Robust Numerical Methods for Shallow Water Flows and Advective Transport Simulation on Unstructured Grids PDF Download

Author: Jingming Hou
Publisher:
ISBN: 9783844018578
Category :
Languages : en
Pages : 86

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Author: Reinhard Hinkelmann
Publisher: Springer Science & Business Media
ISBN: 9783540241461
Category : Science
Languages : en
Pages : 328

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Book Description
Numerical simulation models have become indispensable in hydro- and environmental sciences and engineering. This monograph presents a general introduction to numerical simulation in environment water, based on the solution of the equations for groundwater flow and transport processes, for multiphase and multicomponent flow and transport processes in the subsurface as well as for flow and transport processes in surface waters. It displays in detail the state of the art of discretization and stabilization methods (e.g. finite-difference, finite-element, and finite-volume methods), parallel methods, and adaptive methods as well as fast solvers, with particular focus on explaining the interactions of the different methods. The book gives a brief overview of various information-processing techniques and demonstrates the interactions of the numerical methods with the information-processing techniques, in order to achieve efficient numerical simulations for a wide range of applications in environment water.

Author: Jiaheng Zhao
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Philippe Gourbesville
Publisher: Springer
ISBN: 9811072183
Category : Science
Languages : en
Pages : 1205

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Book Description
This book gathers a collection of extended papers based on presentations given during the SimHydro 2017 conference, held in Sophia Antipolis, Nice, France on June 14–16, 2017. It focuses on how to choose the right model in applied hydraulics and considers various aspects, including the modeling and simulation of fast hydraulic transients, 3D modeling, uncertainties and multiphase flows. The book explores both limitations and performance of current models and presents the latest developments in new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It gathers the lastest theoretical and innovative developments in the modeling field and presents some of the most advance applications on various water related topics like uncertainties, flood simulation and complex hydraulic applications. Given its breadth of coverage, it addresses the needs and interests of practitioners, stakeholders, researchers and engineers alike.

Author: Abdul A. Khan
Publisher: CRC Press
ISBN: 1482226022
Category : Science
Languages : en
Pages : 208

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Book Description
This book introduces the discontinuous Galerkin (DG) method and its application to shallow water flows. The emphasis is to show details and modifications required to apply the scheme to real-world flow problems. It allows the readers to understand and develop robust and efficient computer simulation models that can be used to model flow, contaminant transport, and other factors in rivers and coastal environments. The book includes a large set of tests to illustrate the use of the model for a wide range of applications.

Author: Mark Linton Trew
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 437

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Author: Silke Wieprecht
Publisher: CRC Press
ISBN: 1317225317
Category : Science
Languages : en
Pages : 282

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Book Description
Sediment dynamics in fluvial systems is of great ecological, economic and human-health-related significance worldwide. Appropriate management strategies are therefore needed to limit maintenance costs as well as minimize potential hazards to the aquatic and adjacent environments. Human intervention, ranging from nutrient/pollutant release to physical modifications, has a large impact on sediment quantity and quality and thus on river morphology as well as on ecological functioning. Truly understanding sediment dynamics requires as a consequence a multidisciplinary approach.River Sedimentation contains the peer-reviewed scientific contributions presented at the 13th International Symposium on River Sedimentation (ISRS 2016, Stuttgart, Germany, 19-22 September 2016), and includes recent accomplishments in theoretical developments, numerical modelling, experimental laboratory work, field investigations and monitoring as well as management methodologies.

Author: Yuzhi Sun
Publisher:
ISBN:
Category : Differential equations, Hyperbolic
Languages : en
Pages : 280

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309065372
Category : Science
Languages : en
Pages : 1039

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Book Description
The Twenty-Second Symposium on Naval Hydrodynamics was held in Washington, D.C., from August 9-14, 1998. It coincided with the 100th anniversary of the David Taylor Model Basin. This international symposium was organized jointly by the Office of Naval Research (Mechanics and Energy Conversion S&T Division), the National Research Council (Naval Studies Board), and the Naval Surface Warfare Center, Carderock Division (David Taylor Model Basin). This biennial symposium promotes the technical exchange of naval research developments of common interest to all the countries of the world. The forum encourages both formal and informal discussion of the presented papers, and the occasion provides an opportunity for direct communication between international peers.

Author: Binliang Lin
Publisher:
ISBN:
Category :
Languages : en
Pages : 151

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Book Description
Details are given of the development and application of a 2D depth integrated, conformal boundary-fitted, curvilinear model for predicting the depth-mean velocity field and spatial distribution of solute and sediment concentrations in estuarine and coastal waters. In this study, conformal mapping has been used for numerical mesh generation. Conformal mapping has a very strong theoretical background in complex function theory and many of the results of analytic function theory are useful in the mesh generation process. It also has the advantage that the governing partial differential equations acquire a minimum number of extra terms on transformation, so that the solution procedures developed for Cartesian co-ordinates may still be applicable with only minor changes. A novel numerical method for conformal mesh generation, based on a boundary integral equation formulation, has been developed. By this method a general polygonal region with curved edges can be mapped onto a regular polygonal region with the same number of horizontal and vertical straight edges and a multiply-connected region can be mapped onto a regular region with the same connectivity. A stretching transformation on the conformably generated mesh has also been used to provide greater detail where it is needed (e.g., close to the coast), with large mesh sizes further offshore, thereby minimizing the computational effort whilst maximizing accuracy. Although the mesh thus generated loses its conformality, it remains orthogonal. The curvilinear hydrodynamic, solute and sediment transport model developed has been based on a robust rectilinear model. The curvilinear equations are approximated using the ADI finite difference method with a staggered grid. The operator-splitting algorithm and a conventional discretization (i.e., no splitting) algorithm have been used to solve the solute and sediment transport (or advection-diffusion) equations. To avoid the occurrence of numerical oscillations, the ULTIMATE algorithm and the third-order accurate QUICKEST scheme have been used to represent the advection terms in these equations. For the sediment transport model, effort has also been directed towards the development of an approximate source-sink term to represent the erosion and deposition of bed material which does not depend upon the vertical distribution profile calibrated at the site. The model has been verified for a series of numerical tests, and has been applied to predict concentration distributions of various water quality constituent and suspended sediment in the Bristol Channel and Humber Estuary, UK.