Guide Transport Phenomena in Porous Media

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Investigations are carried out treating the whole macroscopic porous medium as an equivalent homogeneous medium, whose governing equations are averaged over a Representative Elementary Volume REV.

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Governing equations are coupled with the microscopic problem scales by means of the so-called closing coefficients. View PDF. Save to Library. Create Alert.

Transport Phenomena in Porous Media II | D&R - Kültür, Sanat ve Eğlence Dünyası

Share This Paper. Designed for use in graduate courses in various disciplines involving fluids in porous materials, and as a reference for practitioners in the field, the text includes exercises and practical applications while avoiding the complex math found in other books, allowing the reader to focus on the central elements of the topic. Covering general porous media applications, including the effects of temperature and particle migration, and placing an emphasis on energy resource development, the book provides an overview of mass, momentum, and energy conservation equations, and their applications in engineered and natural porous media for general applications.

Offering a multidisciplinary approach to transport in porous media, material is presented in a uniform format with consistent SI units. An indispensable resource on an extremely wide and varied topic drawn from numerous engineering fields, Porous Media Transport Phenomena includes a solutions manual for all exercises found in the book, additional questions for study purposes, and PowerPoint slides that follow the order of the text.

If you do not receive an email within 10 minutes, your email address may not be registered, and you may need to create a new Wiley Online Library account.

If the address matches an existing account you will receive an email with instructions to retrieve your username. Skip to Main Content. First published: 9 June A second starting point is the system of equations valid for a homogeneous fluid medium.

A study of reactive transport phenomena in porous media

It can be generalized to a multiphase system such as a porous medium by introducing source terms and effective medium properties. In each approach, the model carries a large number of parameters that are sensitive to the pore structure, though to a lesser extent on the thermophysical properties of the constituent media. Success in modeling transport in porous media is linked to careful parameter estimation from experiments. This step is expected to become critical in multiscale porous media where the pore scales span several orders of magnitude.

The one-equation model and two-equation model of convective heat transfer and transport phenomena with chemical reactions are subsequently discussed in the chapter. Transport in porous media can be analyzed at various scales.

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Mesoscale formulations, such as lattice Boltzmann method LBM , play an important role in deciphering the pore-scale flow, heat and mass transfer. The present chapter uses LBM to quantify the mass and momentum transport within the gas diffusion layer GDL of polymer electrolyte membrane fuel cells.

The chapter paves the way for connecting the mesoscopic information with the macroscopic physics of fuel cells.

Modeling Transport Phenomena in Porous Media with Applications

In recent years, lithium ion batteries are identified as a promising way for storing electrical energy. Electrochemical phenomena as well as thermal management of lithium ion batteries are greatly influenced by heat and mass transport in the porous electrodes. Present chapter uses direct numerical simulation DNS to quantify the species transport through the composite electrodes of lithium ion batteries.

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The simulations also capture the irreversibilities within the batteries leading to heat generation and consequent heat transfer. The chapter emphasizes the importance of DNS in understanding the transport phenomena and electrochemistry within a lithium ion battery. Transport through natural and artificial porous media plays an important role in biological systems.

Examples include flow in plants through xylem and phloem as well as transport in extracellular space in the central nervous system of animals. Present chapter deals with the dynamics of blood flow through porous media. Focus of this chapter includes the hemodynamic modeling and simulations through coil-embolized blood vessels.

Transport Phenomena in Porous Media II

While the mathematical model incorporates realistic blood rheology and the pulsatile nature of blood flows, the simulations are conducted over a patient-specific, three-dimensional domain. The study shows that the coil embolization reduces the wall shear considerably, leaving the wall pressure largely unaffected. A stack of meshes assembled to form a regenerator of a Stirling cycle has been analyzed for determining flow distribution and heat transfer.

A non-Darcy, thermal nonequilibrium model is driven by pulsatile flow with hot and cold fluid alternately going past the mesh in opposite directions.