Author: Wen-Quei Lin
Publisher:
ISBN:
Category : Heat-transfer media
Languages : en
Pages : 174

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Book Description

Author: Donald A. Nield
Publisher: Springer Science & Business Media
ISBN: 1461455413
Category : Science
Languages : en
Pages : 778

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Book Description
Convection in Porous Media, 4th Edition, provides a user-friendly introduction to the subject, covering a wide range of topics, such as fibrous insulation, geological strata, and catalytic reactors. The presentation is self-contained, requiring only routine mathematics and the basic elements of fluid mechanics and heat transfer. The book will be of use not only to researchers and practicing engineers as a review and reference, but also to graduate students and others entering the field. The new edition features approximately 1,750 new references and covers current research in nanofluids, cellular porous materials, strong heterogeneity, pulsating flow, and more.

Author: Aniruddha Bagchi
Publisher: Springer Science & Business Media
ISBN: 1461465761
Category : Technology & Engineering
Languages : en
Pages : 87

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Book Description
Natural Convection in Composite Fluid-Porous Domains provides a timely overview of the current state of understanding on the phenomenon of convection in composite fluid-porous layers. Natural convection in horizontal fluid-porous layers has received renewed attention because of engineering problems such as post-accident cooling of nuclear reactors, contaminant transport in groundwater, and convection in fibrous insulation systems. Because applications of the problem span many scientific domains, the book serves as a valuable resource for a wide audience.

Author: D.A. Nield
Publisher: Springer Science & Business Media
ISBN: 9780387290966
Category : Science
Languages : en
Pages : 672

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Book Description
Nonprofit organizations are suffering from the continuing economic downturn. Donations are decreasing while demand for services is growing, forcing these organizations to be increasingly efficient and effective with their funds. This book introduces the reader to the basic concepts of project management. It provides approaches and templates to help nonprofit managers quickly implement practices to help them manage their limited resources, both financial and volunteer. The book also provides a tool to help the project team determine which practices are most appropriate. The book explores how social media and other technology tools can be used to assist in the management of time-sensitive projects and shows how project portfolio management can be a tool to assist in communications with boards of directors and other governing entities. The project portfolio is a tool that development office managers can easily implement and adopt to facilitate resource assignment. Finally, the book offers three case studies of nonprofit projects that went awry and shows how project management would have assisted.

Author: Mohsen Sheikholeslami Kandelousi
Publisher: BoD – Books on Demand
ISBN: 1789238374
Category : Science
Languages : en
Pages : 246

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Book Description
Studies of fluid flow and heat transfer in a porous medium have been the subject of continuous interest for the past several decades because of the wide range of applications, such as geothermal systems, drying technologies, production of thermal isolators, control of pollutant spread in groundwater, insulation of buildings, solar power collectors, design of nuclear reactors, and compact heat exchangers, etc. There are several models for simulating porous media such as the Darcy model, Non-Darcy model, and non-equilibrium model. In porous media applications, such as the environmental impact of buried nuclear heat-generating waste, chemical reactors, thermal energy transport/storage systems, the cooling of electronic devices, etc., a temperature discrepancy between the solid matrix and the saturating fluid has been observed and recognized.

Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1461305993
Category : Science
Languages : en
Pages : 411

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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.

Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 400

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Book Description

Author: D.A. Nield
Publisher: Springer Science & Business Media
ISBN: 0387334319
Category : Technology & Engineering
Languages : en
Pages : 655

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Book Description
This new edition includes nearly 1000 new references.

Author: Yuguo Li
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages :

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Book Description
Natural convection in an enclosure containing a fluid reservoir and a porous medium saturated with the reservoir fluid, is of considerable practical and fundamental interest. The governing equations for the fluid region and the porous region are different. Matching conditions at the fluid/porous-layer interface may be defined. It is numerically advantageous to consider the governing equations for the fluid region as a special form of that for the porous region, i.e. with a porosity of unity. This introduces one set of governing equations for both the fluid flow and the porous medium, and no explicit matching conditions are needed. In addition to the resolution requirement for thermal boundaries along walls in the fluid region, there is also a large gradient of the flow variables in the fluid-porous interface. The numerical resolution requirement for the momentum equations may be different to that for the energy equation. Care should be taken to accommodate this feature. For example, convective transport of momentum may be less significant than diffusion in the laminar flow of a high Pr fluid. In contrast, for the same flow, the convective transport of heat can be very significant and a higher-order discretisation will be needed if the same grid is used for both momentum and energy equations. This will be demonstrated later. In this paper, a finite-volume method is developed for the Brinkman-extended Darcy (BD) and Brinkman-Forchheimer-extended Darcy (BFD) models. The novelty of this method is the application of a generalised higher-order convection discretisation scheme formulation on non-uniform grids. The central-differencing (CD) scheme, the second-order upwind (SOU) scheme, the quadratic upstream interpolation (QUICK) scheme, and a second-order hybrid scheme (SHYBRID) fall within the formulation. This allows a comparison of various schemes for the porous natural convection problems. The experimental data of Beckermann et al is used for comparison with the numerical results.

Author: Sadik Kakaç
Publisher: Springer Science & Business Media
ISBN: 9401132208
Category : Science
Languages : en
Pages : 1083

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Book Description
The rapid growth of literature on convective heat and mass transfer through porous media has brought both engineering and fundamental knowledge to a new state of completeness and depth. Additionally, several new questions of fundamental merit have arisen in several areas which bear direct relation to further advancement of basic knowledge and applications in this field. For example, the growth of fundamental heat transfer data and correlations for engineering use for saturated media has now reached the point where the relations for heat transfer coefficients and flow parameters are known well enough for design purposes. Multiple flow field regimes in natural convection have been identified in several important enclosure geometries. New questions have arisen on the nature of equations being used in theoretical studies, i. e. , the Validity of Darcy assumption is being brought into question; Wall effects in high and low velocity flow fields have been found to play a role in predicting transport coefficients; The formulation of transport problems in fractured media are being investigated as both an extension of those in a homogeneous medium and for application in engineering systems in geologic media and problems on saturated media are being addressed to determine their proper formulation and solution. The long standing problem of how to adequately formulate and solve problems of multi-phase heat and mass transfer in heterogeneous media is important in the technologies of chemical reactor engineering and enhanced oil recovery.