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Wednesday, July 29, 2020 | History

2 edition of Enhanced mass transport in liquid-saturated porous media due to surface shear found in the catalog.

Enhanced mass transport in liquid-saturated porous media due to surface shear

David Jeremy Richardson

Enhanced mass transport in liquid-saturated porous media due to surface shear

by David Jeremy Richardson

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Published .
Written in English


Edition Notes

Thesis (Ph.D.) - Loughborough University, 1999.

Statementby David Jeremy Richardson.
ID Numbers
Open LibraryOL18450126M

  Basic Assumptions of the Theory of Porous Media. Deformable porous media, such as liquid- and/or gas-saturated porous solid materials, can be described by the well-founded continuum-mechanical approach of the Theory of Porous Media (TPM), compare, for example, Ehlers (, ).The TPM proceeds from a formal or a virtual homogenisation of the microstructure of the . Focusing on simplified models of physical flow processes, this book develops a series of quantitative models to describe the recovery of oil and gas from hydrocarbon reservoirs (including fracking), the physics of geo-sequestration of CO2, geothermal power production, and the potential for underground contaminant dispersal in the long-term storage of nuclear waste.

@article{osti_, title = {Numerical analysis of heat and mass transfer in drying and pyrolysis of porous media}, author = {Melaaen, M C}, abstractNote = {The present work examines mathematical modeling and simulation of drying and pyrolysis of porous media. The equation system presented is basic for modeling of heat and mass transfer in porous media when drying and pyrolysis appear. A self-contained account of mixture theory is presented as a framework for describing the flow of fluids, liquids and gases, through a porous deformable matrix, incorporating both mechanical and thermal effects. The theory comprises the conservation laws of mass, momentum and energy for each constituent and the mixture properties which describe the interactions between constituents.

Chapter Summary-Modes of Mass Transfer • (Bulk) Flow Through Porous Media 1. It is the bulk movement of a fluid in a porous media due to hydraulic forces (pressure, matric attractive forces, and gravity). 2. It is described by Darcy's law (Eqn. ) which states that the volumetric flux. Bekijk het profiel van Shokoufeh Aghabozorgi op LinkedIn, de grootste professionele community ter wereld. Shokoufeh Aghabozorgi heeft 3 functies op zijn of haar profiel. Bekijk het volledige.


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Enhanced mass transport in liquid-saturated porous media due to surface shear by David Jeremy Richardson Download PDF EPUB FB2

Enhanced mass transport in liquid-saturated porous media due to surface shear Author: Richardson, David Jeremy ISNI: Awarding Body: Loughborough University Current Institution: Loughborough University Date of Award: Availability of Full Text: Author: David Jeremy Richardson.

Enhanced mass transport in liquid-saturated porous media due to surface shear. By D.J. Richardson. Abstract. SIGLEAvailable from British Library Document Supply Centre-DSC:DXN / BLDSC - British Library Document Supply CentreGBUnited KingdoAuthor: D.J. Richardson.

where h m is the mass transfer coefficient, L c is the characteristic length, and D is the mass diffusivity. The Nusselt and Sherwood numbers represent the effectiveness of heat and mass convection at the surface of a human body, respectively.

For forced convection of blood flow inside a vessel, there exists an important analogy between the Nusselt number, which depends on the Reynolds and the. Transport in Biological Media is a solid resource of mathematical models for researchers across a broad range of scientific and engineering problems such as the effects of drug delivery, chemotherapy, or insulin intake to interpret transport experiments in areas of cutting edge biological research.

A wide range of emerging theoretical and. Pool boiling heat-transfer measurements were made using a mm o.d. plain copper tube and three copper enhanced surfaces: a Union Carbide High Flux surface, a Hitachi Thermoexcell-E surface. Phase change in porous media occurs in the confines of the pore space but it is driven by the application of a supersaturation at the external boundaries of the porous medium.

Intermolecular forces between the fluids and the pore surface and the transport of mass or heat within the pore structure, therefore, determine phase equilibria and.

The focus of this work is on the rate of interfacial mass transfer at the interface between two immiscible fluids in porous media, subjected to variations in velocity and first-order consumption.

magnetic field acts perpendicularly to the porous surface which absorbs the polar fluid with a suction velocity varying with time Recently,() investigated the heat and mass transfer effects on MHD flow of viscous incompressible and electrically conducting fluid through a non homogeneous porous.

The species diffusivity D k itself is an intrinsic property of the gas mixture. However, in order to take into consideration the effect of the porous matrix on the diffusive transport, it is usually replaced by the effective diffusivity, D eff, that may include the effect of the.

This book presents a compilation of state-of-the art studies on gas and vapor transport processes in porous and fractured media. A broad set of models and processes are presented, including advection/diffusion, the Dusty Gas Model, enhanced vapor diffusion, phase change, coupled processes, solid/vapor sorption, and vapor-pressure lowering.

Porous media analysis is used to model the heat and mass transfer which occurs during the storage of agricultural products such as fruits, vegetables and grains. Transport of solutes in porous media is of interest in ground water hydrology, disposal of wastes, petroleum reservoir.

Fluid flow and heat transfer in porous media has been the subject of several investigations in the recent years [1][2] [3] [4][5] due to its wide applications in engineering fields such as heat. Due to the inability to supply liquid to the surface, the smooth surface could not maintain this liquid film and thus the dry-out area expanded.

The smooth surface was completely dry from t = s to s before the liquid built up at the inlet reflushed the channel at t = s. This chapter discusses the impact of diffusion and dispersion mechanisms on transport of chemicals in chemically enhanced oil recovery processes.

Dispersion is an important issue in chemical processes in porous media; the chapter introduces diffusion in bulk phase and porous medium, and presents a statistical representation of diffusion.

For industry users, it is intended for those working on biofluids and medicine as well as engineering companies dealing with heat transfer in laminar flows, microfluidic devices, flows in porous media (filters, sand, rocks, etc. becker06 10 Becker, T. Appendix A provides a flowchart for the measurement of phase stability of gas.

@article{osti_, title = {Mass Transport within Soils}, author = {McKone, Thomas E}, abstractNote = {Contaminants in soil can impact human health and the environment through a complex web of interactions.

Soils exist where the atmosphere, hydrosphere, geosphere, and biosphere converge. Soil is the thin outer zone of the earth's crust that supports rooted plants and is the product of. It was found that an increase of velocity slip reduced the momentum boundary layer thickness and enhanced the mass transfer.

of mass transport in porous media go back to the end of last. Simultaneous existence of solute gradients along with temperature gradients in a double diffusive system is favorable to the onset of salt finger convection and this phenomenon has been investigate.

Conference topics include but not limited to: Heat and Mass transfer in Biomedical devices Transport Phenomena in Porous Media Enhanced Oil Recovery Waste. Porous Media Applications in the Energy Sector. In this section, the above-reviewed knowledge on gas and liquid flow at micro- to nanoscale is used to critically examine the modeling gaps in four different porous media applications from the energy sector and how that can be improved.

A capillary porous structure with partial heating and evaporation on its upper surface is shown in Fig. PThe entire porous structure is saturated with liquid from the bottom surface (y = 0), which is connected to a pool for liquid supply.A constant heat flux, \(q_{0}^{\prime \prime }\), is applied over part of the upper surface (0.1) Shear dispersion in double-porosity and double-permeability systems 2) Enhanced oil recovery (EOR) in sandstone and carbonate reservoirs 3) Gas diffusivity in heavy oil and bitumen 4) Theoretical study about specific phenomena in fractured porous media (including capillary continuity and.

Despite the progress made on renewable energy, oil and gas remains the world’s primary energy source. Meanwhile, large amounts of oil deposits remain unrecovered after application of traditional oil recovery methods.

Chemical enhanced oil recovery (EOR) has been adjudged as an efficient oil recovery technique to recover bypassed oil and residual oil trapped in the reservoir.