Download or read book Streamwise Curvature Effects on Turbulent Wall Jet Heat Transfer written by J. P. Lozon and published by . This book was released on 1971 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Streamwise Concave Curvature on Turbulent Boundary Layer Structure written by Albert H. Jeans and published by . This book was released on 1982 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concave curvature has a relatively large, unpredictable effect on turbulent boundary layers. Some, but not all previous studies suggest that a large-scale, stationary array of counter-rotating vortices exists within the turbulent boundary layer on a concave wall. The objective of the present study was to obtain a qualitative model of the flow field in order to increase our understanding of the underlying physics. A large free-surface water channel was constructed in order to perform a visual study of the flow. Streamwise components of mean velocity and turbulence intensity were measured using a hot film anemometer. The upstream boundary was spanwise uniform with a momentum thickness to radius of curvature of 0.05. Compared to flat wall flow, large-scale, randomly distributed sweeps and ejections were seen in the boundary layer on the concave wall. The sweeps appear to suppress the normal mechanism for turbulence production near the wall by inhibiting the bursting process. The ejections appear to enhance turbulence production in the outer layers as the low speed fluid convected from regions near the wall interacts with the higher speed fluid farther out. The large-scale structures did not occur at fixed spanwise locations, and could not be called roll cells or vortices. (Author).
Download or read book Turbulent Boundary Layer Heat Transfer Experiments written by and published by . This book was released on 1982 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Boundary Layer Heat Transfer Experiments written by T. W. Simon and published by . This book was released on 1982 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Boundary Layer Heat Transfer Experiments written by T. W. Simon and published by . This book was released on 1980 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements have been made of the heat transfer rates through turbulent and transitional boundary layers on an isothermal, convexly curved wall and downstream flat plate.
Download or read book Free stream Turbulence and Concave Curvature Effects on Heated Transitional Boundary Layers written by Jungho Kim and published by . This book was released on 1990 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Heat Transfer and Fluid Dynamics of Concave Surface Curvature written by Peter Bradshaw and published by . This book was released on 1988 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Curvature and Freestream Turbulence Effects on Heat Transfer and Fluid Mechanics Int Transitionalboundary Layer Flows written by Ding Wang and published by . This book was released on 1984 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Streamline Curvature on Turbulent Flow written by Peter Bradshaw and published by . This book was released on 1973 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Streamline curvature in the plane of the mean shear produces large changes in the turbulence structure of shear layers, usually an order of magnitude more important than normal pressure gradients and other terms in the mean-motion equations for curved flows. The effects on momentum and heat transfer in boundary layers are noticeable on typical wing sections and are very important on highly-cambered turbomachine blades: turbulence may be nearly eliminated on highly-convex surfaces, while on highly-concave surfaces momentum transfer by quasi-steady longitudinal vortices dominates the ordinary turbulence processes. The greatly enhanced mixing rates of swirling jets and the characteristic non-turbulent cores of trailing vortices are also consequences of the effects of streamline curvature on the turbulence structure. A progress report, comprises a review of current knowledge, a discussion of methods of predicting curvature effects, and a presentation of principles for the guidance of future workers.
Download or read book Observations of the Effects of High Free stream Turbulence Levels on the Heat Transfer to a Concavely Curved Turbulent Boundary Layer written by Stanford University. Thermosciences Division. Thermosciences Division and published by . This book was released on 1989 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Heat Transfer Fluid Mechanics and Thermodynamics 1993 written by Matthew D. Kelleher and published by . This book was released on 1993 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Modelling the Effects of Streamline Curvature on Turbulent Shear Flows written by Bassam A. Younis and published by . This book was released on 1984 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Free Stream Turbulence and Concave Curvature Effects on Heated Transitional Boundary Layers written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of the transition process on flat-plate and concave curved-wall boundary layers for various free-streem turbulence levels was performed. Where possible, sampling according to the intermittency function was made. Such sampling allowed segregation of the signal into two types of behavior: laminar-like and turbulent-like. The results from the investigation are discussed. Documentation is presented in two volumes. Volume one contains the text of the report including figures and supporting appendices. Volume two contains data reduction program listings and tabulated data. Kim, J. and Simon, T. W. Unspecified Center BOUNDARY LAYER TRANSITION; CONCAVITY; FLAT PLATES; FREE FLOW; TURBULENCE EFFECTS; TURBULENT FLOW; WALL FLOW; CURVATURE; HEAT TRANSFER; SAMPLING; TURBULENCE...
Download or read book On the effect of streamwise wall curvature on compressible turbulent boundary layers written by J. C. Rotta and published by . This book was released on 1966 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Heat Transfer written by and published by . This book was released on 2007 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vorticity and Vortex Dynamics written by Jie-Zhi Wu and published by Springer Science & Business Media. This book was released on 2007-04-20 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive and intensive monograph for scientists, engineers and applied mathematicians, as well as graduate students in fluid dynamics. It starts with a brief review of fundamentals of fluid dynamics, with an innovative emphasis on the intrinsic orthogonal decomposition of fluid dynamic process, by which one naturally identifies the content and scope of vorticity and vortex dynamics. This is followed by a detailed presentation of vorticity dynamics as the basis of later development. In vortex dynamics part the book deals with the formation, motion, interaction, stability, and breakdown of various vortices. Typical vortex structures are analyzed in laminar, transitional, and turbulent flows, including stratified and rotational fluids. Physical understanding of vertical flow phenomena and mechanisms is the first priority throughout the book. To make the book self-contained, some mathematical background is briefly presented in the main text, but major prerequisites are systematically given in appendices. Material usually not seen in books on vortex dynamics is included, such as geophysical vortex dynamics, aerodynamic vortical flow diagnostics and management.
Download or read book The Effects of Surface Curvature on Heat Transfer Through a Turbulent Boundary Layer written by Kambiz Servat-Djoo and published by . This book was released on 1987 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
