scholarly journals Colloid transport through soil and other porous media under transient flow conditions—A review

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Chaozi Wang ◽  
Ruoyu Wang ◽  
Zailin Huo ◽  
En Xie ◽  
Helen E. Dahlke
Keyword(s):  
Porous Media ◽  
Transient Flow ◽  
Colloid Transport ◽  
Flow Conditions

Critical Review of Stabilized Nanoparticle Transport in Porous Media

2019 ◽  
Vol 141 (7) ◽  
Author(s):  
Xiaoyan Meng ◽  
Daoyong Yang
Keyword(s):  
Porous Media ◽  
Steady State ◽  
Single Phase ◽  
Transient Flow ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Flow Conditions ◽  
Nanoparticle Transport ◽  
Two Phase ◽  
Transport In Porous Media

Over the past few decades, due to the special features (i.e., easily produced, large-surface-area-to-volume ratio, and engineered particles with designed surface properties), nanoparticles have not only attracted great attentions from the oil and gas industry but also had various applications from drilling and completion, reservoir characterization, to enhanced oil recovery (EOR). As sensors or EOR agents, thus, fate and behavior of nanoparticles in porous media are essential and need to be investigated thoroughly. Nevertheless, most of the published review papers focus on particle transport in saturated porous media, and all of them are about steady-state flow conditions. So far, no attempts have been extended to systematically review current knowledge about nanoparticle transport in porous media with single-phase and two-phase flow systems under both steady-state and unsteady-state conditions. Accordingly, this review will discuss nanoparticle transport phenomena in porous media with its focus on the filtration mechanisms, the underlying interaction forces, and factors dominating nanoparticle transport behavior in porous media. Finally, mathematical models used to describe nanoparticle transport in porous media for both single-phase flow and two-phase flow under steady-state and transient flow conditions will be summarized, respectively.

Modelling solid transport in building drainage systems

1996 ◽  
Vol 33 (9) ◽  
pp. 9-16 ◽  
Author(s):  
John A. Swaffield ◽  
John A. McDougall
Keyword(s):  
Decision Making ◽  
Boundary Conditions ◽  
Numerical Solution ◽  
Water Conservation ◽  
Transient Flow ◽  
Drainage System ◽  
System Model ◽  
Flow Depth ◽  
Flow Conditions ◽  
Solid Transport

The transient flow conditions within a building drainage system may be simulated by the numerical solution of the defining equations of momentum and continuity, coupled to a knowledge of the boundary conditions representing either appliances discharging to the network or particular network terminations. While the fundamental mathematics has long been available, it is the availability of fast, affordable and accessible computing that has allowed the development of the simulations presented in this paper. A drainage system model for unsteady partially filled pipeflow will be presented in this paper. The model is capable of predicting flow depth and rate, and solid velocity, throughout a complex network. The ability of such models to assist in the decision making and design processes will be shown, particularly in such areas as appliance design and water conservation.

Kaolinite and illite colloid transport in saturated porous media

2021 ◽  
pp. 127052
Author(s):  
Jongmuk Won ◽  
Taehyeong Kim ◽  
Minkyu Kang ◽  
Yongjoon Choe ◽  
Hangseok Choi
Keyword(s):  
Porous Media ◽  
Colloid Transport ◽  
Saturated Porous Media

scholarly journals Pore-Scale Visualization of Colloid Transport and Retention in Partly Saturated Porous Media

2004 ◽  
Vol 3 (2) ◽  
pp. 444-450 ◽  
Author(s):  
J. T. Crist ◽  
J. F. McCarthy ◽  
Y. Zevi ◽  
P. Baveye ◽  
J. A. Throop ◽  
...  
Keyword(s):  
Porous Media ◽  
Colloid Transport ◽  
Saturated Porous Media ◽  
Pore Scale

Transient Flow in Discretely Fractured Porous Media

SPE Journal ◽  
2009 ◽  
Vol 14 (02) ◽  
pp. 362-373 ◽  
Author(s):  
Mehdi Izadi ◽  
Turhan Yildiz
Keyword(s):  
Porous Media ◽  
Transient Flow ◽  
Fractured Porous Media

Local characteristic of horizontal air–water two-phase flow by wire-mesh sensor

2016 ◽  
Vol 40 (3) ◽  
pp. 746-761 ◽  
Author(s):  
Weiling Liu ◽  
Chao Tan ◽  
Feng Dong
Keyword(s):  
Void Fraction ◽  
Transient Flow ◽  
Two Phase Flow ◽  
Wire Mesh ◽  
Local Characteristic ◽  
Phase Flow ◽  
Flow Conditions ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Local Flow

Two-phase flow widely exists in many industries. Understanding local characteristics of two-phase flow under different flow conditions in piping systems is important to design and optimize the industrial process for higher productivity and lower cost. Air–water two-phase flow experiments were conducted with a 16×16 conductivity wire-mesh sensor (WMS) in a horizontal pipe of a multiphase flow facility. The cross-sectional void fraction time series was analysed by the probability density function (PDF), which described the void fraction fluctuation at different flow conditions. The changes and causes of PDFs during a flow regime transition were analysed. The local structure and flow behaviour were characterized by the local flow spectrum energy analysis and the local void fraction distribution (horizontal, vertical and radial direction) analysis. Finally, three-dimensional transient flow fluctuation energy evolution and characteristic scale distribution based on wavelet analysis of air–water two-phase flow were presented, which revealed the structural features of each phase in two-phase flow.

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