151077 20260221074436.0 doi 10.1080/00221686.2024.2445539 sideral 142945 ART-2025-142945 eng (orcid)0000-0001-8674-1042 Vallés, Pablo Universidad de Zaragoza Flood-control reservoir simulation using an aggregated model and regulation in 2D shallow water problems 2025 Flood-control reservoirs are crucial for mitigating flood risks. When linked to flood-prone river reaches, 2D numerical models that capture river-reservoir dynamics are essential. However, 2D reservoir discretization requires many cells, being areas with near-zero velocity. This study introduces a 2D-0D coupled model, combining a 0D reservoir representation with a 2D shallow water model for the river and incorporating a PID control for reservoir level regulation based on dam height. The aim is to improve computational efficiency without sacrificing the accuracy of fully 2D models, water level control in the reservoir. Test cases reveal similar accuracy between the two models, with the 2D-0D approach offering substantial computational benefits. Realistic scenarios confirm these findings, yielding an effective, accurate tool for such applications. info:eu-repo/grantAgreement/ES/MINECO/DIN2018-010036 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0001-8221-523X Echeverribar, Isabel Universidad de Zaragoza (orcid)0000-0003-4444-778X García-Navarro, Pilar Universidad de Zaragoza 5001 600 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Mecánica de Fluidos 63, 1 (2025), 48-63 J. hydraul. res. JOURNAL OF HYDRAULIC RESEARCH 0022-1686 3620281 http://zaguan.unizar.es/record/151077/files/texto_completo.pdf Versión publicada info:eu-repo/date/embargoEnd/2026-02-20 636142 http://zaguan.unizar.es/record/151077/files/texto_completo.jpg?subformat=icon icon Versión publicada info:eu-repo/date/embargoEnd/2026-02-20 oai:zaguan.unizar.es:151077 articulos driver 2026-02-20-14:58:13 ARTICLE