NUMERICAL MODELLING OF INFILTRATION OF HYDROCARBONS IN UNSATURATED SOILS USING THE FINITE VOLUME METHOD / MODELAGEM NUMÉRICA DA INFILTRAÇÃO DE HIDROCARBONETOS EM SOLOS NÃO SATURADOS UTILIZANDO O MÉTODO DE VOLUMES FINITOS
AUTOR(ES)
PAMELA ALESSANDRA R YAQUETTO
DATA DE PUBLICAÇÃO
2009
RESUMO
A large proportion of the population depends on groundwater for consumption. Thus, leakage of gasoline tanks represents a significant risk to public health besides the risk of fire and explosion in the sewer lines, due to the flammable gases. These tanks are generally located in the unsaturad soil above the groundwater level. It is therefore important to evaluate the mobility of these compounds under these conditions and in particular to predict its arrival in the water table. This assessment can be done by numerical procedures for analysis. The main objective of this work is the numerical implementation of a program that simulates the transient flow of NAPLs (non aqueous phase liquids) in unsaturated porous media. The numerical solution is obtained by using the method of finite volumes. To represent the hydraulic characteristics of soils, the function of Brooks and Corey, as well as the Brooks and Corey-Burdine¿s model are used. The essay presents details of the program developed and its use to simulate the flow testing of gasoline and gasoline blended with ethanol made in the PUC in previus studies.
ASSUNTO(S)
numerical modeling multiphase flow finite volume fluxo multifasico modelagem numerica volumes finitos
ACESSO AO ARTIGO
Documentos Relacionados
- Analise numerica de mancais hidrodinamicos lisos e ranhurados utilizando o metodo dos volumes finitos
- ANÁLISE NUMÉRICA DE SENSORES ELETROMAGNÉTICOS DE PROSPECÇÃO PETROLÍFERA UTILIZANDO O MÉTODO DOS VOLUMES FINITOS
- MODELAGEM CONSTITUTIVA PARA SOLOS COM ÊNFASE EM SOLOS NÃO SATURADOS
- Modelagem computacional de escoamentos de fluidos em solos não saturados
- Análise numérica de provas de carga em sapatas utilizando o método dos elementos finitos