We deal with the spatial distribution of the hydraulic conductivity K within heterogeneous porous formations where a radial flow (typical of pumping and slug tests) is taking place. In particular, the study provides a wide data-set which is instrumental to corroborate theoretical findings about the stochastic behavior of K in the above flow configuration. Here, K-data pertain to a series of slug tests conducted within a large caisson which was densely instrumented in order to capture the transitional behavior of the conductivity from the near field (close to the pumping well) to the far field (away from the pumping well). For the experiments at stake, it is shown that the apparent conductivity Kapp is a very robust property. In fact, with the exception of a very tiny annulus surrounding the pumping well, Kapp can be used to solve flow (and transport) problems in close analogy to the effective theory approach adopted for a groundwater-type flow. It is hoped that the data-set exploited in the present study will be useful for other researchers who are engaged with similar studies.
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|Titolo:||Experimental evidence of the stochastic behavior of the conductivity in radial flow configurations|
|Data di pubblicazione:||2019|
|Appare nelle tipologie:||1.1 Articolo in rivista|