够的了解。在这项研究中，已经研究了浸没率对棒附近湍流行为的影响。通过绘制湍流动能的深度平均二维轮廓，研究了棒附近湍流的空间分布。在棒材下游的区域中观察到了较高的TKE值。这是由于在该区域发生涡旋脱落。已使用参数优势函数分析扫掠事件与弹射事件的相互作用，该参数是从弹射事件的发生概率与扫掠事件的发生概率之比中获得的。结果表明，深度平均参数优势函数已成功预测了高冲刷区域，这使其成为分析实际水管理项目中冲刷现象的理想参数。高精练区位于酒吧附近。这表明，来自棒的擦洗效果限于其封闭区域。随着浸入率的增加，在棒的上游区域发生的冲刷量也增加。还研究了象限事件倾斜角与发生在条形附近的泥沙输送之间的关系，其中利用角度比参数将河床仰角变化与倾斜角联系起来。结果表明，AR参数已在本研究中成功测试，以显示其代表湍流爆发诱发的床层沉降和冲刷的能力。