This book includes a collection of extended papers based on presentations given during the SIMHYDRO 2021 conference, held in Sophia Antipolis in June 2021 with the support of French Hydrotechnic Society (SHF). It focused on "Models for complex and global water issues—Practices and expectations”. The water field is continuously mobilizing models for addressing complex issues and new challenges. Within the context of the climate change, the water issues are exacerbated with the competition among uses. The limited water resources request from the modern societies to review some of the historical paradigms traditionally used and to promote new approaches for a sustainable management. The combined complexity and vulnerability of large urban environments request a deep understanding of water uses and environmental synergy. At the same time, water-related natural hazards are contentiously straightening modern societies that must adapt and implement a more resilient environment. In parallel, in the industrial sector, the search for a high level of efficiency for hydraulic machinery requests to simulate complex processes. Under all these situations, the models currently used represent only partly the physical phenomena involved, the scale of the processes, the hypothesis included within the different numerical tools, etc. The design and the operation of relevant models represent a challenging task for the modeller who is responsible of the knowledge part of a global system that is dedicated to support the decision makers.
The book explores both the limitations and performance of current models and presents the latest developments based on new numerical schemes, high-performance computing, multi-physics and multi-scales methods, and better interaction with field or scale model data. It addresses the interests of practitioners, stakeholders, researchers, and engineers active in this field.
Local downscaling of shallow water simulations.- SW2D-LEMON: a new
software for upscaled shallow water modelling.- 1D numerical tool for real
time modelling of a complex river network.- Rapid simulations of large scale
flood inundations using porosity functions.- Numerical and methodological
developments in 1D+ ISM models for operational purposes.- Application of a
modified parareal method for speeding up the numerical resolution of the 2D
shallow water equations.- Validation of a general-purpose
erosion-sedimentation model on a laboratory experiment.- Modelling culverts
in Basilisk.- Uncertainty quantification in hydrodynamic modelling using the
example of a 2D large-scale model of the River Elbe.- Quantification of
historical skew surges : challenges and method.- Sensitivity analysis of the
digital twin of the canal of Calais to the outlet gate modelling.- Integrated
hydraulic-hydrological assimilation chain: towards multisource data fusion
from river network to headwaters.- Meandering of the Venoge River at
Bois-de-Vaux: in-situ measurements versus 2D numerical predictions.- How to
optimally represent riverbed geometry with a simplified cross-section shape
in shallow water models?.- Evaluate the influence of groynes system on the
hydraulic regime in the ha thanh river, binh dinh province.- Comparison of
streamflow estimated by image analysis (LSPIV) and by hydrologic and
hydraulic modelling on the French Riviera during 2019 floods.- Analysis of
Triple Rectangular Plates Configurations Impacts on Local Scour around
Cylindrical Single Bridge Pier.- 2-D simulation of flow entering a building.-
Investigation of the hydraulics in flooded housing estate..- Benefit of
coupling 1d-2d model over an urban area to assess runoff during a storm
event.- Stream Rehabilitation Design In A Potentially Protected Forest
Catchment In Singapore.- Application of a physics based distributed
integrated hydrological model in flood risk management.- Risk Analysis for
Flash Flood Hazards in China.- Determination and application of dynamic
rainfall threshold for flash flood warning.- Optimized Reservoir Prior
Release Operation for Flood Control Considering Operational Weekly Ensemble
Hydrological Forecast.- Geographical cluster of flash flood hazards in
Jiangxi, China: a spatial analysis perspective.- Analysis of extreme
precipitation during the Mediterranean event associated with the Alex storm
in the Alpes-Maritimes: atmospheric mechanisms and resulting rainfall.- Are
hydrologic-hydraulic coupling approaches able to reproduce Alex flash-flood
dynamics and impacts on southeastern French headwaters?.- Improving the
efficiency of Flash Flood Forecasting and Warning System in Thailand.- Study
on Forecasting and Alarming Model of Flush Flood Based on Machine Learning.-
Numerical assessment of sediment supply impacting flash flood propagation in
mountainous confluences.- Wood debris risk analysis and protection scenarios
of Lourdes city using Iberwood model.- A study onflood inundation mapping of
surma river floodplain under extreme flood scenario nature based solutions.-
A framework for evaluating performance of large-scale Nature-Based Solutions
to reduce hydro-meteorological risks and enhance co-benefits.- Managing
droughts in Northern Germany Š The RECONECT NBS Approach and Water resources
model for Vier- und Marschlande Area, Hamburg, Germany.- Opportunities and
challenges of Natural-Based Solutions in urban areas - French case studies.-
The 1915 mud-debris flow at san fruttuoso di camogli: modeling the collapse
effects in the portofino pilot area of the h2020 reconect project.- Benefits
of green infrastructure for flood mitigation in small rural watersheds - Case
study of the Tamnava River in Serbia.- Modelling Nature-Based Solutions with
quasi-2D model.- Bregana river basin: hydrodynamic modeling and analysis of
nbs suitability within the reconect project.
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