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Consortium of Swiss Academic Libraries

Phase-field simulation of micropores constrained by a solid network

Jacot, A. ; Meidani, H. ; Felberbaum, M.

In: Transactions of the Indian Institute of Metals, 2009, vol. 62, no. 4-5, p. 305-308

Consortium of Swiss Academic Libraries

Einfluss des Feuchtigkeitsgehaltes auf das kapillare Saugen

Primi, P. ; Wittmann, F.H.

In: Restoration of Buildings and Monuments, 1996, vol. 2, no. 5, p. 415-426

Consortium of Swiss Academic Libraries

Upper-crustal seismic velocity heterogeneity as derived from a variety of P-wave sonic logs

Holliger, K.

In: Geophysical Journal International, 1996, vol. 125, no. 3, p. 813-829

Université de Fribourg

Three-dimensional pore structure and ion conductivity of porous ceramic diaphragms

Wiedenmann, Daniel ; Keller, Lukas ; Holzer, Lorenz ; Stojadinović, Jelena ; Münch, Beat ; Suarez, Laura ; Fumey, Benjamin ; Hagendorfer, Harald ; Brönnimann, Rolf ; Modregger, Peter ; Gorbar, Michal ; Vogt, Ulrich F. ; Züttel, Andreas ; Mantia, Fabio La ; Wepf, Roger ; Grobéty, Bernard

In: AIChE Journal, 2013, vol. 59, no. 5, p. 1446–1457

The ion conductivity of two series of porous ceramic diaphragms impregnated with caustic potash was investigated by electrochemical impedance spectroscopy. To understand the impact of the pore structure on ion conductivity, the three-dimensional (3-D) pore geometry of the diaphragms was characterized with synchrotron x-ray absorption tomography. Ion migration was calculated based on an extended...

Université de Neuchâtel

Regional simulation of coupled hydromechanical processes in fractured and granular porous aquifer using effective stress-dependent parameters

Preisig, Giona ; Perrochet, Pierre (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2013.

Field observations and laboratory experiments have clearly demonstrated that heavily perturbed / exploited aquifers are subject to 3D deformations, which may cause significant socio-economic impacts at regional scale. Most common examples include: (1) excessive pumping of groundwater from deep aquifers leading to land subsidence; (2) deep excavation of tunnels in permeable geological units...

Université de Neuchâtel

Modelling Acid-Rock Interactions and Mineral Dissolution During RMA Stimulation Test Performed at the Soultz-sous-Forêts EGS Site, France

Portier, Sandrine ; Vuataz, François-David

In: Proceedings World Geothermal Congress, 2010, vol. 31, no. 3127, p. 1-8

The Soultz EGS reservoir’s response to chemical stimulation is assessed by numerical simulation of coupled thermo-hydraulic-chemical processes. To assess chemical interactions between host rocks and a mixture of HCl and HF as well as its potential effects on the Soultz EGS reservoir, new modelling efforts using the FRACHEM code have been initiated. This paper presents the model calibration and...