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Gawin, Dariusz - Sanavia, Lorenzo (2008) Modelling of cavitation in water saturated porous media considering effects of dissolved air. [Preprint]

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Abstract (inglese)

An extension of a mathematical model for non-isothermal multiphase materials to consider the dissolution of air in liquid water and air mass sources during its desorption at lower water pressure is presented. The solid skeleton is assumed elasto-plastic; heat, water and air flows and water phase changes are taken into account. Physics of air dissolution and water cavitation in porous media is discussed. A numerical example where cavitation develops during strain localization in undrained water saturated dense sands is solved with the developed model as discretized in space and time with the Finite Element Method.


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Tipo di EPrint:Preprint
Anno di Pubblicazione:18 Luglio 2008
Informazioni aggiuntive:Paper TIMP477R2
Parole chiave (italiano / inglese):Poromechanics, Multiphase porous material, Coupled Thermo-Hydro-Mechanical model, Air dissolution and desorption, Water cavitation, Strain localization.
Settori scientifico-disciplinari MIUR:Area 08 - Ingegneria civile e Architettura > ICAR/08 Scienza delle costruzioni
Struttura di riferimento:Dipartimenti > Dipartimento di Costruzioni e Trasporti
Codice ID:1132
Depositato il:14 Ago 2008
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