scholarly journals Two-Phase Flow in a Two-Dimensional Bidisperse Anisotropic Pore Network Model

1990 ◽  
Vol 7 (2) ◽  
pp. 75-86 ◽  
Author(s):  
Peter J. Schweighart ◽  
David Nicholson
Keyword(s):  
Network Model ◽  
Two Phase Flow ◽  
Pore Network ◽  
Pore Network Model ◽  
Phase Flow ◽  
Two Dimensional ◽  
Two Phase

Based on the Pore Network Model of CO2-Water-Quartz System Two-Phase Flow Characteristics Study

2014 ◽  
Vol 962-965 ◽  
pp. 1289-1292 ◽  
Author(s):  
Ling Yu Chen ◽  
Yu Liu ◽  
Meiheriayi Mutailipu
Keyword(s):  
Network Model ◽  
Two Phase Flow ◽  
Flow Characteristics ◽  
Pore Network ◽  
Pore Network Model ◽  
Phase Flow ◽  
Saline Aquifer ◽  
Two Phase ◽  
Aquifer Storage ◽  
Relative Permeability Curves

Saline aquifer storage is considered to be one of the main ways to realize CO2 geological sequestration. The purpose of the paper is to research CO2 and water seepage characteristics under the condition of different pressure and diameter of glass sand. First, establish four kinds of sand packed beds pore network model. Secondly, measuring the gas-liquid interfacial tension, contact angle under the condition of 50°C and different pressure (5-20MPa). Finally, using the two-phase flow model, obtain the gas-liquid two-phase relative permeability curves under different conditions. The simulation results of this paper can help to predict the actual saline aquifer storage of CO2 sequestration.

scholarly journals Validating the Generalized Pore Network Model Using Micro-CT Images of Two-Phase Flow

2019 ◽  
Vol 130 (2) ◽  
pp. 405-424 ◽  
Author(s):  
Ali Q. Raeini ◽  
Jianhui Yang ◽  
Igor Bondino ◽  
Tom Bultreys ◽  
Martin J. Blunt ◽  
...  
Keyword(s):  
Network Model ◽  
Two Phase Flow ◽  
Pore Network ◽  
Ct Images ◽  
Pore Network Model ◽  
Phase Flow ◽  
Micro Ct ◽  
Two Phase

Simulation of two-phase flow in soils using microscopic pore network model

2014 ◽  
pp. 877-882
Author(s):  
Jay Meegoda ◽  
Shengyan Gao ◽  
Liming Hu ◽  
Pengwei Zhang
Keyword(s):  
Network Model ◽  
Two Phase Flow ◽  
Pore Network ◽  
Pore Network Model ◽  
Phase Flow ◽  
Two Phase

scholarly journals Gas-Water Two Phase Flow Simulation Based on Pore Network Model for Reservoir Rocks

2017 ◽  
Vol 142 ◽  
pp. 3214-3219 ◽  
Author(s):  
Meiheriayi Mutailipu ◽  
Yu Liu ◽  
Bohao Wu ◽  
Yongchen Song ◽  
Dayong Wang ◽  
...  
Keyword(s):  
Network Model ◽  
Two Phase Flow ◽  
Flow Simulation ◽  
Pore Network ◽  
Pore Network Model ◽  
Phase Flow ◽  
Two Phase ◽  
Reservoir Rocks ◽  
Simulation Based

scholarly journals Fluid Meniscus Algorithms for Dynamic Pore-Network Modeling of Immiscible Two-Phase Flow in Porous Media

2021 ◽  
Vol 8 ◽  
Author(s):  
Santanu Sinha ◽  
Magnus Aa. Gjennestad ◽  
Morten Vassvik ◽  
Alex Hansen
Keyword(s):  
Porous Media ◽  
Steady State ◽  
Two Phase Flow ◽  
Pore Network ◽  
Flow In Porous Media ◽  
Pore Network Model ◽  
Phase Flow ◽  
Steady State Flow ◽  
Two Phase ◽  
Dynamic Pore Network

We present in detail a set of algorithms for a dynamic pore-network model of immiscible two-phase flow in porous media to carry out fluid displacements in pores. The algorithms are universal for regular and irregular pore networks in two or three dimensions and can be applied to simulate both drainage displacements and steady-state flow. They execute the mixing of incoming fluids at the network nodes, then distribute them to the outgoing links and perform the coalescence of bubbles. Implementing these algorithms in a dynamic pore-network model, we reproduce some of the fundamental results of transient and steady-state two-phase flow in porous media. For drainage displacements, we show that the model can reproduce the flow patterns corresponding to viscous fingering, capillary fingering and stable displacement by varying the capillary number and viscosity ratio. For steady-state flow, we verify non-linear rheological properties and transition to linear Darcy behavior while increasing the flow rate. Finally we verify the relations between seepage velocities of two-phase flow in porous media considering both disordered regular networks and irregular networks reconstructed from real samples.

Numerical Analysis of Two-Phase Pipe Flow of Liquid Helium Using Multi-Fluid Model

2001 ◽  
Vol 123 (4) ◽  
pp. 811-818 ◽  
Author(s):  
Jun Ishimoto ◽  
Mamoru Oike ◽  
Kenjiro Kamijo
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Liquid Helium ◽  
Two Phase Flow ◽  
Fluid Model ◽  
Numerical Results ◽  
Phase Flow ◽  
Two Dimensional ◽  
Two Phase ◽  
Normal Fluid

The two-dimensional characteristics of the vapor-liquid two-phase flow of liquid helium in a pipe are numerically investigated to realize the further development and high performance of new cryogenic engineering applications. First, the governing equations of the two-phase flow of liquid helium based on the unsteady thermal nonequilibrium multi-fluid model are presented and several flow characteristics are numerically calculated, taking into account the effect of superfluidity. Based on the numerical results, the two-dimensional structure of the two-phase flow of liquid helium is shown in detail, and it is also found that the phase transition of the normal fluid to the superfluid and the generation of superfluid counterflow against normal fluid flow are conspicuous in the large gas phase volume fraction region where the liquid to gas phase change actively occurs. Furthermore, it is clarified that the mechanism of the He I to He II phase transition caused by the temperature decrease is due to the deprivation of latent heat for vaporization from the liquid phase. According to these theoretical results, the fundamental characteristics of the cryogenic two-phase flow are predicted. The numerical results obtained should contribute to the realization of advanced cryogenic industrial applications.

Experiment and Numerical Simulation of Bubble Behaviors in Argon Gas Injection Into Lead-Bismuth Pool

2006 ◽  
Author(s):  
Yumi Yamada ◽  
Toyou Akashi ◽  
Minoru Takahashi
Keyword(s):  
Direct Contact ◽  
Two Phase Flow ◽  
Experimental Result ◽  
Feed Water ◽  
Force Model ◽  
Phase Flow ◽  
Two Dimensional ◽  
Two Phase ◽  
Argon Gas ◽  
Bubble Rising

In a lead-bismuth alloy (45%Pb-55%Bi) cooled direct contact boiling water fast reactor (PBWFR), steam can be produced by direct contact of feed water with primary Pb-Bi coolant in the upper core plenum, and Pb-Bi coolant can be circulated by buoyancy forces of steam bubbles. As a basic study to investigate the two-phase flow characteristics in the chimneys of PBWFR, a two-dimensional two-phase flow was simulated by injecting argon gas into Pb-Bi pool in a rectangular vessel (400mm in length, 1500mm in height, 50mm in width), and bubble behaviors were investigated experimentally. Bubble sizes, bubble rising velocities and void fractions were measured using void probes. Argon gas was injected through five nozzles of 4mm in diameter into Pb-Bi at two locations. The experimental conditions are the pressure of atmospheric pressure, Pb-Bi temperatures of 443K, and the flow rate of injection Ar gas is 10, 20, and 30 NL/min. The measured bubble rising velocities were distributed in the range from 1 to 3 m/s. The average velocity was about 0.6 m/s. The measured bubble chord lengths were distributed from 1mm up to 30mm. The average chord length was about 7mm. An analysis was performed by two-dimensional and two-fluid model. The experimental results were compared with the analytical results to evaluate the validity of the analytical model. Although large diameter bubbles were observed in the experiment, the drag force model for spherical bubbles performed better for simulation of the experimental result because of high surface tension force of Pb-Bi.

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