OSCAR CASTRO ORGAZ2026-01-292026-01-29202310.1061/JHEND8.HYENG-133382-s2.0-85153929651https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/36345Civil and Structural EngineeringMechanical EngineeringWater Science and TechnologyVariational Models for Nonhydrostatic Free-Surface Flow: A Unified Outlook to Maritime and Open-Channel Hydraulics Developmentsresearch article