搜索结果: 1-15 共查到“知识库 porous media”相关记录42条 . 查询时间(0.057 秒)
Visualizing complex pore structure and fluid flow in porous media using 3D printing technology and LBM simulation
3D printing Pore structure LBM Visualization
2018/3/23
Pore structures of porous media and properties of fluid flow are key factors for the study of non-Darcy groundwater flow. However, it is difficult to directly observe pore structures and flow properti...
Traveling fronts in porous media: existence and a singular limit
Traveling fronts porous media existence singular limit
2015/7/14
We consider a model for the propagation of a subsonic detonation wave through a porous medium introduced by Sivashinsky [8]. We show that it admits travelling wave solutions that converge in the limit...
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...
Stabilized mixed finite elements for deformable porous media with double porosity
Coupled problem Double porosity Effective stress Mixture theory Stabilized finite elements Twofold saddle point problem
2015/7/1
Natural geomaterials such as fissured rocks and aggregated soils often exhibit a pore size distribution with two dominant pore scales, usually termed macropores and micropores. High-fidelity descripti...
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...
Testing of activated carbon for water and non-volatile LNAPL quantitative determination in porous media under laboratory conditions
activated carbon LNAPL silica sand Silcarbon SC40 sampling interval
2015/3/10
Activated carbon is a highly porous form of carbon, which has an exceptionally large surface area. Activated carbon material has been artificially processed as a set of plates, within which two differ...
MATHEMATICAL MODEL FOR FRONTOGENESIS IN TURBULENT FLOW THROUGH POROUS MEDIA
Turbulent flow Heterogeneity Frontogenesis Richardson number Drag coefficient Eddy diffusivity
2015/2/4
The effects of horizontal density gradient and nonlinear drag offered by the solid particles on turbulent flow through
geological media are analysed analytically in the presence of a vertical gravita...
Quantifying the Effcts of Cementation on the Hydromechanical Properties of Granular Porous Media Using Discrete Element and Poroelastic Models
Cementation on the Hydro Mechanical Properties Granular Porous Media Discrete Element Poroelastic Models
2014/10/22
Cementation is known to significantly influence the mechanical and hydrologic properties of granular porous media by increasing the stiffness of the elastic response to stress and reducing permeabilit...
Plane Stagnation Double-Diffusive MHD Convective Flow with Convective Boundary Condition in a Porous Media
Plane Stagnation Double-Diffusive MHD Convective Flow and Porous Media
2013/1/30
A numerical analysis has been carried out to study the problem of plane stagnation double-diffusive MHD convective flow with convective boundary condition in a porous media. The governing nonlinear pa...
Time domain numerical modeling of wave propagation in 2D heterogeneous porous media
porous media elastic waves Biot’s model time splitting
2011/3/2
This paper deals with the numerical modeling of wave propagation in porous media described by Biot’s theory. The viscous efforts between the fluid and the elastic skeleton are assumed to be a linear f...
On the performance of the variational multiscale formulation for subsurface flow and transport in heterogeneous porous media
variational multiscale formulation subsurface flow and transport heterogeneous porous media
2011/3/3
The following work compares two popular mixed nite elements used to model subsur-face
ow and transport in heterogeneous porous media; the lowest order Raviart-Thomas element and the variational mul...
Adomian decomposition method for dispersion phenomena arising in longitudinal dispersion of miscible fluid flow through porous media
Adomian Decomposition method Miscible fluid
2010/11/25
In this paper a theoretical model is developed for the dispersion problem in porous media in which the flow is one dimensional and the average flow is unsteady. The Numerical Solution and graphical il...
Pore-Scale Modeling of Non-Newtonian Flow in Porous Media
Pore-Scale Modeling Non-Newtonian Flow Porous Media
2010/11/12
The thesis investigates the flow of non-Newtonian fluids in porous media using pore-scale network modeling. Non-Newtonian fluids show very complex time and strain dependent behavior and may have initi...
A probabilistic algorithm approximating solutions of a singular PDE of porous media type
A probabilistic algorithm approximating solutions singular PDE
2010/11/19
The object of this paper is a one-dimensional generalized porous media equation (PDE) with possibly discontinuous coefficient $\beta$, which is well-posed as an evolution problem in $L^1(\mathbb{R})$...