Download or read book Numerical Study of Multicellular Natural Convection in Vertical Cavities written by Yee Lee and published by . This book was released on 1981 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental and Numerical Study of Natural Convection in Tall Cavities written by N. Z. Ince and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Numerical Study of Natural Convection in Upward Facing Open Cavities written by Rodney C. Schmidt and published by . This book was released on 1984 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Natural Convection and Conduction in a Vertical Annulus with a Concentric Baffle written by Mark J. Fishbaugher and published by . This book was released on 1988 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical and numerical study of steady-state laminar natural convection and conduction has been performed for an enclosure between concentric vertical cylinders. The inner and outer cylinders were isothermal, and the connecting top and bottom walls were adiabatic. A concentric baffle was included in the annulus, and the flow field and local heat transfer were investigated. The parameters of most interest in this study were the relative conductivity of the baffle and the properties of the fluid. A wide range of relative conductivities, Prandtl numbers, and Rayleigh numbers was investigated, assuming a particular cavity geometry with and without the baffle. The effect of a finite conductivity wall on the outside of the vertical annulus as well as the effect of high aspect ratio were also studied for low Prandtl number fluids (liquid metals). Results show that the relative conductivity of the concentric baffle affects the structure of the flow and the local Nusselt numbers. With increasing Rayleigh number, this effect diminishes. Multicellular flow is observed in each of the annular channels with increasing baffle conductivity ratio. A relatively low conductivity baffle promotes uniform channel flow in the annuli at lower Rayleigh numbers. The heat transfer results show that the baffle has an insulating effect at high Rayleigh numbers regardless of its conductivity. For the annulus with an outside wall of finite conductivity, results show that the relative conductivity of the wall is an important variable in determining the temperature of the rest of the domain. However, the conductivity of the outer wall had little effect on the structure of the flow field or the maximum velocities. For a higher aspect ratio cavity without an outside wall, the maximum velocities are higher while the overall heat transfer rates are found to be lower. This can be attributed to cavity geometry and the mechanisms for heat transfer above and below the baffle.
Download or read book A Numerical Study of Natural Convection in an Open Cavity written by V. Venkatakrishnan and published by . This book was released on 1983 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NATURAL CONVECTION IN CAVITIES WITH INTERNAL FINS written by SANKAR GANESH SUBRAMANIAN and published by LAP Lambert Academic Publishing. This book was released on 2010-11-30 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical study has been carried out in differentially heated square cavities, which are formed by horizontal adiabatic walls and vertical isothermal walls. Three cases such as Natural convection in a cavity without any fins, with one fin and with two fins each placed equidistant from the center on the hot wall have been considered. Heat transfer by natural convection is studied by numerically solving equations of continuity, momentum and energy. A parametric study is carried out using the following parameters: Rayleigh number from 104 to 107, Prandtl number of 0.729, internal fin length of 0.10 m. A total of 24 cases have been considered and plotted using Fluent.
Download or read book Multicellular Natural Convection in a Narrow Vertical Slot written by David C. Jarman and published by . This book was released on 1989 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this thesis is to investigate the influence of Prandtl number on steady, or unsteady, flow behavior in a narrow vertical slot. The focus is to examine the effects of Prandtl number on natural convective flows, and the formation of single and multiple cells, over a range of Prandtl numbers from Pr = 0 to Pr = infinity. Both numerical as well as analytical approaches are undertaken in studying these phenomena. By assuming a large Rayleigh number and small gap, the two-dimensional Navier-Stokes equations are reduced to the simpler boundary-layer form. Boundary-layer equations are then derived for both the low (Pr or = 0.1) and high (Pr or = 10) Prandtl number regimes, including the limiting conditions of Pr approaches limit of 0 and Pr approaches limit of infinity. Furthermore, the equations obtained for the low Prandtl number regime also hold any finite Prandtl number in the range 0
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Numerical Study of Natural Convection in a Vertical Annular Porous Layer written by C. E. Hickox and published by . This book was released on 1982 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Convective Heat and Mass Transfer in Porous Media written by Sadik Kakaç and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1083 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book A Numerical Study of Natural Convection in Shallow Cavities written by Jerry E. Drummond and published by . This book was released on 1981 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Solutions for a Comparison Problem on Natural Convection in an Enclosed Cavity written by I. P. Jones and published by . This book was released on 1981 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Building Heat Transfer written by Morris Grenfell Davies and published by John Wiley & Sons. This book was released on 2004-06-25 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: A third or more of the energy consumption of industrialized countries is expended on creating acceptable thermal and lighting conditions in buildings. As a result, building heat transfer is keenly important to the design of buildings, and the resulting analytical theory forms the basis of most design procedures. Analytical Theory of Building Heat Transfer is the first comprehensive reference of its kind, a one-volume compilation of current findings on heat transfer relating to the thermal behavior of buildings, forming a logical basis for current design procedures.
Download or read book Convection in Porous Media written by D.A. Nield and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book we have tried to provide a user-friendly introduction to the topic of convection in porous media. We have assumed that the reader is conversant with the basic elements of fluid mechanics and heat transfer, but otherwise the book is self-contained. Only routine classical mathematics is employed. We hope that the book will be useful both as a review (for reference) and as a tutorial work (suitable as a textbook in a graduate course or seminar). This book brings into perspective the voluminous research that has been performed during the last two decades. The field has recently exploded because of worldwide concern with issues such as energy self-sufficiency and pollution of the environment. Areas of application include the insulation of buildings and equipment, energy storage and recovery, geothermal reservoirs, nuclear waste disposal, chemical reactor engineering, and the storage of heat-generating materials such as grain and coal. Geophysical applications range from the flow of groundwater around hot intrusions to the stability of snow against avalanches.
Download or read book Materials Structure and Heat and Mass Transfer written by Mosbah Zidani and published by Trans Tech Publications Ltd. This book was released on 2021-01-11 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special topic volume with invited peer-reviewed papers only
Download or read book A Numerical Study of the Turbulent Free Convection in Rectangular Cavities written by Abdelouahab Abrous and published by . This book was released on 1988 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
