Predicting the bulk average velocity of open-channel flow with submerged rigid vegetation

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@Article{SHI:2019:jhydrol,

• author = "Haoran Shi and Xuerong Liang and Wenxin Huai and Yufei Wang",
• title = "Predicting the bulk average velocity of open-channel flow with submerged rigid vegetation",
• journal = "Journal of Hydrology",
• volume = "572",
• pages = "213--225",
• year = "2019",
• ISSN = "0022-1694",
• DOI = "doi:10.1016/j.jhydrol.2019.02.045",
• URL = "http://www.sciencedirect.com/science/article/pii/S0022169419302021",
• keywords = "genetic algorithms, genetic programming, Open channel flow, Submerged vegetation, Cross-sectional mean velocity, Two-layer approach",
• abstract = "Predicting the bulk cross-sectional average flow velocity in open channels with submerged vegetation is an important topic in river engineering. Researchers have proposed numerous theoretical and empirical formulae, but the accuracy and physical basis of their solutions still need improvement. This study separates the flow into vegetation layer and surface layer, following conventional two-layer approach, and estimates the average velocities in these two layers separately. In the vegetation layer, force balance equation provides the basement of the estimation. And in the surface layer, we use genetic programming (GP), a data-driven method. A Darcy-Weisbach-coefficient-like parameter is proposed for the surface layer, which is related to other parameters through the GP algorithm. The maximum dissimilarity algorithm (a data-clustering algorithm) is used to separate the existing data sets in the training, validation, and testing groups to feed GP algorithm. Finally, by weighted combination, a new velocity formula with high accuracy and physical basis is proposed for submerged vegetated flow",

}

Genetic Programming entries for Haoran Shi Xuerong Liang Wen-Xin Huai Yu-Fei Wang

Citations