Advances in Nuclear Science and Technology

Advances in Nuclear Science and Technology

Author: Jeffery Lewins

Publisher: Springer Science & Business Media

Published: 2006-04-18

Total Pages: 180

ISBN-13: 0306470888

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Since its initiation in 1962, this series has presented authoritative reviews of the most important developments in nuclear science and engineering, from both theoretical and applied perspectives. In addition, many original contributions are included.


Convection in Fluids

Convection in Fluids

Author: Radyadour Kh. Zeytounian

Publisher: Springer Science & Business Media

Published: 2009-07-21

Total Pages: 396

ISBN-13: 9048124336

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This monograph, entirely devoted to “Convection in Fluids”, presents a unified rational approach of various convective phenomena in fluids (mainly considered as a thermally perfect gas or an expansible liquid), where the main driving mechanism is the buoyancy force (Archimedean thrust) or temperature-dependent surface tension in homogeneities (Marangoni effect). Also, the general mathematical formulation (for instance, in the Bénard problem - heated from below) and the effect of free surface deformation are taken into account. In the case of atmospheric thermal convection, the Coriolis force and stratification effects are also considered. This volume gives a rational and analytical analysis of the above mentioned physical effects on the basis of the full unsteady Navier-Stokes and Fourier (NS-F) equations - for a Newtonian compressible viscous and heat-conducting fluid - coupled with the associated initials (at initial time), boundary (lower-at the solid plane) and free surface (upper-in contact with ambiant air) conditions. This, obviously, is not an easy but a necessary task if we have in mind a rational modelling process, and work within a numerically coherent simulation on a high speed computer.


NUREG/CR.

NUREG/CR.

Author: U.S. Nuclear Regulatory Commission

Publisher:

Published: 1977

Total Pages: 88

ISBN-13:

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Internally Heated Convection and Rayleigh-Bénard Convection

Internally Heated Convection and Rayleigh-Bénard Convection

Author: David Goluskin

Publisher: Springer

Published: 2015-11-21

Total Pages: 73

ISBN-13: 3319239414

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This Brief describes six basic models of buoyancy-driven convection in a fluid layer: three configurations of internally heated convection and three configurations of Rayleigh-Bénard convection. The author discusses the main quantities that characterize heat transport in each model, along with the constraints on these quantities. This presentation is the first to place the various models in a unified framework, and similarities and differences between the cases are highlighted. Necessary and sufficient conditions for convective motion are given. For the internally heated cases only, parameter-dependent lower bounds on the mean fluid temperature are proven, and results of past simulations and laboratory experiments are summarized and reanalyzed. The author poses several open questions for future study.