Environmental Hydraulics - Theoretical, Experimental and by López Jiménez, Petra Amparo

By López Jiménez, Petra Amparo

This e-book includes the chosen prolonged abstracts awarded on the First foreign Workshop on Environmental Hydraulics IWEH09, Theoretical, Experimental and Computational options, held in Valencia from 29 to 30 October 2009. the purpose of the workshop was once to inspire scientists, engineers and researchers to give and facilitate conversation on modeling environmental difficulties relating to hydrodynamic points of fluid modeling, together with fluid mechanics research, shipping of pollution, mathematical and procedure modeling, experimental and theoretical validation reviews, dimension innovations centred to environmental difficulties, etc.

80 papers were chosen for ebook within the ebook, overlaying the next topics:

  • Mathematical and numerical modeling of environmental fluid mechanics problems
  • Turbulence modeling
  • Dispersion and Transport
  • Experimental studies relating to hydraulic versions of environmental problems
  • Models Validation
  • Water and environmental engineering and hydroinformatics

This ebook presents an updated evaluation of the result of  examine and perform in current and destiny environmental hydraulics advancements, specially points concerning modelling.

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Extra resources for Environmental Hydraulics - Theoretical, Experimental and Computational Solutions: Proceedings of the International Workshop on Environmental Hydraulics, IWEH09, 29 & 30 October 2009, Valencia, Spain

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2005). 1. 5 (2008). User’s Guide, ComSol AB. Sweden. , and Ishigaki, T. (2000). Velocity measurements in a straight open channel with a rectangular embayment, Proceedings of the 12 APD-IAHR, Bangkok, Thailand. 36 Environmental Hydraulics – López-Jiménez et al (eds) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-56697-1 Simulation of the filling and emptying processes between a river and its storage areas Dieter Meire, Liesbet De Doncker, Peter Troch & Ronny Verhoeven Hydraulics Laboratory, Ghent University, Ghent, Belgium ABSTRACT: One of the traditional and effective flood protection measures is the use of storage areas.

By this the one-dimensional model is upgraded to a quasi two-dimensional model. Flow between the storage cells and the river is controlled by weirs (flooded river banks). Connection between storage cells is also made possible. Special attention will be paid to the propagation of the flood wave through the river system. Keywords: storage cell, Saint-Venant equations, Preissmann scheme, flooding 1 INTRODUCTION For a long time massive dikes with high crest levels were considered as the most efficient flood protection measure.

These parameters control the evolution of the flow patterns inside the cavity. In fact, in shallow cavities and at low flow velocities, the flow is mainly controlled by the backward step, resulting in the flow patterns of a backward facing step flow, with a separation region near the step, which is characterized by recirculating vortices and flow reversal [13–14] . Downstream the reattachment point, a boundary layer immediately develops. This is termed reattaching type flow (RF) (Fig. 1a). As the cavity depth and the flow velocity increase, the recirculation region take up the entire cavity volume and the flow pattern change from the reattaching flow to the so-called cavity flow (CF) (Figure 1b).

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