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- Hydrodynamic Modelling (61)
- Application of Data-driven Modelling in Water Sciences (51)
- Optimization of Water Resources Management and Control (48)
- Hydrological Modelling (42)
- Case Studies (41)
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- Application of Optimization Techniques in Model Development (37)
- Model-Data Integration and Data Assimilation (36)
- DSS for Water Resources and Quality Management (33)
- Risk and Uncertainty Analysis (29)
- Application Cases of DSS (27)
- Developments of Flood and Drought Early Warning Systems (27)
- Emerging Modelling Paradigms and Model Coupling (26)
- Modelling and control in urban water systems (26)
- Real-time data processing (26)
- Drought (25)
- Erosion (25)
- Transport and Eco-hydraulic Modelling (25)
- Energy (24)
- Optimization (24)
- Biodiversity (23)
- Computational Intelligence in data-driven and hybrid Models and Data Analysis (23)
- Health (23)
- Impacts on Water Resources (23)
- Saltwater Intrusion (23)
- Socio-economy and Governance (23)
- Urban/Rural Flooding (23)
- Remote Sensing of the Water Environment (22)
- Data Standards and Protocols (21)
- Parallel (21)
Articles 31 - 60 of 464
Full-Text Articles in Physical Sciences and Mathematics
Water Resources Contribution To Economic Growth In Erdos City: Model And Demonstration, Yong Zhao, Guiqing Jiang, Fuliang Yu, Jiaqi Zhai, Benqing Ruan, Kai Wang
Water Resources Contribution To Economic Growth In Erdos City: Model And Demonstration, Yong Zhao, Guiqing Jiang, Fuliang Yu, Jiaqi Zhai, Benqing Ruan, Kai Wang
International Conference on Hydroinformatics
Erdos City has been one of the fastest growing economic regions in China in the past twenty years, whose average annual economic growth rate has exceeded 20%. However, water resources shortage is becoming increasingly significant in constraint on social development and has gradually developed to be one of primary weakest factors. Based on the analysis of main factors promoting economic growth in Erdos City with Cobb-Douglas production function in economics, the economic growth model involving water resources availability and coal output has been established and the data conversion method considering water consumption efficiency and water consumption structural change has been …
Development And Application Of A Shallow Water Flow Model Hdm-2d, Chang Geun Song, Il Won Seo, Jae Hyun Shin, In Hwan Park
Development And Application Of A Shallow Water Flow Model Hdm-2d, Chang Geun Song, Il Won Seo, Jae Hyun Shin, In Hwan Park
International Conference on Hydroinformatics
In this study, an unsteady 2D depth-averaged flow model, HDM-2D was developed by employing the finite element algorithm. The shallow water equations were weighted by SU/PG test function of which the shape is deformed by the current direction to introduce balancing diffusion only in the flow direction. The nonlinearity of the discretized momentum equations was linearized by Newton-Raphson method. Triangular or rectangular element with C0 interpolation function can be mixed together in the construction of geometry and the linear set of equations was solved by frontal method. The HDM-2D features (1) the incorporation of secondary current effect by dispersion stresses; …
Support Of Teaching And Research In Hydroinformatics With R, Milan Cisty
Support Of Teaching And Research In Hydroinformatics With R, Milan Cisty
International Conference on Hydroinformatics
R is a free software programming language and environment for statistical computing and graphics. Polls and surveys show that R's popularity has increased substantially in recent years. The objective of this paper is to review features that make R a powerful environment for pre-processing and analyzing data from hydrology and water resources management, and for various other tasks such as hydrological processes modeling, time series analysis, trend analysis, GIS analysis of the watershed, geostatistics, extreme value analysis and various other tasks. This review paper will deal with the possibilities of applying the R programming language in water resources and hydrologic …
Decision Support Tool For Hydraulic Reliability Based Design Of Water Distribution Networks, Nemanja Trifunovic
Decision Support Tool For Hydraulic Reliability Based Design Of Water Distribution Networks, Nemanja Trifunovic
International Conference on Hydroinformatics
The manuscript describes the decision support tool for design and hydraulic reliability assessment of water distribution networks. The reliability analyses that have been conducted on geometric-, hydraulic- and economic grounds all reflect the complexity of network resilience that is still difficult to generalise or classify, as well as it is impossible to asses without full integration of all three aspects. The tool that aims to achieve this integration processes a preselected seed of network sources and (demand) nodes prepared in EPANET without any pipe connection. It is composed of the modules for generation of various connectivity layouts by applying the …
Ensemble Simulation From Multiple Data Sources In A Spatially Distributed Hydrological Model Of The Rijnland Water System In The Netherlands, Isnaeni Murdi Hartanto, Schalk-Jan Van Andel, Thomas K. Alexandridis, Dimitri P. Solomatine
Ensemble Simulation From Multiple Data Sources In A Spatially Distributed Hydrological Model Of The Rijnland Water System In The Netherlands, Isnaeni Murdi Hartanto, Schalk-Jan Van Andel, Thomas K. Alexandridis, Dimitri P. Solomatine
International Conference on Hydroinformatics
Data for water management is increasingly easy to access, it has finer spatial and temporal resolution, and it is available from various sources. Precipitation data can be obtained from meteorological stations, radar, satellites and weather models. Land use data is also available from different satellite products and different providers. The various sources of data may confirm each other or give very different values in space and time. However, from these various data sources, it can often not be judged beforehand that one data is correct and others are wrong. Each source has its own value for a particular purpose. The …
A New Methodology For Deriving Regional Time Of Concentration Equations Using Gis And Genetic Programming, Soroosh Sharifi, Mahdi Razaz
A New Methodology For Deriving Regional Time Of Concentration Equations Using Gis And Genetic Programming, Soroosh Sharifi, Mahdi Razaz
International Conference on Hydroinformatics
Time of concentration (ToC) is the most frequently utilized time-scale parameter in hydrology which must be estimated accurately to ensure correct simulation of many different hydrological processes. Hydrologists have developed many empirical and semi-empirical methods for estimating ToC which are regional, watershed, and site-specific. Modellers are often confused by the number of ToC estimation methods and formulas and often select an equation without evaluating its correctness which leads to inaccurate simulation results. The importance of deriving and using regional ToC equations has been highlighted in many studies. In this paper, a methodology is proposed for deriving ToC equation(s) for watersheds …
Software Tools For Large Scale Interactive Hydrodynamic Modeling, Gennadii Donchyts, Fedor Baart, Arthur Van Dam, Bert Jagers, Sander Van Der Pijl
Software Tools For Large Scale Interactive Hydrodynamic Modeling, Gennadii Donchyts, Fedor Baart, Arthur Van Dam, Bert Jagers, Sander Van Der Pijl
International Conference on Hydroinformatics
Running hydrodynamic models interactively allows both visual exploration and change of model state during simulation. One of the main characteristics of an interactive model is that it should provide immediate feedback to the user, for example respond to changes in model state or view settings. For this reason, such features are usually only available for models with a relatively small number of computational cells, which are used mainly for demonstration and educational purposes. It would be useful if interactive modeling would also work for models typically used in consultancy projects involving large scale simulations. This results in a number of …
Short-Term Optimization Model With Esp Forecasts For Columbia Hydropower System With Optimized Multi-Turbine Powerhouses, Jery R. Stedinger, Sue Nee Tan, Christine A. Shoemaker, Jonathan R. Lamontagne, Steven B. Barton
Short-Term Optimization Model With Esp Forecasts For Columbia Hydropower System With Optimized Multi-Turbine Powerhouses, Jery R. Stedinger, Sue Nee Tan, Christine A. Shoemaker, Jonathan R. Lamontagne, Steven B. Barton
International Conference on Hydroinformatics
Hydroelectric generation is the major source of electric energy in the Pacific Northwestern region of the United States, and efficient operation of that system while meeting environmental constraints and reserve capacity demands is an important economic, environmental, and social issue. This paper describes efforts to develop a new stochastic short-term scheduling model (with perhaps a 3-week planning horizon) for the ten major reservoirs operated by the federal Bonneville Power Administration (BPA) on the Columbia and Snake River systems. The analysis incorporates time-delays (up to 24 hours in a model with time steps increasing from 6 hours initially perhaps to 24 …
High Performance Gpu Speed-Up Strategies For The Computation Of 2d Inundation Models, Asier Lacasta, Mario Morales-Hernández, Javier Murillo, Pilar García-Navarro, Reinaldo Garcia
High Performance Gpu Speed-Up Strategies For The Computation Of 2d Inundation Models, Asier Lacasta, Mario Morales-Hernández, Javier Murillo, Pilar García-Navarro, Reinaldo Garcia
International Conference on Hydroinformatics
Two-dimensional (2D) models are increasingly used for inundation assesements in situations involving large domains of millions of computational elements and long-time scales of several months. Practical applications often involve a compromise between spatial accuracy and computational efficiency and to achieve the necessary spatial resolution, rather fine meshes become necessary requiring more data storage and very long computer times comparable to the real simulated process (e.g. 1 month of real-time simulation may require 1 month of computations approximately). Obviously, using conventional 2D non-parallelized models (CPU based) make simulations impractical in real project applications, but improving the performance of such complex models …
Reliability Analysis Approach For Operations Planning Of Hydropower Systems, Jiyi Zhou, Ziad K. Shawwash, Daniel Archila, Paul Vassilev, Vladimir Plesa, Gillian Kong, Alaa Abdalla
Reliability Analysis Approach For Operations Planning Of Hydropower Systems, Jiyi Zhou, Ziad K. Shawwash, Daniel Archila, Paul Vassilev, Vladimir Plesa, Gillian Kong, Alaa Abdalla
International Conference on Hydroinformatics
Many existing hydropower storage facilities were built decades ago and components of these aging infrastructure facilities have higher risk of failure. Insufficient capacity or forced outages of the spillway and other waterway passage facilities during flooding incident could potentially increase the probability of dam safety incidents leading to public safety concerns. Currently approaches used to assess the risk and uncertainty in operational decision making are mainly based on qualitative assessment and expert judgment and can be significantly improved by the development of a framework that formally incorporates both qualitative and quantitative reliability analysis methods. Event tree analysis and fault tree …
A Statistics-Based And An Simple Physics-Based Models Toward An Operational And Early Flood Warning System, Tsunhua Yang, Yi-Chin Chen, Sheng-Chi Yang, Jui-Yi Ho, Gong-Do Hwang
A Statistics-Based And An Simple Physics-Based Models Toward An Operational And Early Flood Warning System, Tsunhua Yang, Yi-Chin Chen, Sheng-Chi Yang, Jui-Yi Ho, Gong-Do Hwang
International Conference on Hydroinformatics
Life and property losses because of disasters such as flood and landslide are getting dramatic increases for past years. Frequent extreme weather events have even worsened the damages globally. Given sufficient information in advance, disaster preparedness and management can be well-settled. The damages and losses can be mitigated and even prevented. An early disaster warning system with enough leadtimes is essential for decision-makers to take prevented measures and execute cautions. This study proposed a prototype of an early disaster warning system which issues warnings for rainfall related disasters such as flood and landslide. Using ensemble quantitative precipitation forecasts, the system …
Vulnerability Index For Urban Flooding: Understanding Social Vulnerabilities And Risks, Mae Brigitt Bernadel Loyloy Villordon, Philippe Gourbesville
Vulnerability Index For Urban Flooding: Understanding Social Vulnerabilities And Risks, Mae Brigitt Bernadel Loyloy Villordon, Philippe Gourbesville
International Conference on Hydroinformatics
According to the World Risk Report released by the United Nations University Institute for Environment and Human Security, the Philippines is ranked third globally in terms of disaster risk. One of those disaster risks is flooding which poses a serious challenge to development and the lives of the people. Public health risks and social vulnerability were usually overlooked, undermined and only very little attention is given. Thus, this study focuses on these aspects. This study was an exploratory step towards assessing vulnerability particularly to fluvial flooding, it was a rapid assessment of the Knowledge, Attitudes, and Practices (KAP) of the …
Minimum Data Requirements For Integrating Urban Development And Urban Water Infrastructure Models, Christian Mikovits, Michael Mair, Wolfgang Rauch, Manfred Kleidorfer
Minimum Data Requirements For Integrating Urban Development And Urban Water Infrastructure Models, Christian Mikovits, Michael Mair, Wolfgang Rauch, Manfred Kleidorfer
International Conference on Hydroinformatics
Data quality and availability is a common problem in many modelling studies dealing with regional, spatially distributed case studies. This is true for both, urban development models and urban water management models. As current research in urban water management more and more tries to benefit from an integrated view of the performance of water networks in the context of dynamically growing and shrinking cities, this problem of data scarcity increases. Having different applications with different levels of details available, the question arises which data (and which temporal and spatial resolution) is really necessary to be collected in a modeling study …
Pressure Fluctuations On The Slabs Of Stilling Basins Under Hydraulic Jump, Abdollah Sobani
Pressure Fluctuations On The Slabs Of Stilling Basins Under Hydraulic Jump, Abdollah Sobani
International Conference on Hydroinformatics
Although in the design of hydraulic structures generally the average characteristics is considered, but according to studies, use of this approach for the design of structures such as spillways and the stilling basins which are under the influence of turbulent flows and in other hand, the difference between the moment values of the parameters of the medium values, are impressive, is not recommended. Due to the enormous and costly construction and operating costs of such buildings, the study of fluctuation characteristics of the turbulent flow and their role in estimating the maximum tensile force is necessary and inevitable.
Modeling Of District Metered Areas With Relatively High Leakage Rate. The Case Study Of Kalipoli’S Dma, Antonios Bakogiannis, Athanasios Tzamtzis
Modeling Of District Metered Areas With Relatively High Leakage Rate. The Case Study Of Kalipoli’S Dma, Antonios Bakogiannis, Athanasios Tzamtzis
International Conference on Hydroinformatics
The article reviews the modelling of District Metered Areas (DMAs) with relatively high leakage rate. As a generally recognised approach in modelling of leakage does not exist, modelling of leakage by enginners and other researchers usually takes place by dividing the whole leakage rate evenly to all available nodes of the model. In this article, a new methodology is proposed to determine the nodal leakage by using a hydraulic model. The proposed methodology takes into consideration the IWA water balance methodology, the Minimum Night Flow (MNF) analysis, the number of connections related to each node and the marerial of pipes. …
Catchment-Scale Water Quality Monitoring, Control And Management Framework Using Collaborative Wireless Sensor Networks, Huma Zia, Nick Harris, Geoff Merrett
Catchment-Scale Water Quality Monitoring, Control And Management Framework Using Collaborative Wireless Sensor Networks, Huma Zia, Nick Harris, Geoff Merrett
International Conference on Hydroinformatics
Improving water quality is a global concern, with agricultural practices being the major contributors to reduced water quality. The reuse of nutrient-rich drainage water can be a valuable strategy to maximise water resources and gain economic-environmental benefits. Transmitting event information across a catchment, as the event occurs upstream, allows prediction of the outflow dynamics of the expected discharges downstream. Here, we propose a framework architecture which utilises increasingly common local farm-scale networks and other water-quality monitoring networks across a catchment, adding provision for collaborative information sharing. The key part is that individual networks learn their environment, predicting the impact of …
Temperature Dynamics Investigation At Small And Shallow Lakes Using Hydrodynamic Model, Ali Abbasi, Nick Van De Giesen
Temperature Dynamics Investigation At Small And Shallow Lakes Using Hydrodynamic Model, Ali Abbasi, Nick Van De Giesen
International Conference on Hydroinformatics
A three-dimensional time-dependent hydrodynamic and heat transport model of Lake Binaba, a shallow and small dam reservoir in Ghana, emphasizing the simulation of dynamics and thermal structure has been developed. Most numerical studies of temperature dynamics in reservoirs are based on one- or two-dimensional models. These models are not applicable for reservoirs characterized with complex flow pattern and unsteady heat exchange between the atmosphere and water surface. Continuity, momentum and temperature transport equations have been solved. Proper assignment of boundary conditions, especially surface heat fluxes, has been found crucial in simulating the lake’s hydrothermal dynamics. This model is based on …
Reliability Of Simulated Discharges For Different Gauge Locations In A Semi Distributed Rainfall Runoff Model, Johannes Bellinger, Stefan Achleitner, Johannes Schöber, Friedrich Schöberl
Reliability Of Simulated Discharges For Different Gauge Locations In A Semi Distributed Rainfall Runoff Model, Johannes Bellinger, Stefan Achleitner, Johannes Schöber, Friedrich Schöberl
International Conference on Hydroinformatics
In terms of flood forecasting in alpine environments, predictions at different gauges as well as sites with exposed infrastructure within the catchment are required. The used semi-distributed hydrological model HQsim combines runoff formation and surface runoff routines with an implemented channel routing for river reaches. This allows the estimation of discharges at selected channel segments. As a case study a large alpine catchment with a size of 890 km² is used. The uncertainty in the discharge prediction is investigated at three discharge gauges located along the main river. The basis of our experimental set-up are 15,000 samples describing the prior …
A Web Based Water Resources Analysis Portal For Occoquan Watershed, Saurav Kumar, Adil Godrej, Thomas Grizzard, Harold Post, Justin Bartlett
A Web Based Water Resources Analysis Portal For Occoquan Watershed, Saurav Kumar, Adil Godrej, Thomas Grizzard, Harold Post, Justin Bartlett
International Conference on Hydroinformatics
In most of the developed world, water resources data, including both water quality and quantity, has been collected for decades. Such datasets are often used to calibrate water resources models that in turn are capable of producing large amounts of data useful for activities such as forecasting and risk analysis. Like many other domains (e.g., finance, marketing, etc.), significant education, extension, and policy making benefits may be had by building data analytics tools to derive knowledge from these datasets. The knowledge thus available may be turned into intelligence by policy makers and may also be used to enhance environmental education …
Verification Of The Standard Vector Data Model For Interoperability Of River-Geospatial Information, Hyungjin Shin, Hyosok Chae, Euiho Hwang
Verification Of The Standard Vector Data Model For Interoperability Of River-Geospatial Information, Hyungjin Shin, Hyosok Chae, Euiho Hwang
International Conference on Hydroinformatics
Recently, two international standard organizations, ISO and OGC, have done the work of standardization for GIS. Current standardization work for providing interoperability among GIS DB focuses on the design of open interfaces. But, this work has not considered procedures and methods for designing river geospatial data. Eventually, river geospatial data has its own model. When we share the data by open interface among heterogeneous GIS DB, differences between models result in the loss of information. In this study a plan was suggested both to respond to these changes in the information envirnment and to provide a future Smart River-based river …
Comparison Of Interpolation Technique For Rain Gauge Data Through The Distributed Rainfall-Runoff Model, Byung-Jin So, Ji-Young Yoo, Hyun-Han Kwon
Comparison Of Interpolation Technique For Rain Gauge Data Through The Distributed Rainfall-Runoff Model, Byung-Jin So, Ji-Young Yoo, Hyun-Han Kwon
International Conference on Hydroinformatics
Precipitation estimated from different measuring techniques such as rain gauge, radar and satellite have some similarities, but there are also differences among them. For example, techniques based on radar and satellite data underestimate rainfall than those using rain gauge data. In addition, many different interpolation techniques have been used to measure spatial pattern of precipitation but it is still difficult to have an accurate pattern by any one of them. The differences between the rainfall estimates from different techniques vary seasonally as well as regionally so that the radar or satellites are not directly applied into hydrologic analysis. In this …
Fast Neural Network Surrogates For Complex Groundwater Flow Models, Niels Schütze, Tirthankar Roy
Fast Neural Network Surrogates For Complex Groundwater Flow Models, Niels Schütze, Tirthankar Roy
International Conference on Hydroinformatics
Surrogate modeling approach has been adopted in the study to replace computationally expensive physical-based numerical flow and transport model. Two approximate surrogate models namely, Artificial Neural Network (ANN) and Gaussian Process Model (GPM) are developed individually using a scenario database generated from the density dependent numerical flow and transport model OpenGeoSys (OGS). The state-space surrogates have the flexibility to move freely from one point to another within a time frame of decades and also to allow for moderate extrapolation in the case of extreme abstractions. The performance of the GPM was better in many cases with a little compromise on …
Direct Numerical Simulation Of Particle Saltation In Turbulent Channel Flow, Chunning Ji, Ante Munjiza, Eldad J. Avital, John J. R. Williams
Direct Numerical Simulation Of Particle Saltation In Turbulent Channel Flow, Chunning Ji, Ante Munjiza, Eldad J. Avital, John J. R. Williams
International Conference on Hydroinformatics
This paper numerically investigates particle saltation in a turbulent channel flow having a rough bed consisting of 2-3 layers of densely packed spheres. The Shield’s Function is 0.065 which is just above the sediment entrainment threshold to give a bed-load regime. The applied methodology is a combination of three technologies, i.e., the direct numerical simulation of turbulent flow, the combined finite-discrete element modelling of the deformation, movement and collision of the particles, and the immersed boundary method for the fluid-solid interaction. It is shown that the presence of entrained particles significantly modifies the flow profiles of velocity, turbulent intensities and …
Integration Of Water Supply Distribution Systems By Using Interoperable Standards To Make Effective Decisions, Gabriel Anzaldi, Wenyan Wu, Andreas Abecker, Edgar Rubión, Aitor Corchero, Ambreen Hussain, Michael Quenzer
Integration Of Water Supply Distribution Systems By Using Interoperable Standards To Make Effective Decisions, Gabriel Anzaldi, Wenyan Wu, Andreas Abecker, Edgar Rubión, Aitor Corchero, Ambreen Hussain, Michael Quenzer
International Conference on Hydroinformatics
This paper aims at presenting current standards used and their implementation to integrate different decision making tools spread throughout the Water Supply Distribution Chain. Nowadays in Europe the water supply distribution managers use many tools to perform their decisional processes and multiple data sources to aid in decision making which are totally unconnected and use different communication languages. The data and protocols heterogeneity provides a lack of fluidity in communications between the tools, and in many cases non-existent. An architectural proposal, which uses hydrologic standards, with the aim to offer a common way to interconnect existing tools and data to …
Developing Landsat Based Algorithms To Augment In Situ Monitoring Of Freshwater Lakes And Reservoirs, Eliza Deutsch, Ibrahim Alameddine, Mutasem El-Fadel
Developing Landsat Based Algorithms To Augment In Situ Monitoring Of Freshwater Lakes And Reservoirs, Eliza Deutsch, Ibrahim Alameddine, Mutasem El-Fadel
International Conference on Hydroinformatics
Many lakes and reservoirs lack adequate water quality monitoring programs. With little information on the state of these systems, managing these resources and their contributing watersheds is a challenge. The use of remote sensing presents an opportunity to better characterize these freshwater systems. The full potential of using the Landsat program to measure optically active water quality parameters, such as chlorophyll-a, suspended sediments and water clarity was explored using the Qaraoun Reservoir in Lebanon as a case study. An in situ monitoring program was developed and synchronized with the overpass of Landsat 7 and the newly launched Landsat 8 satellites …
Causal Graph Discovery For Hydrological Time Series Knowledge Discovery, Piraporn Jangyodsuk, Dong-Jun Seo, Jean Gao
Causal Graph Discovery For Hydrological Time Series Knowledge Discovery, Piraporn Jangyodsuk, Dong-Jun Seo, Jean Gao
International Conference on Hydroinformatics
Causal inference or causal relationship discovery is an important task in hydrological study to explore the causes of abnormal hydrology phenomena such as drought and flood, which will help improving our prediction and response ability to natural disasters. Different from generic causality study where causalrelation discovery is sufficient, for extreme hydrological situation prediction and modeling, we need not only to construct a causal graph to reveal the contributing factors, but also to provide the lead time of each cause to its effect. Lead time is the time difference between the occurrence of lead and effect. Though causal inference or causal …
Flood Resilience Index - Methodology And Application, Jelena Batica, Philippe Gourbesville
Flood Resilience Index - Methodology And Application, Jelena Batica, Philippe Gourbesville
International Conference on Hydroinformatics
In recent years the number of people affected by flooding processes increases up to the point where the organisational structure of urban communities threatens to experience the significant direct and indirect damages. The vulnerability to flooding processes due to sophisticated assets is high and the assessment of flood resilience becomes the main direction to follow within integrated flood risk management. This paper takes a first step in bringing resilience in integrated flood risk management through a framework that is employing five dimensions in order to evaluate the level of disturbance and ability to preserve and functioning during and after the …
Optimized Use Of Water From Multiple Sources In Micro Water Grid Systems: A Modeling Approach, Hyeongrak Cho, Jungwoo Jung, Sangho Lee, Soo Kwen Chae
Optimized Use Of Water From Multiple Sources In Micro Water Grid Systems: A Modeling Approach, Hyeongrak Cho, Jungwoo Jung, Sangho Lee, Soo Kwen Chae
International Conference on Hydroinformatics
Micro water grid (MWG) is a novel approach to allow high reliability, diversification of water sources, low energy consumption, and cost reduction. Although it is not well-defined, it has potential for efficient management of urban water. MWG is suitable for use in small-scale buildings and towns, which have various uses of water produced from multiple source waters. Accordingly, design of MWG is challenging without proper tools to predict its performance. This research focused on the development and application of a model for optimized use of water from multiple sources in MWG systems. The model was comprised of two modules including …
Development Of A Micro Water Grid (Mwg) Pilot Platform For Green Buildings, Su-Kwon Chae, Juneseok Lee, Hyun-Byung Chae
Development Of A Micro Water Grid (Mwg) Pilot Platform For Green Buildings, Su-Kwon Chae, Juneseok Lee, Hyun-Byung Chae
International Conference on Hydroinformatics
The objectives of this Micro Water Grid (MWG) pilot platform project are to i) address the need for reliable municipal water supplies, ii) identify and strengthen vulnerable water system elements, and iii) design an optimal micro water grid pilot platform for green buildings. This paper describes the overall context of the MWG and considers appropriate analytical methods for water demand, hydraulic analysis and decision models for optimal MWG pilot platforms. This is an on-going research project and various MWG design scenarios, along with numerical results, will be presented as the research progresses.
2d Mathematical Modeling For Fluvial Processes Considering The Influence Of Vegetation And Bank Erosion, Yi Xiao, S.Y. Yang, J. Hu, W.J. Li, S.C. Tong, X. H. Fu
2d Mathematical Modeling For Fluvial Processes Considering The Influence Of Vegetation And Bank Erosion, Yi Xiao, S.Y. Yang, J. Hu, W.J. Li, S.C. Tong, X. H. Fu
International Conference on Hydroinformatics
A 2D mathematical model for fluvial processes capable of considering the influence of vegetation and non-cohesive bank erosion is established based on a body-fitted coordinate system in this paper. The authors have improved a previously developed simulation model by taking into account the impact of vegetation with a vegetation stress term in the momentum conservation equation. A simple simulation method is adopted in the bank erosion model. Simulation runs were performed for a conceptual alluvial channel, the results of channel plan-form and cross section changes suggest that the 2D model predictions agree acceptable with the classic theories of channel pattern …