Modelling of variable density flow in karstic coastal aquifers
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Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2099.1/6421
Tipus de documentTesina
Data2008-06
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This master thesis aims at studying the effect that the presence of the caves has on saline
intrusion in the aquifer. Thus, the final objective is to elaborate a numerical modeling of the groundwater
flow and salt transport in the karstic aquifer. Despite the fact that many researchers have invested their
efforts in studying the behavior of continental karsts, the modeling examples of coastal karstic aquifers
are very rare. Due to the complexity of the problem, it is necessary to apply drastic simplifications. In this
case, the karstic system has been characterized as a porous matrix crossed by one conduit. In the matrix it
is considered that the water flow is driven by the variable density. The flow in the conduit does not take
into account the mass transport processes and, thus, it is supposed to be governed by the Saint Venant
equation. This approach has not been applied to coastal aquifers previously. The main advantage of this
methodology is that it considers the exchange between the conduit and the surrounding matrix. In order to
reach the objective, different models have been implemented in COMSOL Multiphysics, a Finite Element
Method code. Initially, the groundwater flow in the karstic system has been modeled without considering
the variable density of the water. Next, the variable density problem in two dimensions with and without
the conduit is introduced. Finally, the whole problem is extended to three dimensions.
TitulacióENGINYERIA DE CAMINS, CANALS I PORTS (Pla 1995)
Fitxers | Descripció | Mida | Format | Visualitza |
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00.pdf | Abstract | 61,30Kb | Visualitza/Obre | |
01.pdf | Resumen | 59,13Kb | Visualitza/Obre | |
02.pdf | Table of contents | 58,55Kb | Visualitza/Obre | |
03.pdf | 1. Introduction | 351,0Kb | Visualitza/Obre | |
04.pdf | 2. Literature review | 373,2Kb | Visualitza/Obre | |
05.pdf | 3. Description of the model area | 231,3Kb | Visualitza/Obre | |
06.pdf | 4. Methodology | 551,1Kb | Visualitza/Obre | |
07.pdf | 5. Results and discussion | 3,975Mb | Visualitza/Obre | |
08.pdf | 6. Conclusions | 61,46Kb | Visualitza/Obre | |
09.pdf | 7. Acknowledgements | 49,11Kb | Visualitza/Obre | |
10.pdf | 8. References | 106,5Kb | Visualitza/Obre |