Browsing by Author "Gavina, A."
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- Aplicação do Método de TAU a um modelo de descontaminação de água subterrâneaPublication . Meira Castro, Ana C.; Matos, José; Gavina, A.Neste trabalho são apresentados alguns resultados obtidos com o método de TAU implementado sobre um modelo dinâmico de transferência de massa em colunas com enchimento desordenado. A solução do sistema de equações em derivadas parciais que traduz o modelo em estado transiente revelou-se ajustada com resultados neméricos muito interessantes.
- Numerical solution of a PDE system with non-linear steady state conditions that translates the air stripping pollutants removalPublication . Meira Castro, Ana C.; Matos, José; Gavina, A.This work deals with the numerical simulation of air stripping process for the pre-treatment of groundwater used in human consumption. The model established in steady state presents an exponential solution that is used, together with the Tau Method, to get a spectral approach of the solution of the system of partial differential equations associated to the model in transient state.
- Spectral solution for the air stripping pollutants removal dynamic model with non linear steady state conditionsPublication . Meira Castro, Ana C.; Matos, José; Gavina, A.This work deals with the numerical simulation of air stripping process for the pre-treatment of groundwater used in human consumption. The model established in steady state presents an exponential solution that is used, together with the Tau Method, to get a spectral approach of the solution of the system of partial differential equations associated to the model in transient state.