Author: William H. PlowsPublisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 190
Book Description
Numerical Studies of Laminar Free Convection in a Horizontal Fluid Layer Heated from Below
Author: William H. PlowsPublisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 190
Book Description
Numerical Study of Thermal Convection in a Fluid Layer Heated from Below
Author: Alexandre Jo©·el ChorinPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 100
Book Description
Buoyancy-induced Flows and Transport
Author: Benjamin GebhartPublisher: CRC Press
ISBN: 9780891164029
Category : Art
Languages : en
Pages : 594
Book Description
Natural Convection from Circular Cylinders
Author: Sandra K. S. BoetcherPublisher: Springer
ISBN: 3319081322
Category : Science
Languages : en
Pages : 57
Book Description
This book presents a concise, yet thorough, reference for all heat transfer coefficient correlations and data for all types of cylinders: vertical, horizontal, and inclined. This book covers all natural convection heat transfer laws for vertical and inclined cylinders and is an excellent resource for engineers working in the area of heat transfer engineering.
Scientific and Technical Aerospace Reports
Author: Numerical Modeling of Steady, Laminar Free-convective Boundary Layer Flow Beneath Heated Or Combusting Horizontal Surfaces
Author: David Elliot KeyesPublisher:
ISBN:
Category : Combustion
Languages : en
Pages : 560
Book Description
Convection in Fluids
Author: Radyadour Kh. ZeytounianPublisher: Springer Science & Business Media
ISBN: 9048124336
Category : Science
Languages : en
Pages : 396
Book Description
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.
Experimental Determination of Heat Transfer Coefficients in Water Flowing Over a Horizontal Ice Sheet
Author: Virgil J. LunardiniPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 98
Book Description
Experiments to study the melting of a horizontal ice sheet with a flow of water above it were conducted in a 35 m long refrigerated flume with a cross section of 1.2x1.2 m. Water depth, temperature, and velocity were varied as well as the temperature and initial surface profile of the ice sheet. The heat transfer regimes were found to consist of forced turbulent flow at high Reynolds numbers with a transition to free convection heat transfer. There was no convincing evidence of a forced laminar regime. The data were correlated for each of the regimes, with the Reynolds number, Re, or the Grashof number combined with the Reynolds number as Gr/Re to the 2.5 power used to characterize the different kinds of heat transfer. For water flowing over a horizontal ice sheet, the melting heat flux, for low flow velocities, was not found to drop below the value for the free convection case-488.5 W/sq m-as long as the water temperature exceeds 3.4 C. This is significant since the free convection melt values far exceed those for laminar forced convection. At the low flow velocities, the melting flux was not dependent upon the fluid temperature until the water temperature dropped below 3.4 C, when q sub c = 135.7 (Delta T). In general, the heat transfer was found to significantly exceed that of non-melting systems for the same regimes. This was attributed to increased free stream turbulence, thermal instability due to the density maximum of water near 4 C, and the turbulent eddies associated with the generation of a wavy ice surface during the melting.
Author: 
Author: