搜索结果: 1-15 共查到“力学 Porous”相关记录21条 . 查询时间(0.031 秒)
Critical state plasticity. Part VII: Triggering a shear band in variably saturated porous media
Bifurcation Critical state theory Heterogeneity Mixed formulation Shear band Unsaturated porous media
2015/7/1
In a previous paper (Part VI), the impact of spatially varying density on the localization of deformation of granular materials has been quantified using mesoscopic representations of stresses and def...
On the effective stress in unsaturated porous continua with double porosity
Constitutive behavior Geological material Granular material Microstructures Porous material
2015/7/1
Using mixture theory we formulate the balance laws for unsaturated porous media composed of a double-porosity solid matrix infiltrated by liquid and gas. In this context, the term ‘double porosity’ pe...
We present a finite element model for the analysis of a mechanical phenomenon involving dynamic expulsion of fluids from a fully saturated porous solid matrix in the regime of large deformation. Momen...
Cam-Clay plasticity. Part V: A mathematical framework for three-phase deformation and strain localization analyses of partially saturated porous media
Cam-Clay plasticity
2015/7/1
We present a mathematical framework for deformation and strain localization analyses of partially saturated granular media using three-phase continuum mixture theory. First, we develop conservation la...
On the mechanical energy and effective stress in saturated and unsaturated porous continua
mechanical energy effective stress saturated and unsaturated porous continua
2015/7/1
This paper has two objectives: (a) to formulate a mechanical theory of porous continua within the framework of strong discontinuity concept commonly employed for the analysis of strain localization in...
Porous Superhydrophobic Membranes: Hydrodynamic Anomaly in Oscillating Flows
Porous Superhydrophobic Membranes Hydrodynamic Anomaly Oscillating Flows
2011/8/18
Abstract: We have fabricated and characterized a novel superhydrophobic system, a mesh-like porous superhydrophobic membrane with solid area fraction $\Phi_s$, which can maintain intimate contact with...
Oil displacement through a porous medium with a temperature gradient
Oil displacement a porous medium a temperature gradient
2011/9/14
We investigate the effect of a temperature gradient on oil recovery in a two-dimensional porenetwork model. The oil viscosity depends on temperature as, μo = exp(B/T ), where B is a physico-chemi...
Effects of bottom shear stresses on the wave-induced dynamic response in a porous seabed: PORO–WSSI (shear) model
Bottom shear stresses Wave-induced dynamic response Porous seabed “u–p&rdquo approximation Biot’s theory
2012/2/28
When ocean waves propagate over the sea floor, dynamic wave pressures and bottom shear stresses exert on the surface of seabed. The bottom shear stresses provide a horizontal loading in the wave-seabe...
Effects of Porosity on the Free Convection Flow of Non-Newtonian Fluids Along a Vertical Plate Embedded in a Porous Medium
Non-Newtonian flow natural convection porous medium
2009/10/15
In recent years, great interest has been shown in porous media. The applications of porous media ingeophysics, petroleum processes, and air conditioning are well established. Many studies of porous me...
MOISTURE INTRUSION IN VISCOELASTIC POROUS MEDIA: INDUCED-STRESS AND DEFORMATION
moisture intrusion moisture content stress
2009/10/14
Porous media exposed to humid air absorb moisture which can lead to extensive internal damage and failure. In this paper, we analyze numerically the influence of the moisture intrusion in a two-layer ...
INSTABILITY OF TWO ROTATING VISCOELASTIC (WALTERS B') SUPERPOSED FLUIDS WITH SUSPENDED PARTICLES IN POROUS MEDIUM
Rayleigh-Taylor instability Walters B viscoelastic fluid suspended particles
2009/10/14
The instability of the plane interface between two Walters B/ viscoelastic superposed fluids permeated with suspended particles and uniform rotation in porous medium is considered following the linear...
COMBINED OF MAGNETIC FIELD AND THERMOPHORESIS PARTICLE DEPOSITION IN FREE CONVECTION BOUNDARY LAYER FROM A VERTICAL FLAT PLATE EMBEDDED IN A POROUS MEDIUM
mass transfer magnetic field thermophoresis
2009/10/14
Deals with heat and mass transfer by steady laminar boundary layer flow of Newtonian, viscous fluid over a vertical flat plate embedded in a fluid-saturated porous medium in the presence of thermophor...
Steady Flow of a Walter's B' Viscoelastic Fluid between a Porous Elliptic Plate and the Ground
Walter's viscoelastic fluid Porous elliptic plate Lift and drag
2009/10/12
Steady three-dimensional flow of a Walter's B' viscoelastic fluid between a porous elliptic plate and the ground was considered. From a practical point of view, this problem corresponds to fluid-cushi...
Flow of a Second-Grade Visco-Elastic Fluid in a Porous Converging Channel
Second-grade fluid Converging channel Viscoelasticity Suction/Injection
2009/10/12
The problem dealing with the two dimensional and steady flow of a second-grade fluid in a converging channel has been analyzed. It is assumed that the fluid is injected into the channel through one wa...
第十届全国渗流力学学术会议暨国际渗流论坛（THE 10TH NATIONAL CONFERENCE ON FLUID MECHANICS IN POROUS MEDIA）
第十届 渗流力学 国际渗流论坛
2009/4/2
渗流力学是研究多孔介质内流体流动规律及应用的科学。自创立至今，在地下水、石油、天然气、煤层（成）气、地热、核能等资源能源开发及水利、水电、采矿、公路、铁路等工程建设中得到广泛应用，同时在生物渗流力学、环境渗流力学、物理化学渗流力学、地下水污染控制等科技问题的研究中得到了长足发展，而在非达西、非牛顿、非等温、非线性及多尺度、多场多相耦合渗流理论与应用等研究领域中面临新的挑战。渗流力学已成为众多工程、...