Simulação numérica da infiltração da água em zona subsaturada

• Autor(a) principal: Silva, Adriana da Rocha
• Data de Publicação: 2018
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/13729
• topic: Richards equation; Porous media; DFSANE; Subsaturated zone; Richards, Equação de; Materiais porosos - Escoamento - Metodos de simulação; DFSANE; Zona subsaturada; Drenagem; Solos Escoamento; CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO::MATEMATICA DA COMPUTACAO::MODELOS ANALITICOS E DE SIMULACAO

For the understanding and improvement of a lot of drainage and infiltration processes of the water into the soil, numerical simulation of water ow in subsaturated zone is of the utmost importance. This project of research has as the main objective the development of a computational simulator that allows accurate water flow description in subsaturated zone, such as the vadose zone. This project uses a modeling for the water drainage simulator in a region that is initially subsaturated, which (after some time) can present saturated stretches as a consequence of the water infiltration. The non-linear system obtained as the result of the Richards equation discretization models the problem that will be solved by the method known as DFSANE, which is it a direct search method that does not use derivatives.