| Texto completo | |
| Autor(es): |
Gomes Jr, Marcus N.
;
Rapalo, Luis M. C.
;
Oliveira, Paulo T. S.
;
Giacomoni, Marcio H.
;
do Lago, Cesar A. F.
;
Mendiondo, Eduardo M.
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ENVIRONMENTAL MODELLING & SOFTWARE; v. 167, p. 19-pg., 2023-06-14. |
| Resumo | |
The stage-discharge relationship is affected by hysteresis, especially in 1D river cross-sections with very mild slopes, and/or where backwater effects occur. To model these cases, hydraulic property (HP) estimations (e.g., hydraulic radius and conveyance) are usually required as closed-form functions of stage. However, these are typically unavailable for complex cross-sections with overbanks. For no sediment-laden flows, we created the HydroHP-1D tool to solve the 1D Saint Venant Equations aided by the cross-section HP stored in tables. It also simulates irregular and composite hydraulic cross-sections, allows hydrodynamic simulation using the single-channel method (SCM), and proposes the divided channel method (DCM) for steady and unsteady flow analysis. A wide range of applications in rivers such as the Little Washita River and the Upper Negro River, and comparisons with NOAA normal depth solver, HEC-RAS, and with an analytical solution shows a promising scenario of applying HydroHP-1D to estimate 1D steady and unsteady hydrodynamics. (AU) | |
| Processo FAPESP: | 22/08468-0 - Características da evolução de eventos de secas rápidas e mecanismos de respostas à mudança climática considerando correlação espacial |
| Beneficiário: | Eduardo Mario Mendiondo |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Regular |