Semi-distributed Modelling of Stormwater Drains Using Integrated Hydrodynamic EPA-SWM Model

2018 ◽  
pp. 557-567
Author(s):  
M. K. Sinha ◽  
K. Baier ◽  
R. Azzam ◽  
T. Baghel ◽  
M. K. Verma
Keyword(s):  
Distributed Modelling

Future of distributed modelling

1992 ◽  
Vol 6 (3) ◽  
pp. 255-264 ◽  
Author(s):  
Karsten Høgh Jensen ◽  
Aristotelis Mantoglou
Keyword(s):  
Distributed Modelling

Integrated, spatial distributed modelling of surface runoff and soil erosion during winter and spring

CATENA ◽  
2018 ◽  
Vol 166 ◽  
pp. 147-157 ◽  
Author(s):  
Torsten Starkloff ◽  
Jannes Stolte ◽  
Rudi Hessel ◽  
Coen Ritsema ◽  
Victor Jetten
Keyword(s):  
Soil Erosion ◽  
Surface Runoff ◽  
Distributed Modelling

scholarly journals A distributed modelling approach to assess the use of Blue and Green Infrastructures to fulfil stormwater management requirements

2018 ◽  
Vol 173 ◽  
pp. 60-63 ◽  
Author(s):  
P.-A. Versini ◽  
N. Kotelnikova ◽  
A. Poulhes ◽  
I. Tchiguirinskaia ◽  
D. Schertzer ◽  
...  
Keyword(s):  
Stormwater Management ◽  
Distributed Modelling ◽  
Modelling Approach

Performance and sensitivity of a spatially distributed hydrological conceptual flood model with snow components.

2021 ◽  
Author(s):  
François Colleoni ◽  
Catherine Fouchier ◽  
Pierre-André Garambois ◽  
Pierre Javelle ◽  
Maxime Jay-Allemand ◽  
...  
Keyword(s):  
Significant Proportion ◽  
Slow Flow ◽  
Modeling Tools ◽  
Snow Modeling ◽  
Distributed Modelling ◽  
Distributed Framework ◽  
Mountainous Catchments ◽  
Spatially Distributed ◽  
Flow Components ◽  
Spatially Varying

<p>In France, flash floods are responsible for a significant proportion of damages caused by natural hazards, either human or material. Hence, advanced modeling tools are needed to perform effective predictions. However for mountainous catchments snow modeling components may be required to correctly simulate river discharge.</p><p>This contribution investigates the implementation and constrain of snow components in the spatially distributed SMASH* platform (Jay-Allemand et al. 2020). The goal is to upgrade model structure and spatially distributed calibration strategies for snow-influenced catchments, as well as to investigate parametric sensitivity and equifinality issues. First, the implementation of snow modules of varying complexity is addressed based on Cemaneige (Valery et al. 2010) in the spatially distributed framework. Next, tests are performed on a sample of 55 catchments in the French North Alps. Numerical experiments and global sensitivity analysis enable to determine pertinent combinations of flow components (including a slow flow one) and calibration parameters. Spatially uniform or distributed calibrations using a variational method (Jay-Allemand 2020) are performed and compared on the dataset, for different model structures and constrains. These tests show critical improvements in outlet discharge modeling by adding slow flow and snow modules, especially considering spatially varying parameters. Current and future works focus on testing and improving the constrains of snow modules and calibration strategy, as well as potential validation and multiobjective calibration with snow signatures gained from in situ or satellite data. </p><p>*SMASH: Spatially-distributed Modelling and ASsimilation for Hydrology, platform developped by INRAE-Hydris corp. for operational applications in the french flood forecast system VigicruesFlash</p>

scholarly journals Modelling and Evaluation of the Thermohydraulic Performance of Finned-Tube Supercritical Carbon Dioxide Gas Coolers

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1031 ◽  
Author(s):  
Lei Chai ◽  
Konstantinos M. Tsamos ◽  
Savvas A. Tassou
Keyword(s):  
Heat Transfer ◽  
Carbon Dioxide ◽  
Pressure Drop ◽  
Supercritical Carbon Dioxide ◽  
Heat Pump ◽  
Life Cycle Cost ◽  
Flow Direction ◽  
Finned Tube ◽  
Distributed Modelling ◽  
Supercritical Carbon

This paper investigates the thermohydraulic performance of finned-tube supercritical carbon dioxide (sCO2) gas coolers operating with refrigerant pressures near the critical point. A distributed modelling approach combined with the ε-NTU method has been developed for the simulation of the gas cooler. The heat transfer and pressure drop for each evenly divided segment are calculated using empirical correlations for Nusselt number and friction factor. The model was validated against test results and then used to investigate the influence of design and operating parameters on local and overall gas cooler performance. The results show that the refrigerant heat-transfer coefficient increases with decreasing temperature and reaches its maximum close to the pseudocritical temperature before beginning to decrease. The pressure drop increases along the flow direction with decreasing temperature. Overall performance results illustrate that higher refrigerant mass flow rate and decreasing finned-tube diameter lead to improved heat-transfer rates but also increased pressure drops. Design optimization of gas coolers should take into consideration their impact on overall refrigeration performance and life cycle cost. This is important in the drive to reduce the footprint of components, energy consumption, and environmental impacts of refrigeration and heat-pump systems. The present work provides practical guidance to the design of finned-tube gas coolers and can be used as the basis for the modelling of integrated sCO2 refrigeration and heat-pump systems.

Système Hydrologique Europeén (SHE): review and perspectives after 30 years development in distributed physically-based hydrological modelling

2010 ◽  
Vol 41 (5) ◽  
pp. 355-377 ◽  
Author(s):  
Jens Christian Refsgaard ◽  
Børge Storm ◽  
Thomas Clausen
Keyword(s):  
Scientific Progress ◽  
Development Stage ◽  
Internal Variables ◽  
Future Perspectives ◽  
Development History ◽  
Distributed Modelling ◽  
Physically Based ◽  
Hydrological System ◽  
History Of ◽  
The Right

The European Hydrological System (or Système Hydrologique Europeén, SHE) was initiated as a collaborative venture in 1976 between the Danish Hydraulic Institute (Denmark), Institute of Hydrology (UK) and SOGREAH (France). The present paper reviews the development history of the SHE and discusses the practical and scientific difficulties encountered during the different stages of the development. Comparison is made with eight other well-known model codes with respect to development stage and code dissemination among researchers and practitioners. Finally, the scientific developments and disputes on physically-based distributed modelling are discussed and the future perspectives outlined. The SHE venture has resulted in significant contributions to hydrological science, both in terms of model codes and new scientific insight. The fundamental scientific problems related to the inability to incorporate local scale spatial heterogeneity, scaling and uncertainty that were formulated are fundamentally still unresolved. Thus, in spite of the original visions, the hydrological community has not yet witnessed a model that in a universal sense (i.e. at all scales and for all internal variables) simulates accurate results for the right reasons. Instead, much of the scientific progress achieved during the recent years has dealt with how to live with these recognized problems.

scholarly journals Assessment of the influence of land use data on the water balance components of a peri-urban catchment using a distributed modelling approach

2013 ◽  
Vol 505 ◽  
pp. 312-325 ◽  
Author(s):  
F. Branger ◽  
S. Kermadi ◽  
C. Jacqueminet ◽  
K. Michel ◽  
M. Labbas ◽  
...  
Keyword(s):  
Land Use ◽  
Water Balance ◽  
Water Balance Components ◽  
Urban Catchment ◽  
Distributed Modelling ◽  
Modelling Approach
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