Peng, Yong, Zhang, Jianming, Xu, Weilin and Rubinato, Matteo (2018). Experimental optimization of gate opening modes to minimize near-field vibration induced by releasing flood with hydraulic experiments. Water, 10 ,
Abstract
Multi-Horizontal-Submerged Jets are successfully applied to dissipate energy within a large-scale hydropower station. However, notable near-field vibrations are generated when releasing high discharges through the gates, which is generally typical in a flooding case scenario. Under these conditions, the magnitude of the vibrations varies when applying different gate-opening modes. To investigate and find optimized gate-opening modes to reduce the near-field vibration, multiple combinations were tested by varying gate-opening modes and hydraulic conditions. For each of the tests conducted, fluctuating pressures acting on side-walls and bottoms of a stilling basin were measured. The collected datasets were used to determine the maximum and minimum fluctuating pressure values associated with the correspondent gate-opening mode and a detailed comparison between each of the gate-opening modes was completed. The paper presents the quantitative analysis of the discharge ratio’s effect on fluctuating pressures. It also investigates the influence of different gate-opening modes by including side to middle spillways and upper to lower spillways configurations. The flow pattern evolutions triggered by each different gate-opening mode are discussed and optimal configurations that minimize near-field vibrations at high discharges are recommended to support both the design of new systems and assessment of the performance of existing ones.
Publication DOI: | https://doi.org/10.3390/w10101435 |
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Divisions: | College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Civil Engineering |
Additional Information: | Copyright © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Uncontrolled Keywords: | multi-horizontal submerged jets,energy dissipation,near-field vibration,fluctuating pressure,gate-opening modes,SDG 9 - Industry, Innovation, and Infrastructure,SDG 11 - Sustainable Cities and Communities,SDG 13 - Climate Action |
Publication ISSN: | 2073-4441 |
Last Modified: | 26 Mar 2025 08:12 |
Date Deposited: | 14 Jan 2025 12:41 |
Full Text Link: | |
Related URLs: |
https://www.mdp ... 4441/10/10/1435
(Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2018-10 |
Published Online Date: | 2018-10-12 |
Accepted Date: | 2018-10-10 |
Authors: |
Peng, Yong
Zhang, Jianming Xu, Weilin Rubinato, Matteo ( ![]() |