搜索结果: 1-15 共查到“知识库 工学 porous media”相关记录20条 . 查询时间(0.218 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...
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...
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...
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...
Viscous and Joule Heating Effects over an Isothermal Cone in Saturated Porous Media
viscous heating Joule heating mixed convection
2010/1/14
In this paper, the magnetohydrodynamic mixed convection flow about an isothermal cone embedded in a saturated porous
medium is considered. The Darcian model including the viscous dissipation effects ...
Exact solutions of unsteady dusty fluid flow through porous media in an open rectangular channel
Frenet frame field system laminar flow rectangular channel
2010/9/27
Solutions are presented for the problem of the motion of a dusty gas through Porous Media in an Open Rectangular Channel. It is assumed that the fluid and the dust particle clouds are static at the be...
分形多孔介质孔道网络模型的构建(Construction of Pore Network Model of Fractal Porous Media)
干燥 多孔介质 孔道网络 分形
2009/11/24
采用压汞试验获得实际多孔介质的微观结构参数。以冻干马铃薯为例计算了孔隙分形维数,结果表明冻干马铃薯结构具有显著的分形特性。运用位似变换理论、分形理论、Voronoi图以及马铃薯的特征参数等,构建出与马铃薯结构参数相对应的二维分形孔道网络模型。构建的网络模型考虑了影响多孔介质干燥的孔道微细结构特征,模型参数能够很好地反映多孔物料的微观结构,且获得了合理的分形维数。
Application of Constrained Interpolation Profile (CIP) Method for Numerical Simulation of Two-phase Flow in Porous Media
CIP method Two-phase flow Porous media Numerical diffusion Shock front
2010/9/8
Numerical simulation technology for two-phase flow in porous media was developed using the Constrained Interpolation Profile (CIP) method. Both the finite difference method and streamline method combi...
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 ...
EFFECTS OF HEAT SINK COMPOUNDS ON CONTACT RESISTANCE OF POROUS MEDIA
thermal conductivity thermal diffusivity bulk density
2009/10/14
High and low-conductivity heat sink compounds were applied in succession on a thermal probe, which was then used to determine the thermal conductivity and thermal diffusivity of some porous media at r...
Experimental Study of Miscible Fluid Injection in Iranian Artificially Fractured Porous Media
Fractured porous media Matrix-fracture mass transfer Miscible displacement Experiment
2009/7/24
Miscible displacement experiments were performed to study recovery efficiency by gravity drainage in Asmari fractured cores. We used vertically mounted 0.0381 m diameter fractured and non-fractured ...
Mathematical Model of One-dimensional Miscible Fluid Injection in Fractured Porous Media
Fractured porous media Method of characteristics Advection mass transfer
2009/7/23
A mathematical model for miscible displacement in fractured porous media is developed. The model takes into account advective, gravitational and crossflow mechanisms of mass exchange between fracture...