Use of HEC-HMS in floodwave propagation simulations

• Autor: Bueno, Jorge
• Formato: artículo
• Fecha de Publicación: 2020
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/20299
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/20299
• Nivel de acceso: acceso abierto
• Materia: Hydraulics; HIdráulica

A delicate feature of the flood propagation simulation performed by the program HEC-1 with theoption of the modified Puls method with normal flow approximation is constituted by the estimationof the quanta parameter NSTPS. While it is recognized to be a parameter that one should calibrate, itis usually recommended that it be estimated as the ratio (wave travel time/integration time step). Inthis paper it is shown that numerical experiments conducted with the program FEQ, retained asstandards, when compared with HEC-1 solution, do not confirm the above estimate. The preliminaryresults presented here suggest that the ratio (time to peak of outflow hydrograph/time to peak ofinflow hydrograph) may be a more meaningful, but strongly event dependent,parameter.