Download or read book A Numerical Study of Flow and Scour in Open Channel Contractions written by Jacob P. McLean and published by . This book was released on 2002 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of Free Surface Flow in Open Channel Contraction written by Noor Baharim Hashim 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 Open Channel Flow written by M. Hanif Chaudhry and published by Springer Science & Business Media. This book was released on 2007-11-16 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open Channel Flow, 2nd edition is written for senior-level undergraduate and graduate courses on steady and unsteady open-channel flow. The book is comprised of two parts: Part I covers steady flow and Part II describes unsteady flow. The second edition features considerable emphasis on the presentation of modern methods for computer analyses; full coverage of unsteady flow; inclusion of typical computer programs; new problem sets and a complete solution manual for instructors.
Download or read book Numerical Study of Three dimensional Flow Through a Deep Open Channel Including a Wire mesh Segment on One Side Wall written by Chandrima Jana and published by . This book was released on 2011 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this study is to numerically investigate the surface shear stress distribution for a deep open channel of aspect ratio 10, including a wire mesh segment on one side wall. This work is motivated by the need to understand the length-based separation process occurring in a deep open channel in the Bauer-McNett Fiber Classifier (BMC), a length-based fiber separator. The shear stress distribution governs the fiber orientation, which in turn, governs the length-based separation process. The flow through the BMC open channel is turbulent, and the flow field is expected to be characterized by turbulence-driven secondary flows. In order to compute the flow variables, the Reynolds-Averaged Navier-Stokes (RANS) equations have been solved. To close the RANS equations, a second-order closure turbulence model known as the Reynolds stress model is employed. The RANS equations are solved using a well known iterative solution procedure known as the Semi-Implicit Method for Pressure Linked Equations (SIMPLE) algorithm. The commercial CFD solver ANSYS FLUENT 13.1 is capable of solving the RANS equations using the Reynolds stress model to close the system of equations. It is also equipped with the SIMPLE algorithm, and hence, is chosen to study the flow in the BMC open channel. For any numerical study, the numerical solution procedure must be verified. Due to the similarity in its physical configuration to the open channel in the BMC apparatus, the canonical problem of fully developed turbulent flow in an open channel of aspect ratio unity is chosen as the verification case. Simulation of the square open channel case enables the verification of the computational methodology before it is applied to the present problem. Next, the flow in the BMC open channel is studied considering the vertical side boundaries as solid walls. The flow in the BMC open channel is characterized by the presence of multiple secondary velocities. The secondary flows are weaker than the primary flow. The secondary flows near the free surface are responsible for the increase in the shear stress on the side wall of the open channel. The resultant shear stress vectors in the open channel are found to be oriented in the primary flow direction. Finally, the flow in the BMC open channel considering a wire mesh on a segment of the side wall is studied. The wire mesh is represented by a 3x3 aperture array. The size of the apertures and the wire diameter corresponds to mesh 16. The shear stress distribution on the apertures is significantly lower than that on the solid wires. Also, the shear stress vectors of the fluid occupying the apertures indicate that the shear stress on the fluid is oriented at an angle to the plane of the apertures. The fibers in the flow are expected to align with the shear stress. Since the resulting shear stress vectors on the fluid occupying the apertures are oriented at an angle to the plane of the apertures, it suggests that fibers greater than the opening size of the apertures may escape through them.
Download or read book Fluid Mechanics and Hydraulics written by P. V. Timbadiya and published by Springer Nature. This book was released on 2023-06-27 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the proceedings of the 26th International Conference on Hydraulics, Water Resources and Coastal Engineering (HYDRO 2021) focusing on broad spectrum of emerging opportunities and challenges in the field of fluid mechanics and hydraulics. It covers a range of topics, including, but not limited to, experimental and computational fluid mechanics, sediment dynamics, environmental impact assessment of water resources projects, environmental flows, pollutant transport, etc. Presenting recent advances in the form of illustrations, tables, and text, it offers readers insights for their own research. In addition, the book addresses fundamental concepts and studies in the field of flood forecasting and hydraulic structures, making it a valuable resource for both beginners and researchers wanting to further their understanding of hydraulics, water resources and coastal engineering.
Download or read book Pier and Contraction Scour in Cohesive Soils written by J.-L. Briaud and published by Transportation Research Board. This book was released on 2004 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
Download or read book Open Channel Hydraulics written by A. Osman Akan and published by Butterworth-Heinemann. This book was released on 2021-05-21 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open Channel Hydraulics, Second Edition provides extensive coverage of open channel design, with comprehensive discussions on fundamental equations and their application to open channel hydraulics. The book includes practical formulas to compute flow rates or discharge, depths and other relevant quantities in open channel hydraulics. In addition, it also explains how mutual interaction of interconnected channels can affect the channel design. With coverage of the theoretical background, practical guidance to the design of open channels and other hydraulic structures, advanced topics, the latest research in the field, and real-world applications, this new edition offers an unparalleled user-friendly study reference. Introduces and explains all the main topics on open channel flows using numerous worked examples to illustrate key points Features extensive coverage of bridge hydraulics and scour - important topics civil engineers need to know as aging bridges are a major concern Includes Malcherek's momentum approach where applicable
Download or read book Proceedings of PIANC Smart Rivers 2022 written by Yun Li and published by Springer Nature. This book was released on 2023-02-25 with total page 1616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of selected papers from the 10th PIANC Smart Rivers Conference (Smart Rivers 2022). The work focuses on novel techniques for inland waterways and navigation structures. The contents make valuable contributions to academic researchers, engineers in the industry, and regulators of aviation authorities. As well, readers will encounter new ideas for realizing Green Waterways and Sustainable Navigations. This is an open access book.
Download or read book Innovative Trends in Hydrological and Environmental Systems written by Anil Kumar Dikshit and published by Springer Nature. This book was released on 2022-05-13 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the International Virtual Conference on Trends in Hydrological and Environmental Systems (ITHES 2021). Various topics covered in this book include urban hydrology, hydrological extremes, statistical analysis of hydro-meteorological data, impacts of climate change, hydrological modelling, groundwater studies, water resource management and applications of RS & GIS in hydrology. The book also discusses various topics on applications of CFD in water resources and environmental engineering, water and wastewater treatment, solid waste management and air quality. The book will be a valuable reference for beginners, researchers, and professionals interested in environmental civil engineering, especially hydrological and environmental systems.
Download or read book Numerical Analysis of Flow Structures and Bed Entrainment in Turbulent Open channel Flow written by Jianmin Ma and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulence and Flow Sediment Interactions in Open Channel Flows written by Roberto Gaudio and published by MDPI. This book was released on 2021-06-04 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main focus of this Special Issue of Water is the state-of-the-art and recent research on turbulence and flow–sediment interactions in open-channel flows. Our knowledge of river hydraulics is deepening, thanks to both laboratory/field experiments related to the characteristics of turbulence and their link to erosion, transport, deposition, and local scouring phenomena. Collaboration among engineers, physicists, and other experts is increasing and furnishing new inter-/multidisciplinary perspectives to the research of river hydraulics and fluid mechanics. At the same time, the development of both sophisticated laboratory instrumentation and computing skills is giving rise to excellent experimental–numerical comparative studies. Thus, this Special Issue, with ten papers by researchers from many institutions around the world, aims at offering a modern panoramic view on all the above aspects to the vast audience of river researchers.
Download or read book Numerical Analysis of Subcritical Open Channel Flow by the Penalty Function Finite Element Method written by Anish N. Puri and published by . This book was released on 1983 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of Abutment Scour in Cohesive Soils written by Xingnian Chen and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research is part of the extension of the SRICOS-EFA method for predicting the maximum scour depth history around the bridge abutment. The basic objective is to establish the equation for predicting the maximum bed shear stress around the abutment at the initial condition of scouring. CHEN3D (Computerized Hydraulic ENgineering program for 3D flow) program is utilized to perform numerical simulations and predict bed shear stress before scouring. The Chimera technique incorporated in CHEN3D makes the program capable of simulating all kinds of complex geometry and moving boundary. CHEN3D program has been proven to be an accurate method to predict flow field and boundary shear stress in many fields and used in bridge scour study in cohesive soils for more than ten years. The maximum bed shear stress around abutment in open rectangular channel is studied numerically and the equation is proposed. Reynolds number is the dominant parameter, and the parametric studies have been performed based on the dimensional analysis. The influence of channel contraction ratio, abutment aspect ratio, water depth, abutment shape, and skew angle has been investigated, and the corresponding correction This research is part of the extension of the SRICOS-EFA method for predicting the maximum scour depth history around the bridge abutment. The basic objective is to establish the equation for predicting the maximum bed shear stress around the abutment at the initial condition of scouring. CHEN3D (Computerized Hydraulic ENgineering program for 3D flow) program is utilized to perform numerical simulations and predict bed shear stress before scouring. The Chimera technique incorporated in CHEN3D makes the program capable of simulating all kinds of complex geometry and moving boundary. CHEN3D program has been proven to be an accurate method to predict flow field and boundary shear stress in many fields and used in bridge scour study in cohesive soils for more than ten years. The maximum bed shear stress around abutment in open rectangular channel is studied numerically and the equation is proposed. Reynolds number is the dominant parameter, and the parametric studies have been performed based on the dimensional analysis. The influence of channel contraction ratio, abutment aspect ratio, water depth, abutment shape, and skew angle has been investigated, and the corresponding correction factors have been proposed. The study of the compound channel configuration is conducted further to extend the application of the proposed equation. Numerical simulations of overtopping flow in straight rectangular channel, straight compound channel and channel bend have been conducted. The bridge deck is found to be able to change the flow distribution and the bed shear stress will increase significantly once overtopping. The influence of the channel bend curvature, abutment location in the channel bend, and the abutment shape is also investigated. The corresponding variation of the bed shear stress has been concluded. The scour models, including the erosion rate function, roughness effect, and the turbulence kinetic energy, have been proposed and incorporated into the CHEN3D program. One flume test case in NCHRP 24-15(2) has been simulated to determine the parameters for the roughness and the turbulence kinetic energy. The prediction of the maximum scour depth history with the proposed model is in good agreement with the measurement for most cases. The influence of overtopping flow on the abutment scour development is also studied and the corresponding correction factor is proposed.
Download or read book Numerical Study of Flow in a Rectangular Converging Channel written by Chian Voon Lee and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Numerical Study of Fluid Flow Through Fractally rough Channels with Applications to Porous Medium and Fracture Flow written by Anne Elizabeth Beachey and published by . This book was released on 1991 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Open Channel Flow written by Subhash C. Jain and published by John Wiley & Sons. This book was released on 2000-10-24 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: In diesem Band geht es um Strömungen, deren Oberfläche gegenüber der Atmosphäre offenliegt - etwa in Kanälen, Flüssen, Kanalisationsrohren und manchen Abwasserleitungen. Bau- und Umweltingenieuren wird erläutert, wie sich das Wasser in diesen Situationen verhält; alle Gleichungen werden sowohl in algebraischer als auch in Differentialform gelöst. Eine wertvolle Hilfe bei der Konstruktion von Kanalsystemen! (11/00)
