Results 251 to 260 of about 269,699 (297)
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2004
We now turn our attention to the results that constitute the core of modern research on convective heat and mass transfer through porous media. Our objective is not only to organize the compact presentation of these results, but also to explain their origin.
Adrian Bejan +4 more
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We now turn our attention to the results that constitute the core of modern research on convective heat and mass transfer through porous media. Our objective is not only to organize the compact presentation of these results, but also to explain their origin.
Adrian Bejan +4 more
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Flow in fractured porous media
Water Resources Research, 1977The equations governing the flow of fluid through fractured porous media are derived. These equations consist of Darcy's law for fluid flow in the primary pores, equations of motion for fluid flow in the fractures, and two continuity equations. The system of equations is coupled by the interaction of fluid in the primary pores with fluid in the ...
James O. Duguid, P. C. Y. Lee
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2022
Abstract The process of fluid invasion in a porous medium is often irregular and characterized by avalanches. In imbibition, one typically observes a self-affine front and avalanches are related to those observed in interface depinning.
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Abstract The process of fluid invasion in a porous medium is often irregular and characterized by avalanches. In imbibition, one typically observes a self-affine front and avalanches are related to those observed in interface depinning.
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2012
The fundamentals of single phase flow within porous media are presented in this chapter. Analytical solutions for the flow field in granular media are obtained using cell models of various geometries. Macroscopic approaches (Darcy law and its extensions) as well as numerically obtained flow fields in stochastically constructed granular structures are ...
Frank A. Coutelieris +1 more
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The fundamentals of single phase flow within porous media are presented in this chapter. Analytical solutions for the flow field in granular media are obtained using cell models of various geometries. Macroscopic approaches (Darcy law and its extensions) as well as numerically obtained flow fields in stochastically constructed granular structures are ...
Frank A. Coutelieris +1 more
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Nonlinear flow in porous media
Physical Review E, 1998The flow of an incompressible liquid at nonzero Reynolds number Re in a two-dimensional model porous medium is studied via numerical simulation. The geometry is a random array of cylinders of square cross section and spectral element methods are used. We find a transition from linear Darcy flow at vanishing Re, to a cubic transitional regime at low Re,
Sergio Rojas, Joel Koplik
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2002
Introduction Fluids such as water, steam, petroleum, and natural gas often migrate through the Earth's crust. If these flows occur through open fractures, they can be studied using the channel flow theory developed in Chapter 6. In many cases, however, flows in the Earth's crust occur through a matrix of interconnecting passages provided by large ...
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Introduction Fluids such as water, steam, petroleum, and natural gas often migrate through the Earth's crust. If these flows occur through open fractures, they can be studied using the channel flow theory developed in Chapter 6. In many cases, however, flows in the Earth's crust occur through a matrix of interconnecting passages provided by large ...
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Flow in simulated porous media
International Journal of Multiphase Flow, 1990Two average statistical properties of the pore space of Fontainebleau sandstones are measured on thin sections. They are used to generate fictitious porous media which share the same statistical properties as the real ones; the simulation process is thoroughly presented and discussed.
P.M. Adler, C.G. Jacquin, J.A. Quiblier
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Developments and Applications of Non-Newtonian Flows, 1995
Abstract The problem of foam flow in porous media is treated as a creeping of bubble trains through effectively smooth capillaries with periodically varying cross-sectional areas. It is shown that the competition between capillary forces, elastic forces and drag forces leads to the flow rule which resembles the equation of motion of ...
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Abstract The problem of foam flow in porous media is treated as a creeping of bubble trains through effectively smooth capillaries with periodically varying cross-sectional areas. It is shown that the competition between capillary forces, elastic forces and drag forces leads to the flow rule which resembles the equation of motion of ...
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1988
This paper presents the physical background corresponding to hands on experiments of displacements of fluids though porous media shown during the conference.
Roland Lenormand, Gerard Daccord
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This paper presents the physical background corresponding to hands on experiments of displacements of fluids though porous media shown during the conference.
Roland Lenormand, Gerard Daccord
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Multiphase Flow in Porous Media
1985We discuss in detail the observable consequences of percolation models of immiscible displacement in porous media, with emphasis on the critical behavior. At the microscopic level these include the fractal nature of the non-wetting fluid configuration in drainage, and the size distribution of the residual non-wetting clusters in imbibition.
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