Numerical Modeling of Diffusion in Fractured Media for Gas Injection and Recycling Schemes

2006 ◽  
Author(s):  
Hussein Hoteit ◽  
Abbas Firoozabadi
Keyword(s):  
Numerical Modeling ◽  
Gas Injection ◽  
Fractured Media

Numerical Modeling of Diffusion in Fractured Media for Gas-Injection and -Recycling Schemes

SPE Journal ◽  
2009 ◽  
Vol 14 (02) ◽  
pp. 323-337 ◽  
Author(s):  
Hussein Hoteit ◽  
Abbas Firoozabadi
Keyword(s):  
Numerical Modeling ◽  
Gas Injection ◽  
Fractured Media

Numerical modeling of seismic amplitudes for non‐vertical fractured media

2002 ◽  
Author(s):  
Jaime Ramos‐Martínez ◽  
Carlos Calderón‐Macías ◽  
Raúl Cabrera‐Garzón
Keyword(s):  
Numerical Modeling ◽  
Fractured Media ◽  
Seismic Amplitudes

Paradoxes of Heat Transfer on a Permeable Wall

2010 ◽  
Author(s):  
A. I. Leontiev ◽  
V. G. Lushchik ◽  
A. E. Yakubenko
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Numerical Modeling ◽  
Turbulent Boundary Layer ◽  
Prandtl Number ◽  
Wall Temperature ◽  
Gas Injection ◽  
Gas Mixtures ◽  
Permeable Wall ◽  
Gas Temperature

Numerical modeling of a turbulent boundary layer on a permeable wall with gas injection is performed. New effects are discovered. It is shown in particular that the wall temperature in the region of the gas film may be lower than the injected gas temperature. This effect is especially essential for gas mixtures with low values of the Prandtl number.

2D numerical modeling of naturally fractured media using finite elements with high aspect ratio

2017 ◽  
Author(s):  
Pedro Rogério Cleto ◽  
Osvaldo Luís Manzoli ◽  
Heber Agnelo Antonel Fabbri ◽  
Eduardo Alexandre Rodrigues ◽  
José Henrique Krähenbühl Ambiel
Keyword(s):  
Numerical Modeling ◽  
Finite Elements ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Fractured Media ◽  
Naturally Fractured

scholarly journals Numerical Modeling of Equal and Differentiated Gas Injection in Ladles: Effect on Mixing Time and Slag Eye

Processes ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 917
Author(s):  
Luis E. Jardón-Pérez ◽  
Carlos González-Rivera ◽  
Marco A. Ramirez-Argaez ◽  
Abhishek Dutta
Keyword(s):  
Numerical Modeling ◽  
Numerical Model ◽  
Physical Model ◽  
Flow Rate ◽  
Gas Flow ◽  
Mixing Time ◽  
Gas Injection ◽  
Steel Slag ◽  
Gas Flow Rate ◽  
Slag Thickness

Ladle refining plays a crucial role in the steelmaking process, in which a gas stream is bubbled through molten steel to improve the rate of removal of impurities and enhance the transport phenomena that occur in a metallurgical reactor. In this study, the effect of dual gas injection using equal (50%:50%) and differentiated (75%:25%) flows was studied through numerical modeling, using computational fluid dynamics (CFD). The effect of gas flow rate and slag thickness on mixing time and slag eye area were studied numerically and compared with the physical model. The numerical model agrees with the physical model, showing that for optimal performance the ladle must be operated using differentiated flows. Although the numerical model can predict well the hydrodynamic behavior (velocity and turbulent kinetic energy) of the ladle, there is a deviation from the experimental mixing time when using both equal and differentiated gas injection at a high gas flow rate and a high slag thickness. This is probably due to the insufficient capture of the velocity field near the water–oil (steel–slag) interface and slag emulsification by the numerical model, as well as the complicated nature of correctly simulating the interaction between both gas plumes.

Numerical modeling of coupled fluid flow and thermal and reactive biogeochemical transport in porous and fractured media

2009 ◽  
Vol 14 (1) ◽  
pp. 149-170 ◽  
Author(s):  
Gour-Tsyh Yeh ◽  
Yilin Fang ◽  
Fan Zhang ◽  
Jiangtao Sun ◽  
Yuan Li ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Fluid Flow ◽  
Fractured Media
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