Download or read book Three dimensional Numerical Modeling of Cohesive Sediment Flocculation Processes in Turbulent Flows written by Irina Klassen and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Non hydrostatic Modeling of Free surface Turbulent Flows and Transport of Cohesive Sediment written by Scott Adam Yost and published by . This book was released on 1995 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Numerical Simulation of Mobile bed Hydrodynamics written by Miodrag Spasojevic and published by . This book was released on 1993 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report describes the theoretical principles of three-dimensional sediment transport and bed-evolution processes, and numerical solution of the appropriate governing equations. It also includes technical documentation and user's instructions for the sediment-operations program module developed as an integral part of the CH3D code."--P. ii.
Download or read book Three dimensional Numerical Modelling of Sediment Transport Processes in Non stratified Estuarine and Coastal Waters written by Cahyono and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details are given herein of the development, refinement and application of a higher-order accurate 3-D finite difference model for non-cohesive suspended sediment transport processes, in non-stratified estuarine and coastal waters. The velocity fields are computed using a 2-D horizontal depth-integrated model, in combination with either an assumed Iogarithmic velocity profile or a velocity profile obtained from field data. Also, for convenience in handling variable bed topographies and for better vertical resolution, a sigma-stretching co-ordinate system has been used. In order to gain insight into the relative merits of various numerical schemes for modelling the convection of high concentration gradients, in terms of both accuracy and efficiency, thirty six existing finite difference schemes and two splitting techniques have been reviewed and compared by applying them to the following cases:....
Download or read book Numerical Modeling of Bedform Development in Turbulent Flows written by Quoc Y. Nguyen and published by LAP Lambert Academic Publishing. This book was released on 2012-05 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of river bedform under interactions with water flows is a complex process due to turbulence of the flow and continuous change of bed geometry. In this study, the problem was examined by numerical computations. Two latest advanced tools of Computational Fluid Mechanics, namely Large-Eddy-Simulation and Immersed-Boundary-Method, were employed. Flows were turbulent at low Reynolds number and treated in three-dimensions. Bed surfaces was treated as continuos medium rather than individual sediment particles. The results showed strong correlations between change of the bed surface and the shear tress applied by the flows. Development of bedform from initially flat bed to full-size sandwaves had been observed from the computations. Experimentally observed phenomena, such as development of ripple train, was also successfully reproduced.
Download or read book Three dimensional Numerical Modelling of Sediment Transport Processes in Non stratified Estuarine and Coastal Waters written by M. Cahyono and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Numerical Model for Turbulent Flows Through River Reaches of Complex Bathymetry written by Sanjiv Kumar Sinha and published by . This book was released on 1996 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Three dimensional Numerical Model for Simulating Flow and Sediment Transport Processes in Fluvial and Deltaic Environments written by Shao-ou Chin and published by . This book was released on 1997 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Transport written by Silvia Susana Ginsberg and published by IntechOpen. This book was released on 2011-04-26 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediment transport is a book that covers a wide variety of subject matters. It combines the personal and professional experience of the authors on solid particles transport and related problems, whose expertise is focused in aqueous systems and in laboratory flumes. This includes a series of chapters on hydrodynamics and their relationship with sediment transport and morphological development. The different contributions deal with issues such as the sediment transport modeling; sediment dynamics in stream confluence or river diversion, in meandering channels, at interconnected tidal channels system; changes in sediment transport under fine materials, cohesive materials and ice cover; environmental remediation of contaminated fine sediments. This is an invaluable interdisciplinary textbook and an important contribution to the sediment transport field. I strongly recommend this textbook to those in charge of conducting research on engineering issues or wishing to deal with equally important scientific problems.
Download or read book Modelling of Flows and Sediment Through Hydraulic Structures written by Shervin Faghihirad and published by LAP Lambert Academic Publishing. This book was released on 2015-09-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central concern of the book is to study flows and sediment phenomena through hydraulic structures in a regulated reservoir. The flow patterns in and around most hydraulic structures are complex, three-dimensional, and highly turbulent. For these reasons, in order to understand the impact of hydraulic structures on the hydrodynamic, sediment transport processes and morphological changes in regulated reservoirs it is often necessary to investigate these processes in three dimensions. In design a real and complex water regulated reservoir both physical and numerical models are applied. In the numerical sections, explain the governing equations of the hydrodynamic (including turbulence), sediment transport and morphodynamic process, respectively. Besides, mathematical solutions for the different equations are given in detail in a separate chapter. In next chapters, the capability of the numerical model is evaluated with two sets of experimental data. Also, one chapter presents the application of the numerical model to the experiment explained in physical modelling part and comparisons made between the physical and numerical model results. Final chapter summarises the main findings.
Download or read book Three dimensional Numerical Analysis of Flow Structure and Sediment Transport Process in Open Channels written by Esteban Sánchez Cordero and published by . This book was released on 2019 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research project focuses on the analysis and prediction of flow structures and sediment transport process in open channels by using three-dimensional numerical models. The numerical study was performed using the open source computational fluid dynamics (CFD) solver based on the finite volume method (FVM) – OpenFOAM. Turbulence is treated by means of the two main methodologies; i.e. Large Eddy Simulation (LES) and Reynolds-Averaged Navier–Stokes (RANS). The free surface is tracked using the Volume of Fluid method (VOF). In addition, a new multi-dimensional model for sediment transport based on the Eulerian two-phase mathematical formulation is applied. The results obtained from the different numerical configurations are verified and validated against experimental data sets published in important research journals. The main characteristics of the flow structures are studied by using three set-up cases in steady and unsteady-state (transient) hydraulic flow conditions. On the other hand, the new multi-dimensional model for sediment transport is applied to predict the local scour caused by submerged wall jet test-case. Non-uniform structured elements are used in the grid configuration of the computational domains. A mesh sensitivity analysis is performed in each test-case study in order to obtain independent grid results. This analysis provides a balance between accuracy and optimal computational time. The results demonstrate that the three-dimensional numerical configurations satisfactorily reproduce the temporal variation of the different variables under study with correct trends and high correlation with the experimental values. Regarding the analysis and prediction of the flow structures, the results show the importance of the turbulence approach in the numerical configuration. On the other hand, the results of the new multi-dimensional two-phase model allow to analyze the full dynamics for sediment transport (concentration profile). Although the numerical results are satisfactory, the application of three-dimensional numerical models in field-scale cases requires a high computational resource.
Download or read book Sediment Transport written by Silvia Susana Ginsberg and published by BoD – Books on Demand. This book was released on 2011-04-26 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediment transport is a book that covers a wide variety of subject matters. It combines the personal and professional experience of the authors on solid particles transport and related problems, whose expertise is focused in aqueous systems and in laboratory flumes. This includes a series of chapters on hydrodynamics and their relationship with sediment transport and morphological development. The different contributions deal with issues such as the sediment transport modeling; sediment dynamics in stream confluence or river diversion, in meandering channels, at interconnected tidal channels system; changes in sediment transport under fine materials, cohesive materials and ice cover; environmental remediation of contaminated fine sediments. This is an invaluable interdisciplinary textbook and an important contribution to the sediment transport field. I strongly recommend this textbook to those in charge of conducting research on engineering issues or wishing to deal with equally important scientific problems.
Download or read book Cohesive sedimentary systems Dynamics and deposits written by Andrew James Manning and published by Frontiers Media SA. This book was released on 2024-01-30 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Turbulence Modeling for Free Surface Flows written by Junying Qu 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 A Sediment laden Three dimensional flow Numerical Model written by Sergio Everardo Adeff and published by . This book was released on 1988 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cohesive Sediments in Open Channels written by Emmanuel Partheniades and published by Butterworth-Heinemann. This book was released on 2009-04-23 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control the impact of cohesive sediments on open channels by managing the effects of silt, clay and other sediments in harbors, estuaries and reservoirs. Cohesive Sediments in Open Channels provides you with a practical framework for understanding how cohesive sediments are transported, deposited and eroded. One of the first books to approach the subject from an engineering's perspective, this book supplies insight into applying hydraulic design as well as understanding the behavior of cohesive sediments in a flow field. - Properties and of the nature and the origin of the interparticle physicochemical forces - The forces between clay particles and the process of flocculation - Processes and dynamics of flocculation and the hydrodynamic behavior of cohesive sediments - Transport processes of sediments by flowing water and related equations are first presented and explained - Deposition and resuspension of beds deposited from suspension from flowing waters - Engineering applications of the hydraulics of cohesive sediments
Download or read book Sediment dynamics and geohazards in estuaries and deltas written by Xiaolei Liu and published by Frontiers Media SA. This book was released on 2023-02-17 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
