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An Investigation Of Surface Roughness Shape Effects On Turbulent Flow And Heat Transfer
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Book Synopsis An Investigation of Surface Roughness Shape Effects on Turbulent Flow and Heat Transfer by : James Whitley Garner
Download or read book An Investigation of Surface Roughness Shape Effects on Turbulent Flow and Heat Transfer written by James Whitley Garner and published by . This book was released on 1990 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigations of Surface Roughness Effects on Turbulent Flow and Heat Transfer by :
Download or read book Investigations of Surface Roughness Effects on Turbulent Flow and Heat Transfer written by and published by . This book was released on 1990 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this research program was to investigate the effects of surface roughness on turbulent boundary layer heat transfer by obtaining accurate, comprehensive, quality heat transfer data for zero pressure gradient incompressible air flow over constant temperature test surfaces with well-defined surface roughness geometries. Knowledge gained from the experimental investigation was used to improve and extend the roughness energy transport model used in the discrete element prediction method, thus enhancing and expanding the capability to predict the effects of surface roughness on turbulent flow and heat transfer. Fluid dynamics and heat transfer data for turbulent boundary layer flow over a smooth and five rough surfaces were taken in the Turbulent Heat Transfer Test Facility (THTTF) for x-Reynolds numbers ranging up to 10,000,000. The smooth wall data was used for qualification of the THTTF and provided base line data for comparison with the data from rough surfaces.
Book Synopsis An Investigation of the Influence of a Step Change in Surface Roughness on Turbulent Flow and Heat Transfer by : John Keith Taylor
Download or read book An Investigation of the Influence of a Step Change in Surface Roughness on Turbulent Flow and Heat Transfer written by John Keith Taylor and published by . This book was released on 1991 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement and Calculation of Surface Roughness Effects on Turbulent Flow and Heat Transfer by : Mohammad Hosein Hosni
Download or read book Measurement and Calculation of Surface Roughness Effects on Turbulent Flow and Heat Transfer written by Mohammad Hosein Hosni and published by . This book was released on 1989 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental investigation of the effects of surface roughness on compressible turbulent boundary layer skin friction and heat transfer by : Frank Levi Young
Download or read book Experimental investigation of the effects of surface roughness on compressible turbulent boundary layer skin friction and heat transfer written by Frank Levi Young and published by . This book was released on 1965 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Surface Roughness Effects on Turbulent Boundary Layer Flow and Heat Transfer by : Hugh W. Coleman
Download or read book An Experimental Study of Surface Roughness Effects on Turbulent Boundary Layer Flow and Heat Transfer written by Hugh W. Coleman and published by . This book was released on 1987 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the first year of this program the calibration and qualification of the turbulent heat transfer test apparatus were completed for heat transfer measurements. The heat transfer data taken for zero pressure gradient, constant wall temperature, incompressible flow over a smooth wall agree with standard, accepted data sets for such conditions within the scatter of the standard data.
Book Synopsis Experimental Investigation of Surface Roughness Effects on Heat Transfer from Discretely-heated Protruding Surfaces by : Mesfin Wolde Medhin
Download or read book Experimental Investigation of Surface Roughness Effects on Heat Transfer from Discretely-heated Protruding Surfaces written by Mesfin Wolde Medhin and published by . This book was released on 1994 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Pressure and Heat Transfer Tests on Surface Roughness Elements with Laminar and Turbulent Boundary Layers Final Report by :
Download or read book Analysis of Pressure and Heat Transfer Tests on Surface Roughness Elements with Laminar and Turbulent Boundary Layers Final Report written by and published by . This book was released on 1966 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Theoretical Analysis of the Effects of Surface Roughness on the Turbulent Boundary Layer in Compressible Flow with Zero Heat Transfer by : F. W. Fenter
Download or read book A Theoretical Analysis of the Effects of Surface Roughness on the Turbulent Boundary Layer in Compressible Flow with Zero Heat Transfer written by F. W. Fenter and published by . This book was released on 1955 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Generalized Roughness Effects on Turbulent Boundary Layer Heat Transfer. A Discrete Element Predictive Approach for Turbulent Flow Over Rough Surfaces by : H. W. Coleman
Download or read book Generalized Roughness Effects on Turbulent Boundary Layer Heat Transfer. A Discrete Element Predictive Approach for Turbulent Flow Over Rough Surfaces written by H. W. Coleman and published by . This book was released on 1983 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discrete element model for turbulent flow over rough surfaces has been rigorously derived from basic principles. This model includes surface roughness effects as a constituent part of the partial differential equations which describe momentum and energy transport in turbulent flows. The model includes the necessary empirical information on the interaction between the roughness elements and the flow around and between the elements in a general way which does not require experimental data on each specific surface. This empirical information is input via algebraic models for the local element drag coefficient and Nusselt number. These models have been calibrated by comparison with base data sets from surfaces with three-dimensional (distributed) roughness elements. Calculations using the present discrete element model are compared with experimental data from 118 separate experimental runs. The results of these comparisons range from good to excellent. The calculations are shown to compare equally well with both transitionally rough turbulent flow and fully rough turbulent flow without modification of the roughness model. In the course of the present work it was discovered that the definitive data set of Schlichting is flawed. Corrected values are presented for this data set.
Book Synopsis The Effects of Surface Roughness on the Heat Transfer and Friction Coefficients for Turbulent Boundary Layer Flow by : D. R. Croft
Download or read book The Effects of Surface Roughness on the Heat Transfer and Friction Coefficients for Turbulent Boundary Layer Flow written by D. R. Croft and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of the Effects of Roughness and Curvature on Heat Transfer in Turbulent Boundary Layers by : Sylvia Huebbe-Walker
Download or read book An Experimental Study of the Effects of Roughness and Curvature on Heat Transfer in Turbulent Boundary Layers written by Sylvia Huebbe-Walker and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Fluid Flow and Heat Transfer Induced by Square-ribbed Surface Roughness in Concentric Annuli by : Soo W. Ahn
Download or read book Turbulent Fluid Flow and Heat Transfer Induced by Square-ribbed Surface Roughness in Concentric Annuli written by Soo W. Ahn and published by . This book was released on 1990 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study demonstrates that certain artificial roughness elements may be used to enhance heat transfer rates with advantages from the overall efficiency point of view.
Book Synopsis Transport Phenomena in Heat and Mass Transfer by : J.A. Reizes
Download or read book Transport Phenomena in Heat and Mass Transfer written by J.A. Reizes and published by Elsevier. This book was released on 2012-12-02 with total page 833 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical, numerical and experimental studies of transport phenomena in heat and mass transfer are reported in depth in this volume. Papers are presented which review and discuss the most recent developments in areas such as: Mass transfer; Cooling of electronic components; Phase change processes; Instrumentation techniques; Numerical methods; Heat transfer in rotating machinery; Hypersonic flows; and Industrial applications. Bringing together the experience of specialists in these fields, the volume will be of interest to researchers and practising engineers who wish to enhance their knowledge in these rapidly developing areas.
Book Synopsis Turbulent Boundary Layer Heat Transfer by : Michael L. Finson
Download or read book Turbulent Boundary Layer Heat Transfer written by Michael L. Finson and published by . This book was released on 1981 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Reynolds stress model for turbulent boundary layers is used to study surface roughness effects on skin friction and heat transfer. The issues of primary interest are the influence of roughness character (element shape and spacing) and the nature of roughness effects at high Mach numbers. Computations based on the model compare satisfactorily with measurements from experiments involving variations in roughness character, in low speed and modestly supersonic conditions. The more limited data base at hypersonic Mach numbers is also examined with reasonable success, although no quantitative explanation is offered for the reduction of heat transfer with increasing roughness observed by Holden at Me = 9.4. The present calculations indicate that the mean velocity is approximately uniform over much of the height range below the tops of the elements, y less than or equal to k. With this constant 'roughness velocity, ' it is simple to estimate the form drag on the elements. This roughness velocity has been investigated by systematically exercising the present model over ranges of potential parameters. The roughness velocity is found to be primarily a function of the projected element frontal area per unit surface area, thus providing a new and simple method for predicting roughness character effects. The model further suggests that increased boundary layer temperatures should be generated by roughness at high edge Mach numbers, which would tend to reduce skin friction and heat transfer, perhaps below smooth wall levels. (Author).
Book Synopsis Turbulent Fluid Flow and Heat Transfer Induced by Square-ribbed Surface Roughness in Concentric Annuli by : Soo W. Ahn
Download or read book Turbulent Fluid Flow and Heat Transfer Induced by Square-ribbed Surface Roughness in Concentric Annuli written by Soo W. Ahn and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study demonstrates that certain artificial roughness elements may be used to enhance heat transfer rates with advantages from the overall efficiency point of view.
Book Synopsis Boundary Layer Transition and Surface Roughness Effects in Hypersonic Flow by : Michael S. Holden
Download or read book Boundary Layer Transition and Surface Roughness Effects in Hypersonic Flow written by Michael S. Holden and published by . This book was released on 1981 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
