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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...
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...
We have found that the relation between the flow through campylotic (generically curved) media, consisting of randomly located curvature perturbations, and the average Ricci scalar of the system exhib...
Fluid flow control with transformation media
Coordinate transformations, Brinkman-Stokes flow,porous media,
2011/9/1
We introduce a new concept for the manipulation of uid ow around three-dimensional bodies.Inspired by transformation optics, the concept is based on a mathematical idea of coordinate trans-formations,...
Diagrammatic Approach to Classical Transport in Disordered Continuous Media: Investigating the High-Temperature Regime of Quantum Hall Transitions
Diagrammatic Classical Transport Disordered Continuous Media High-Temperature Regime of Quantum
2011/8/17
Abstract: We develop a general diagrammatic formalism based on a local conductivity approach to compute electronic transport in continuous media with long range disorder, in the absence of quantum int...
Spontaneous Transition of Turbulent Flames to Detonations in Unconfined Media
Turbulent Flames Detonations in Unconfined Media
2011/9/14
Deflagration-to-detonation transition (DDT) can occur in environments ranging from experimental and industrial systems to astrophysical thermonuclear (type Ia) supernovae explosions. Substantial progr...
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 ...
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、...
大连理工大学工业装备结构分析国家重点实验室研究成果:多孔多相材料热-渗流-力学-传质耦合过程数值模拟 Numerical Modeling of Coupled Thermo-hydro-mechanical Problems Including Mass Transfer in Porous Media Saturated with Multi-phase Pore Fluids
大连理工大学工业装备结构分析国家重点实验室研究成果 多孔多相材料 传质耦合过程 数值模拟
2008/3/9
多孔多相材料热-渗流-力学-传质耦合过程数值模拟
Numerical Modeling of Coupled Thermo-hydro-mechanical Problems Including
Mass Transfer in Porous Media Saturated with Multi-phase Pore Fluids
在国际上首先对非饱和土...
Lévy stable distribution and [0,2] power law dependence of acoustic absorption on frequency in various lossy media
Lévy stable distribution [0,2] power law dependence acoustic absorption various lossy media
2010/10/22
Absorption of acoustic wave propagation in a large variety of lossy media is characterized by an empirical power law function of frequency, 0j!jy. It has long been noted that the exponent y ranges fr...
Flame stabilization of highly diffusive gas mixtures in porous inert media
combustion in porous media flame quenching di® usion e® ects
2010/3/12
Flame propagation experiments in porous media were carried out for mixtures with di®erent Lewis-numbers in order to determine the critical P¶eclet-number, above which flame propagation is pos...
Fractional Laplacian time-space models for linear and nonlinear lossy media exhibiting arbitrary frequency dependency
Fractional Laplacian time-space models linear and nonlinear lossy media arbitrary frequency dependency
2010/10/22
Frequency-dependent attenuation typically obeys an empirical power law with an exponent ranging from 0 to 2. The standard time-domain partial differential equation models can describe merely two extre...
Modified Szaboo wave equation models for lossy media obeying frequency power law
Modified Szaboo wave equation models lossy media frequency power law
2010/10/22
Szabo’s models of acoustic attenuation @Szabo, J. Acoust. Soc. Am. 96~1!, 491–500 ~1994!# comply well with the empirical frequency power law involving noninteger and odd-integer exponent coefficients ...