Université de Neuchâtel

Flow behavior in a dual fracture network

Jourde, Hervé ; Cornaton, Fabien ; Pistre, Séverin ; Bidaux, Pascal

In: Journal of Hydrology, 2002, vol. 266, no. 1-2, p. 99-119

A model that incorporates a pseudo-random process controlled by mechanical rules of fracturing is used to generate 3D orthogonal joint networks in tabular stratified aquifers. The results presented here assume that two sets of fractures, each with different conductivities, coexist. This is the case in many aquifers or petroleum reservoirs that contain sets of fractures with distinct hydraulic...

Université de Neuchâtel

Bacteriophage transport through a fining-upwards sedimentary sequence : laboratory experiments and simulation

Flynn, Raymond ; Cornaton, Fabien ; Hunkeler, Daniel ; Rossi, Pierre

In: Journal of Contaminant Hydrology, 2004, vol. 74, no. 1-4, p. 231-252

A column containing four concentric layers of progressively finer-grained glass beads (graded column) was used to study the transport of the bacteriophage T7 in water flowing parallel to layering through a fining-upwards (FU) sedimentary structure. By passing a pulse of T7, and a conservative solute tracer upwards through a column packed with a single bead size (uniform column), the capacity of...