Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model

Plain reservoirs are shallow, and have low dams and widespread water surfaces. Therefore, wind-wave-induced damage to the dam is one of the important factors affecting the safety of the reservoir. To improve upon unsatisfactory plain reservoir wave-clipping schemes, a numerical method is proposed to...

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Main Authors: Yan Xiang, Zhi-min Fu, Ying Meng, Kai Zhang, Zheng-fei Cheng
Format: Article
Language:English
Published: Elsevier 2019-09-01
Series:Water Science and Engineering
Online Access:http://www.sciencedirect.com/science/article/pii/S1674237019300766
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author Yan Xiang
Zhi-min Fu
Ying Meng
Kai Zhang
Zheng-fei Cheng
author_facet Yan Xiang
Zhi-min Fu
Ying Meng
Kai Zhang
Zheng-fei Cheng
author_sort Yan Xiang
collection DOAJ
description Plain reservoirs are shallow, and have low dams and widespread water surfaces. Therefore, wind-wave-induced damage to the dam is one of the important factors affecting the safety of the reservoir. To improve upon unsatisfactory plain reservoir wave-clipping schemes, a numerical method is proposed to predict and analyze waves in the reservoir in the presence of artificial islands, constructed from dredged sediment. The MIKE21 SW model is applied to a specific plain reservoir for finding the optimal artificial island parameters. The simulated wave height attenuation results are seen to agree well with empirically predicted values. Thus, the validity and reliability of the numerical model are established. Artificial islands at suitable locations in the reservoir can attenuate the wave heights by approximately 10%–30%, which justifies the efficacy of the clipping scheme making use of dredging and island construction. Keywords: Plain reservoirs, Sediment deposition, Clipping via island construction, MIKE21 SW, Numerical simulation
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spelling doaj.art-a72be9da0ef941b28f32670cc73058172022-12-22T00:17:00ZengElsevierWater Science and Engineering1674-23702019-09-01123179187Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW modelYan Xiang0Zhi-min Fu1Ying Meng2Kai Zhang3Zheng-fei Cheng4Dam Safety Management Center of Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing 210029, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China; Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam, Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing 210029, China; Corresponding author.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, ChinaDam Safety Management Center of Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing 210029, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaDam Safety Management Center of Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing 210029, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China; Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam, Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaDam Safety Management Center of Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaPlain reservoirs are shallow, and have low dams and widespread water surfaces. Therefore, wind-wave-induced damage to the dam is one of the important factors affecting the safety of the reservoir. To improve upon unsatisfactory plain reservoir wave-clipping schemes, a numerical method is proposed to predict and analyze waves in the reservoir in the presence of artificial islands, constructed from dredged sediment. The MIKE21 SW model is applied to a specific plain reservoir for finding the optimal artificial island parameters. The simulated wave height attenuation results are seen to agree well with empirically predicted values. Thus, the validity and reliability of the numerical model are established. Artificial islands at suitable locations in the reservoir can attenuate the wave heights by approximately 10%–30%, which justifies the efficacy of the clipping scheme making use of dredging and island construction. Keywords: Plain reservoirs, Sediment deposition, Clipping via island construction, MIKE21 SW, Numerical simulationhttp://www.sciencedirect.com/science/article/pii/S1674237019300766
spellingShingle Yan Xiang
Zhi-min Fu
Ying Meng
Kai Zhang
Zheng-fei Cheng
Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model
Water Science and Engineering
title Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model
title_full Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model
title_fullStr Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model
title_full_unstemmed Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model
title_short Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model
title_sort analysis of wave clipping effects of plain reservoir artificial islands based on mike21 sw model
url http://www.sciencedirect.com/science/article/pii/S1674237019300766
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AT yingmeng analysisofwaveclippingeffectsofplainreservoirartificialislandsbasedonmike21swmodel
AT kaizhang analysisofwaveclippingeffectsofplainreservoirartificialislandsbasedonmike21swmodel
AT zhengfeicheng analysisofwaveclippingeffectsofplainreservoirartificialislandsbasedonmike21swmodel