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DOI	10.5194/hess-23-1567-2019
	Technical note: Laboratory modelling of urban flooding: Strengths and challenges of distorted scale models
	Li X.; Erpicum S.; Bruwier M.; Mignot E.; Finaud-Guyot P.; Archambeau P.; Pirotton M.; Dewals B.
发表日期	2019
ISSN	1027-5606
起始页码	1567
结束页码	1580
卷号	23 期号:3
英文摘要	Laboratory experiments are a viable approach for improving process understanding and generating data for the validation of computational models. However, laboratory-scale models of urban flooding in street networks are often distorted, i.e. different scale factors are used in the horizontal and vertical directions. This may result in artefacts when transposing the laboratory observations to the prototype scale (e.g. alteration of secondary currents or of the relative importance of frictional resistance). The magnitude of such artefacts was not studied in the past for the specific case of urban flooding. Here, we present a preliminary assessment of these artefacts based on the reanalysis of two recent experimental datasets related to flooding of a group of buildings and of an entire urban district, respectively. The results reveal that, in the tested configurations, the influence of model distortion on the upscaled values of water depths and discharges are both of the order of 10%. This research contributes to the advancement of our knowledge of small-scale physical processes involved in urban flooding, which are either explicitly modelled or parametrized in urban hydrology models. © 2019 The Author(s).
语种	英语
scopus关键词	Friction; Laboratories; Computational model; Frictional resistance; Laboratory experiments; Laboratory modelling; Preliminary assessment; Process understanding; Secondary currents; Vertical direction; Floods; data set; flooding; hydrological modeling; laboratory method
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159723
作者单位	Li, X., Hydraulics in Environmental and Civil Engineering (HECE), University of Liège (ULiège), Liège, 4000, Belgium; Erpicum, S., Hydraulics in Environmental and Civil Engineering (HECE), University of Liège (ULiège), Liège, 4000, Belgium; Bruwier, M., Hydraulics in Environmental and Civil Engineering (HECE), University of Liège (ULiège), Liège, 4000, Belgium; Mignot, E., LMFA, CNRS-Université de Lyon, INSA de Lyon, Lyon, 69100, France; Finaud-Guyot, P., ICube Laboratory (UMR 7357), Fluid Mechanics Team, ENGEES, Strasbourg, 67084, France; Archambeau, P., Hydraulics in Environmental and Civil Engineering (HECE), University of Liège (ULiège), Liège, 4000, Belgium; Pirotton, M., Hydraulics in Environmental and Civil Engineering (HECE), University of Liège (ULiège), Liège, 4000, Belgium; Dewals, B., Hydraulics in Environmental and Civil Engineering (HECE), University of Liège (ULiège), Liège, 4000, Belgium
推荐引用方式 GB/T 7714	Li X.,Erpicum S.,Bruwier M.,et al. Technical note: Laboratory modelling of urban flooding: Strengths and challenges of distorted scale models[J],2019,23(3).
APA	Li X..,Erpicum S..,Bruwier M..,Mignot E..,Finaud-Guyot P..,...&Dewals B..(2019).Technical note: Laboratory modelling of urban flooding: Strengths and challenges of distorted scale models.Hydrology and Earth System Sciences,23(3).
MLA	Li X.,et al."Technical note: Laboratory modelling of urban flooding: Strengths and challenges of distorted scale models".Hydrology and Earth System Sciences 23.3(2019).