| Texto completo | |
| Autor(es): |
Birgin, E. G.
;
Martinez, J. M.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | NUMERICAL ALGORITHMS; v. N/A, p. 16-pg., 2023-09-07. |
| Resumo | |
An optimization-based tool for flow predictions in natural rivers is introduced assuming that some physical characteristics of a river within a spatial-time domain [x(min), x(max)] x[t(min), t(today)] are known. In particular, it is assumed that the bed elevation and width of the river are known at a finite number of stations in [x(min), xmax] and that the flow-rate at x = x(min) is known for a finite number of time instants in [t(min), t(today)]. Using these data, given t(future) > t(today) and a forecast of the flow-rate at x = x(min) and t = t(future), a regression-based algorithm informed by partial differential equations produces predictions for all state variables (water elevation, depth, transversal wetted area, and flow-rate) for all x. [x(min), x(max)] and t = t(future). The algorithm proceeds by solving a constrained optimization problem that takes into account the available data and the fulfillment of Saint-Venant equations for one-dimensional channels. The effectiveness of this approach is corroborated with flow predictions of a natural river. (AU) | |
| Processo FAPESP: | 18/24293-0 - Métodos computacionais de otimização |
| Beneficiário: | Sandra Augusta Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 13/07375-0 - CeMEAI - Centro de Ciências Matemáticas Aplicadas à Indústria |
| Beneficiário: | Francisco Louzada Neto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 16/01860-1 - Problemas de corte, empacotamento, dimensionamento de lotes, programação da produção, roteamento, localização e suas integrações em contextos industriais e logísticos |
| Beneficiário: | Reinaldo Morabito Neto |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |