A conceptual model is presented for non-Newtonian fluid flow in fractured media. The fluid is represented via a truncated power-law model, the fracture aperture via a stochastic model The fracture flowrate is derived for flow perpendicular to aperture variation as a function of the parameters describing the fluid rheology and the variability of the aperture field Adoption of the pure power law model leads to overestimation of the flowrate with respect to the truncated model, more so for large external pressure gradient and/or aperture variability
NON-NEWTONIAN FLOW IN A VARIABLE APERTURE FRACTURE: EFFECT OF FLUID RHEOLOGY / Felisa, Giada; Ciriello, Valentina; Longo, Sandro Giovanni; Di Federico, Vittorio. - ELETTRONICO. - (2016), pp. 1-4. (Intervento presentato al convegno XXXV Convegno Nazionale di Idraulica e Costruzioni Idrauliche Bologna, 14-16 Settembre 2016 tenutosi a Bologna nel 14-16 Settembre 2016).
NON-NEWTONIAN FLOW IN A VARIABLE APERTURE FRACTURE: EFFECT OF FLUID RHEOLOGY
LONGO, Sandro Giovanni;
2016-01-01
Abstract
A conceptual model is presented for non-Newtonian fluid flow in fractured media. The fluid is represented via a truncated power-law model, the fracture aperture via a stochastic model The fracture flowrate is derived for flow perpendicular to aperture variation as a function of the parameters describing the fluid rheology and the variability of the aperture field Adoption of the pure power law model leads to overestimation of the flowrate with respect to the truncated model, more so for large external pressure gradient and/or aperture variabilityI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
