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Fluid-flow measurements in low permeability media with high pressure gradients using neutron imaging: Application to concrete
Abstract : This article focuses on a new experimental apparatus for investigating fluid flow under high pressure gradients within low-permeability porous media by means of neutron imaging. A titanium Hassler cell which optimises neutron transparency while allowing high pressure confinement (up to 50 MPa) and injection is designed for this purpose and presented here. This contribution focuses on the development of the proposed methodology thanks to some preliminary results obtained using a new neutron imaging facility named NeXT on the D50 beamline at the Institute Laue Langevin (Grenoble). The preliminary test was conducted by injecting normal water into concrete sample prepared and saturated with heavy water to take advantage of the isotope sensitivity of neutrons. The front between these two types of water is tracked in space and time with a combination of neutron radiography and tomography.
Littérature citée [19 références]
https://hal.univ-grenoble-alpes.fr/hal-01994211
Contributeur : Andò Edward <>
Soumis le : vendredi 25 janvier 2019 - 12:58:54
Dernière modification le : vendredi 20 novembre 2020 - 12:54:03
Contributeur : Andò Edward <>
Soumis le : vendredi 25 janvier 2019 - 12:58:54
Dernière modification le : vendredi 20 novembre 2020 - 12:54:03
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