Steady Flow Measurements in Circular Gated Culverts
2022
Cantero-Chinchilla, Francisco | Belaud, Gilles | Castro-Orgaz, Oscar | Mateos, Luciano | Universidad de Córdoba = University of Córdoba [Córdoba] | Gestion de l'Eau, Acteurs, Usages (UMR G-EAU) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Bureau de Recherches Géologiques et Minières (BRGM)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Consejo Superior de Investigaciones Cientificas [España] = Spanish National Research Council [Spain] (CSIC)
International audience
Show more [+] Less [-]English. Culverts are hydraulic structures massively applied to cross-drainage and agricultural settings where their management is of prominent importance to control water use. To that end, the study of culvert flow is a requisite but also a complex task. Steady flow solutions are routinely studied upon design, which are numerous due to the many combinations of boundary and geometrical conditions in this type of structures. Guides such as those provided by the States Geological Survey (USGS) service and the Federal Highway Administration (FHWA) has been developed hence based on the popular inlet-outlet control-based classification scheme. However, the inclusion of peripherical elements increase the expected steady flow solutions in culvert flow. Upstream control sluice gates are the most common among these types of elements, whose inclusion add complexity to the problem leading the classical design guides obsolete. The scarce guides available on gated culvert flow fall short to approximate all likely solutions. In addition, the lack of substantial data base of both field and laboratory data limits the assessment of the hydraulic features as well as model validation. This study is intended at providing a comprehensive classification of steady flow states and a laboratory data set on flow through gated circular culverts as the germ of the development of an integrated, case-independent hydraulic model proposal. Important flow features revealed in the data and modelling requirements in the future model are discussed in this communication.
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