Numerical Modelling of Unsteady Flows in Rivers and Flood Plains PDF Download
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Author: Christopher Zoppou
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages :
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Book Description
Author: Christopher Zoppou
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages :
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Book Description
Author: Billy H. Johnson
Publisher:
ISBN:
Category : Locks (Hydraulic engineering)
Languages : en
Pages : 84
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Book Description
Author: D. Michael Gee
Publisher:
ISBN:
Category : Floodplain management
Languages : en
Pages : 14
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Book Description
A two-dimensional horizontal finite element numerical model (RMA-2) was applied to a 15 mile (24 km) river channel-floodplain reach in West Germany. Previous applications of such models have been restricted to much smaller scales. The results indicate that finite element schemes may successfully estimate river stage in large scale floodplain applications. Computed stage hydrographs compared well with observed data using loss coefficients within expected ranges. Two-dimensional flow models have been applied to certain classes of river channel problems. Applications have included detailed analyses of flow patterns near structures such as bridges and floodplains. In all these problems the scale of interest has been small, e.g. reaches of river a few river widths long. Many estuary studies have been done that were of large scale; some of these utilized a hybrid (numerical plus physical) modeling technique. In a review of the application of finite element methods to river channels, Samuels reported that the river channel was resolved separately from the floodplain in only two studies. Missing in previous work is attention to large scale floodplain modeling. The work reported in this paper focuses on the feasibility and accuracy of applying a two-dimensional flow model to a large floodplain. Traditional floodplain studies have used semi-empirical flow routing with steady, one-dimensional computation of water surface elevations to define inundated areas. Keywords: Army Corps of Engines. (kr).
Author: Flávio César Borba Mascarenhas
Publisher: Witpress
ISBN:
Category : Science
Languages : en
Pages : 464
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Book Description
An up-to-date text on the simulation of flood risk, this book begins by presenting the main concepts related to one-dimensional mathematical modelling of floods. Detailed mathematical models for solving free surface unsteady varied flow equations are featured. There are also sections on practical problems, techniques for parameter identification including optimisation methods, the routing of dam-break waves and case study results. The second part is devoted to flood hazard and inundation analysis. A runoff model and an inundation flow model are given while inundation analysis in urban areas, encompassing the city area and sewerage models, is discussed. Low-lying river basins are considered with particular reference to the city of Kyoto in Japan. Finally flood problems both in rural and urban basins are highlighted. A flow cell model is presented as an alternative to simulate these problems and some cases illustrating its use are provided.
Author: Johannes J. DeVries
Publisher:
ISBN:
Category : Floodplains
Languages : en
Pages : 70
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Book Description
Author: Pierre Y. Julien
Publisher: Cambridge University Press
ISBN: 1107462770
Category : Science
Languages : en
Pages : 527
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Book Description
Completely updated and with three new chapters, this analysis of river dynamics is invaluable for advanced students, researchers and practitioners.
Author:
Publisher:
ISBN:
Category : Floodplain management
Languages : en
Pages : 108
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Book Description
Author: Gary Dyhouse
Publisher:
ISBN:
Category : CD-ROMs
Languages : en
Pages : 752
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Book Description
Introduction to floodplain modeling and management - Introduction to open channel hydraulics - Hydraulic modeling tools - Planning for floodplain modeling studies - Data needs, availability, and development - Bridge modeling - Culvert modeling - Data review, calibration, and results analysis - The U.S. national flood insurance program - Floodway modeling - Channel modification - Advanced floodplain modeling - Mobile boundary situations and bridge scour - Unsteady flow modeling - Importing and exporting files with HEC-RAS.
Author:
Publisher:
ISBN:
Category : Floodplains
Languages : en
Pages : 64
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Book Description
Author: Gerhard H. Jirka
Publisher: CRC Press
ISBN: 9780203027325
Category : Science
Languages : en
Pages : 692
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Book Description
This text presents the key findings of the International Symposium held in Delft in 2003, which explored the process of shallow flows. Shallow flows are found in lowland rivers, lakes, estuaries, bays, coastal areas and in density-stratified atmospheres, and may be observed in puddles, as in oceans. They impact on the life and work of a w
