Scholarlink

<p>This research focuses on enhancing the efficiency of a modified vertical sluice gate featuring a stepped-edge configuration. A combination of laboratory flume experiments and three-dimensional FLOW-3D simulations was used to evaluate the gate’s performance under different flow regimes. The laboratory tests were carried out in a flume for two gate configurations: a regular gate and the innovative stepped-edge gate. The results show that the stepped-edge gate improves flow contraction and reduces energy losses, leading to a significantly higher discharge coefficient compared to the other configurations. Numerical simulations using FLOW-3D validated the experimental findings and provided insight into the flow field and streamlines beneath the gate. In addition, this investigation involved the formulation of two new empirical equations aimed at predicting discharge for both free and submerged flow regimes. Comparative evaluation against extant models, including those by Ferro et al. (2019) and established models pertinent to cylindrical and semi-cylindrical gates, unequivocally demonstrates the superior hydraulic efficiency characteristic of the gate design advanced herein. This improvement is particularly evident under submerged flow, where the stepped-edge gate achieves higher submergence ratios for the same discharge. The evidence suggests that implementing a stepped-edge configuration offers a viable and proficient strategy for elevating the hydraulic performance of sluice gates, crucial components within sophisticated irrigation and water resource management systems. The experimental data clearly indicate that the implementation of a stepped-edge sluice gate substantially enhances discharge capabilities. Under free-flow conditions, a notable increase in discharge, ranging from approximately 25 to 27%, was observed relative to a regular gate, with the precise improvement being contingent upon the upstream water level. Furthermore, a consistent 25% augmentation in discharge was recorded when the gate operated under submerged flow regimes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study of an innovative stepped-edge gate to increase discharge coefficient using experimental and numerical methods

  • 期刊论文

  • 发表日期：

    2025年9月6日

查看全文
  • Mehrdad Asadi,
  • Mohammad Javad Monem,
  • Jamal Mohammad Vali Samani

摘要

This research focuses on enhancing the efficiency of a modified vertical sluice gate featuring a stepped-edge configuration. A combination of laboratory flume experiments and three-dimensional FLOW-3D simulations was used to evaluate the gate’s performance under different flow regimes. The laboratory tests were carried out in a flume for two gate configurations: a regular gate and the innovative stepped-edge gate. The results show that the stepped-edge gate improves flow contraction and reduces energy losses, leading to a significantly higher discharge coefficient compared to the other configurations. Numerical simulations using FLOW-3D validated the experimental findings and provided insight into the flow field and streamlines beneath the gate. In addition, this investigation involved the formulation of two new empirical equations aimed at predicting discharge for both free and submerged flow regimes. Comparative evaluation against extant models, including those by Ferro et al. (2019) and established models pertinent to cylindrical and semi-cylindrical gates, unequivocally demonstrates the superior hydraulic efficiency characteristic of the gate design advanced herein. This improvement is particularly evident under submerged flow, where the stepped-edge gate achieves higher submergence ratios for the same discharge. The evidence suggests that implementing a stepped-edge configuration offers a viable and proficient strategy for elevating the hydraulic performance of sluice gates, crucial components within sophisticated irrigation and water resource management systems. The experimental data clearly indicate that the implementation of a stepped-edge sluice gate substantially enhances discharge capabilities. Under free-flow conditions, a notable increase in discharge, ranging from approximately 25 to 27%, was observed relative to a regular gate, with the precise improvement being contingent upon the upstream water level. Furthermore, a consistent 25% augmentation in discharge was recorded when the gate operated under submerged flow regimes.