Download or read book Turbulence characteristics in rough uniform open channel flow written by B. A. Kironoto and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbulence Characteristics of Uniform and Non uniform Rough Open channel Flow written by Bambang Agus Kironoto and published by . This book was released on 1993 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbulence in Open Channel Flows written by Hiroji Nakagawa and published by Routledge. This book was released on 2017-10-02 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.

Download or read book Roughness Effects on Turbulence Characteristics in an Open Channel Flow written by Abdullah Faruque and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study was carried out to understand the effects of roughness on the turbulence characteristics of flow in an open channel and would be presented in this chapter. Tests were conducted with four different types of bed surface conditions (an impermeable smooth bed, impermeable rough bed, permeable sand bed and an impermeable bed with distributed roughness) and at two different Reynolds number (Re¬†=¬†47,500 and 31,000). The variables of interest include the mean velocity, turbulence intensity, Reynolds shear stress, shear stress correlation and higher-order moments. Quadrant decomposition was also used to extract the magnitude of the Reynolds shear stress from the turbulent bursting events. The effect of bed roughness on the turbulence characteristics can be seen throughout the depth of flow and thus dispute the ,Äòwall similarity hypothesis,Äô. In comparison to other roughness, distributed roughness shows the greatest effect on both streamwise and vertical turbulence intensities. Velocity triple products that reflects the transportation of turbulent kinetic energy is also seen to be affected by roughness of the channel bed with a variation of 200,Äì300% compared to the flow over smooth bed. To analyze the turbulent bursting events, quadrant decomposition tools were used and found that the roughness affected heavily in the production of extreme turbulent events. The increases of the intensity and frequency of this turbulent burst causes the increase of instantaneous Reynolds shear stress. Transport of the sediment, pollutant suspension from the channel bed, changing the composition of the nutrient in the flow, sustainability of the benthic organisms, entrainment and exchange of energy and momentum are all influenced by this change of Reynolds shear stress. The sand used to form the various bed roughness conditions is same but found that the effect on different turbulence characteristics are different for different roughness. This is a strong indication that the geometric formation of the roughness is the cause of the differences in turbulence characteristics for different roughness formed by the same sand grain.

Download or read book Principles and Measuring Techniques of Turbulence Characteristics in Open channel Flows written by R. S. McQuivey and published by . This book was released on 1973 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbulence Characteristics in a 3 D Open Channel Flow written by Muk Chen Ong and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Boundary Layer Flows written by Vallampati Ramachandra Prasad and published by BoD – Books on Demand. This book was released on 2020-01-22 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts in the field, this book, "Boundary Layer Flows - Theory, Applications, and Numerical Methods" provides readers with the opportunity to explore its theoretical and experimental studies and their importance to the nonlinear theory of boundary layer flows, the theory of heat and mass transfer, and the dynamics of fluid. With the theory's importance for a wide variety of applications, applied mathematicians, scientists, and engineers - especially those in fluid dynamics - along with engineers of aeronautics, will undoubtedly welcome this authoritative, up-to-date book.

Download or read book Principles and Measuring Techniques of Turbulence Characteristics in Open channel Flows written by Raul S. McQuivey and published by . This book was released on 1973 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introduction to Advanced Fluid Dynamics and Fluvial Processes written by B. S. Mazumder and published by CRC Press. This book was released on 2023-09-21 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers fluid dynamics and fluvial processes, including basics applicable to open channel flow followed by turbulence characteristics related to sediment-laden flows. It presents well-balanced exposure of physical concepts, mathematical treatments, validation of the models/theories, and experimentations using modern electronic gadgets within the scope. In addition, it explores fluid motions, sediment-fluid interactions, erosion and scouring, sediment suspension and bed load transportation, image processing for particle dynamics, and various problems of applied fluid mechanics in natural sciences. Features: Gives comprehensive treatment on fluid dynamics and fluvial process from fundamentals to advanced level applications in one volume. Presents knowledge on sediment transport and its interaction with turbulence. Covers recent methodologies in the study of turbulent flow theories with verification of laboratory data collected by ADV, PIV, URS, LDA, and imaging techniques, and field data collected by MMB and S4 current meters. Explores the latest empirical formulae for the estimations of bed load, saltation, suspension, and bedform migration. Contains theory to experimentations with field practices with comprehensive explanations and illustrations. This book is aimed at senior undergraduates, engineering and applied science postgraduate and research students working in mechanical, civil, geo-sciences, and chemical engineering departments pertaining to fluid mechanics, hydraulics, sediment transportation, and turbulent flows.

Download or read book River Hydraulics written by Ramakar Jha and published by Springer Nature. This book was released on 2021-12-11 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents key principles of the hydraulics of river basins, with a unique focus on the interplay between stream flows and sediment transport. Addressing a number of basic topics related to the hydraulics of river systems, above all it emphasizes applicative aspects in order to provide the reader with a solid grasp of river engineering. The understanding of the river hydraulics is essential for the assessment of optimum locations for the conservation of water resources and its structures. This book will be interesting to readers and researchers working in the specialized area of river hydraulics of Ganga basin, Narmada, Tapi, Godavari, and other basins of India. It consists of review on hydraulics of meandering river; hydraulic design of reservoir in permeable pavement; optimization of hydraulic design; hydraulic investigations to optimize the design of spillway and design of energy dissipater; and analysis of performance of orifice spillway using computational fluid dynaics

Download or read book Open Channel Hydraulics written by Richard H. French and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concepts of Fluid Flow 1 (52) Introduction 1 (1) Definitions 2 (13) Governing Equations 15 (13) Theoretical Concepts 28 (11) Similarity and Physical Models 39 (2) Quantifying Uncertainty 41 (4) Bibliography 45 (1) Problems 46 (7) Energy Principle 53 (40) Definition of Specific Energy 53 (4) Subcritical, Critical and Supercritical Flow 57 (10) Accessibility and Controls 67 (8) Application of the Energy Principle to Practice 75 (12) Bibliography 87 (1) Problems 88 (5) The Momentum Principle 93 (50) Definition of Specific Momentum 93 (3) The Hydraulic Jump 96 (31) Hydraulic Jumps at Density Interfaces 127 (4) Application of the Momentum Principle to Practice 131 (5) Bibliography 136 (2) Problems 138 (5) Development of Uniform Flow Concepts 143 (78) Establishment of Uniform Flow 143 (1) The Chezy and Manning Equations 144 (3) Resistance Coefficient Estimation 147 (71) Bibliography 218 (3) Computation of Uniform Flow 221 (40) Calculation of Normal Depth and Velocity 221 (5) Normal and Critical Slopes 226 (5) Channels of Composite Roughness 231 (8) Application of Uniform Flow Concepts to Practice 239 (14) Bibliography 253 (2) Problems 255 (6) Theory and Analysis of Gradually and Spatially Varied Flow 261 (78) Basic Assumptions and the Equation of Gradually Varied Flow 261 (1) Characteristics and Classification of Gradually Varied Flow Profiles 262 (5) Computation of Gradually Varied Flow 267 (37) Spatially Varied Flow 304 (14) Application to Practice 318 (16) Bibliography 334 (1) Problems 335 (4) Design of Channels 339 (92) Introduction 339 (6) Desing of Lined Channels 345 (12) Design of Stable, Unlined, Earthen Channels: a General Tractive Force Design Methodology 357 (53) Design of Channels Lined with Grass 410 (15) Bibliography 425 (3) Problems 428 (3) Turbulent Diffusion and Dispersion in Open Channel Flow 431 (62) Introduction 431 (1) Governing Equations 432 (11) Vertical and Transverse Turbulent Diffusion and Longitudinal Dispersion 443 (34) Numerical Dispersion 477 (3) Vertical, Turbulent Diffusion in a Continuously Stratified Environment 480 (5) Bibliography 485 (3) Problems 488 (5) Unsteady Flow: Hydrologic and Hydraulic Approaches 493 (56) Introduction 493 (6) Hydrologic Approaches 499 (14) Hydraulic Approaches 513 (24) Boundary and Initial Conditions 537 (1) Calibration and Verification 538 (3) Bibliography 541 (1) Problems 542 (7) Hydraulic Models 549 (46) Introduction 549 (6) Fixed-Bed River or Channel Models 555 (8) Movable-Bed Models 563 (16) Model Materials and Construction 579 (5) Physical Model Calibration and Verification 584 (2) Special-Purpose Models 586 (4) Bibliography 590 (2) Problems 592 (3) Appendix 1 595 (18) Appendix 2 613 (12) Subject Index 625 (10) Author Index 635.

Download or read book Effects of Boundary Roughness on Turbulence in Uniform Open Channel Flow written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbulence Characteristics of Rough Boundary Shear Flow written by Charles D'Arcy Daniel Howard and published by . This book was released on 1966 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Informatics Networking and Intelligent Computing written by Jiaxing Zhang and published by CRC Press. This book was released on 2015-05-06 with total page 2590 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains selected papers presented at the 2014 International Conference on Informatics, Networking and Intelligent Computing, held in Shenzhen, China. Contributions cover the latest developments and advances in the field of Informatics, Networking and Intelligent Computing.

Download or read book Turbulence in Open Channel Flows written by Hiroji Nakagawa and published by Routledge. This book was released on 2017-10-02 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.

Download or read book Turbulence Measurements in Open channel Flow with Transverse Bed Slope written by Ka Leung Lee and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a meandering river, both the bends and the transverse bed slopes influence the turbulence in the flow. As part of a research project to study the turbulence characteristics in a meandering laboratory river channel, turbulence measurements were made in a straight flume with a transversely sloping plane bed to evaluate the effect of the transverse bed slope. The flume was 30 in. wide and had a 10% transverse bed slope. The bottom of the flume was formed by sand of 2 mm nominal size coated with paint. The depths were 0.4 in. on the shallow side and 3.5 in. on the deep side. The average velocity was 1.3 ft/s. Constant temperature hot film anemometry was used and all measurements were made with single sensor probes. Some problems encountered in the application of hot film anemometry are discussed. A detailed account of the development of the techniques for data acquisition, processing and analysis is also given. The parameters used to characterize the turbulence include the mean velocity, turbulent intensity, autocorrelation coefficient, cross-correlation coefficient, spectrum, macroscale, Taylor microscale, energy dissipation rate, Kolmogorov microscale, and skewness and kurtosis of the probability distribution of the velocity fluctuations. Some of the variations of these parameters can be attributed to the depth variation and velocity variation across the flume. The mean velocities on a vertical normalized with respect to the depth-averaged velocity were found to vary in a similar way with the relative depth for different verticals. The same observation is obtained for the relative turbulent intensity, the energy dissipation rate and the Kolmogorov micro-length scale. For the other parameters, interesting patterns of variation can be identified. These findings will be compared with those of similar measurements in the meandering laboratory river channel so that the effect of transverse bed slope on the turbulence in natural river flow can be evaluated

Download or read book Rivers Physical Fluvial and Environmental Processes written by Paweł Rowiński and published by Springer. This book was released on 2015-07-02 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the domain of research and investigation of physical, chemical and biological attributes of flowing water, and it deals with a cross-disciplinary field of study combining physical, geophysical, hydraulic, technological, environmental interests. It aims to equip engineers, geophysicists, managers working in water-related arenas as well as advanced students and researchers with the most up to date information available on the state of knowledge about rivers, particularly their physical, fluvial and environmental processes. Information from various but also interrelated areas available in one volume is the main benefit for potential readers. All chapters are prepared by leading experts from the leading research laboratories from all over the world.