Abstract

Almost as much as the volume increases from dams, reservoir storage volume declines owing to sedimentation. To support the river systems, storage capacity must be preserved. For increased storage volume, proper sediment control is preferred. One of the hydraulic structures that are frequently employed for water availability or effective water utilization is the weir. The hydrodynamics of the river interrupts these constructions while also preserving water. Additionally heaped up is the river-borne sediment. The review study of sediment transportation on various weir types in diverse applications is presented in this work. Water is elevated to a level of operation from the standpoint of the hydraulic structure to distinguish the height between upstream and downstream water levels. An initial summary of weirs and their wide varieties were presented. The most popular varieties of weirs, including labyrinth weirs, piano key weirs, submerged weirs, and other weirs, are evaluated in terms of their virtues and shortcomings. The review study suggests that the weir’s length and height are essential factors in the transportation of silt. The researchers immediately went over the upstream analysis compared to the downstream. The most common types of technical issues that arise in relation to experimental and numerical models include insufficiency of a forecasting system, a minimal conveyance carrying capacity, unspecified flow rate leads, a lack of knowledge regarding water flooding in the lower region.

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