Università degli Studi di Padova |
Numerical Analysis Participants:
External Collaborators:
Description of the research projects
Study, development and implementation of a nonlinear three-dimensional finite element model for the prediction of the expected land subsidence due to compaction of gas reservois planned to be developed in the Northern Adriatic basin. Development and implementation of a nonlinear three-dimensional finite element model to simulate the propagation of the pore pressure drawdown in the lateral/bottom aquifers hydraulically connected to the gas fields. Study, development and implementation of three-dimensional finite element land subsidence and waterdrive dynamics models induced by gas extraction. Coupling to the real gas equation of state to simulate the pore pressure distribution and the related land subsidence / surface rebound after the field abandonment. Application to the Dosso degli Angeli gas field, Ravenna. Statistical approach for the computation of a constitutive model for the uniaxial vertical compressibility of the Northern Adriatic sedimentary basin based on in situ deformation measurements by RMT. Interpretation of the FSMT (Formation Subsidence Monitoring Tool) and CMI (Compaction Monitoring Instrument) measurements and derivation of a constitutive model of the basin to be used for the prediction of anthropogenic land subsidence due to gas extraction. The principal aim of research was to develope an efficient and accurate finite element 3-D model for the simulation of transport of radioactive contaminants in the areas indicated. (EU Project RaCoS). Study of coupled surface runoff subsurface flow models for the simulation of hydrological events at the catchment scale. Data assimilation techniques are studied and implemented to improve the accuracy of the simulated predictions. Applications to the Chrenobyl basin and to other European catchments have and will be performed. The study aims at the development of an information system for the symulation and management of the hydrological resources of Meditarranean coastal aquifers. Numerical models for coupled flow and seawater transport qill be developed and simulations performed for aquifers in Israel, Tunisia and Morocco. (Avicenne Project). Study, developement and implementation of iterative methods such as preconditioned conjugate gradient (GMRES, Bi-CGSTAB and TFQMR) for the solution of large spase linear complex systems arising from FELT (Finite Element Laplace Transform) developed for the solution of transport reactive equation in porous medium in non-equlibrium condition. The aim of research is to solve, employing parallel techniques, linear sparse finite element systems and evaluate the corresponding eigenpairs. This study is strictly related to the numerical solution of large flow models developed in a parallel environment. The accuracy of linear Galerkin finite element methods for the solution of flow equation in porous media was studied with particular emphasis on properties of mass conservation in the case of nonstructured mesh. The research studies the numerical techniques used in the solution of the nonlinear Richards equations, governing flow in variably saturated porous media. In particular the application of the mixed finite element approach for spatial discretization qill be studied. Study and implementation of numerical methods for the solution of the model of coupled flow and contaminant transport in porous media. In particular, the flow equation is discretized via mixed hybrid finite elements while the transport equation by means of a combination of mixed finite element and finite volume methods coupled through time splitting of the operators. The overall approach achieves high accuracy and robustness. The project adresses the feasibility and safety of injecting CO2, produced for example by thermo-electrical power plants and separated from other flue gases, in deep saline aquifers and depleted gas reservoirs such as those existing in the Upper Adriatic Basin. (University Padova project). |
Il Webmaster Pagina modificata il 29 Luglio 2003 |