Finite element analysis of non-isothermal multiphase geomaterials with application to strain localization simulation

Sanavia, Lorenzo; Pesavento, Francesco; Schrefler, B. A.

doi:10.1007/s00466-005-0673-6

Cited by 70 publications

(76 citation statements)

References 34 publications

(57 reference statements)

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“…a local concentration of plastic solid deformations in narrow bands of finite width called shear bands) in water-saturated or partially saturated geomaterials has been modelled in recent years by developing bi-or threephase porous media models, e.g. by Rudnicki and Rice (1975), Vardoulakis (1986), Shuttle and Smith (1990), Chambon et al (1994), Schrefler et al (1995), , Gawin et al (1998), Ehlers and Volk (1999), Zhang et al (2001), Borja (2004), Ehlers et al (2004), Mira et al (2004), Liu et al (2005), Sanavia et al (2006), Stankiewicz and Pamin (2006) among others.…”

Section: Introductionmentioning

confidence: 98%

Simulation of Cavitation in Water Saturated Porous Media Considering Effects of Dissolved Air

Gawin

Sanavia

2009

Transp Porous Med

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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 desaturation due to the air released from liquid water during cavitation in porous media are discussed. A numerical example where cavitation develops during shear band development 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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Section: Introductionmentioning

confidence: 98%

Simulation of Cavitation in Water Saturated Porous Media Considering Effects of Dissolved Air

Gawin

Sanavia

2009

Transp Porous Med

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“…The mass balance equations for water and gas are expressed as follows (Sanavia et al, 2005;Wang et al, 2009;Xu et al, 2014):…”

Section: Governing Equationsmentioning

confidence: 99%

黄土土柱加热加速蒸发的试验模拟研究

Liu

Zhan

et al. 2016

J. Zhejiang Univ. Sci. A

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Abstract:The water vapor diffusion can be enhanced by the heating from municipal solid waste, and significantly impact the evaporation process in the earthen final cover. The parameters associated with the water vapor diffusion are usually measured by using the instantaneous profile method. This method is very time-consuming because the drying process lasts a long time. In this study, a bottom heating method is proposed to accelerate the drying process in a loess soil column. A constant temperature of 70 °C is applied at the bottom of the soil column. The thermo-hydraulic response of the loess is monitored along the soil column. A numerical model is developed to simulate the coupled thermo-hydraulic process. The numerical model is used to back analyze the tortuosity τ of the loess for vapor diffusion and the parameter a of an empirical evaporation function. We found that the bottom heating accelerated the drying process of the soil column by almost 22 d compared with the conditions without heating under the same evaporation boundary. Before Day 15, the proportions of the enhanced vapor flux in the total water loss were higher than 50%, dominating the evaporation process. The experimental and numerical study demonstrated that the proposed heating method is able to obtain the parameters of vapor diffusion more efficiently than the conventional method.

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“…Numerical strategies for the treatment of thermo-hydromechanical processes are introduced in e.g. [49][50][51][52].…”

Section: Preliminary Remarksmentioning

confidence: 99%

Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO₂Injection into Deep Saline Aquifers

Goerke

Park

Wang

et al. 2011

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Résumé -Simulation numérique des processus hydromécaniques polyphasiques provoqués par l'injection de CO 2 dans des aquifères salins profonds -Cet article présente le concept de la modé-lisation ainsi que la simulation numérique d'écoulement biphasé lors de l'injection de CO 2 dans des aquifères salins profonds. L'étude se concentre sur des processus à court terme dans la proximité de puits d'injection dans les conditions isothermes. Les équations différentielles principales sont dérivées des équations de bilan de masse et de la quantité de mouvement, et elles sont complétées par des relations constitutives pour des phases solides et fluides ainsi que leur interaction. Les conditions de contrainte sont définies pour la saturation partielle, les fractions de pression de CO 2 et l'eau salée. Pour caractériser l'état de contrainte dans la matrice solide, le principe de contrainte effective est appliqué. Le problème couplé considéré est résolu en utilisant le logiciel scientifique interne OpenGeoSys (un logiciel d'éléments finis libre d'accès) et vérifié avec des exemples pour les processus concernés. Abstract -Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO 2 Injection into Deep Saline Aquifers -In this paper, the conceptual modeling and the numerical simulation of two-phase flow during CO 2 injection into deep saline aquifers is presented. The work focuses on isothermal short-term processes in the vicinity

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Finite element analysis of non-isothermal multiphase geomaterials with application to strain localization simulation

Cited by 70 publications

References 34 publications

Simulation of Cavitation in Water Saturated Porous Media Considering Effects of Dissolved Air

Simulation of Cavitation in Water Saturated Porous Media Considering Effects of Dissolved Air

黄土土柱加热加速蒸发的试验模拟研究

Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO₂Injection into Deep Saline Aquifers

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Finite element analysis of non-isothermal multiphase geomaterials with application to strain localization simulation

Cited by 70 publications

References 34 publications

Simulation of Cavitation in Water Saturated Porous Media Considering Effects of Dissolved Air

Simulation of Cavitation in Water Saturated Porous Media Considering Effects of Dissolved Air

黄土土柱加热加速蒸发的试验模拟研究

Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO2Injection into Deep Saline Aquifers

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Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO₂Injection into Deep Saline Aquifers