Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 57 for “"hydraulic model"”.
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Hydraulic model study of a manhole junction
… was the experimental investigation of the hydraulics of a flow-through manhole with one lateral connection. An attempt was made to use the conservation of momentum principle to develop a mathematical relationship which satisfied the data obtained in the model study. Three forms of the …
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Development of a fully implicit two-fluid, thermal-hydraulic model for boiling water reactor transient analysis
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1980.
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Integration of hydraulic model (HEC-RAS) and geographical information system (GIS) in development flood evacuation center along Sembrong River sea
Flood is a short-lived event, causes by the continuous rain that leads to overflow of river water to river bank. The issues regarding flood event specially involving the emergency response solution that can be viewed from the aspects of the evacuation center and its access route. Flood evacuation …
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The Effects of Varying Fresh Water Discharge on Dispersion in an Estuarine Hydraulic Model of the Lafayette River, Norfolk, Virginia
… the Lafayette River branch of the Chesapeake Bay Hydraulic Model, each successive test with an increase in the amount of fresh water discharged into the head of the river. This was done to study the response from varying river discharge on mixing parameters including the longitudinal dispersion …
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Enhanced Pump Schedule Optimization For Large Water Distribution Networks To Maximize Environmental And Economic Benefits
… algorithm. EPANET toolkit is used as the hydraulic solver of PEPSO. In addition to the EPANET toolkit, a module is developed for training and using an artificial neural network instead of the high fidelity hydraulic model to speed up the optimization process. A unique measure that is …
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Gap winds in a fjord : Howe Sound, British Columbia
… combination of observations and several types of models. Observations of winds in Howe Sound showed that gap wind strength varied considerably along the channel, across the channel and vertically. Generally, winds increase down the channel, are strongest along the eastern side, and are below 1000 …
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Hydraulic and geospatial analyses of stream engineering and habitat restoration near Los Lunas, NM
… include adjustment of a digital terrain model for hydraulic accuracy, the use of the digital terrain model and aerial imagery for the digitization of features used in hydraulic modeling, and the geospatial analyses of the resulting hydraulic model parameters of depth, velocity, and shear …
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Development and Evaluation of the Profile Synthesis Method for Approximate Floodplain Redelineation
… studies, using a variety of accepted methods to model and predict flood-prone areas. These methods are classified as detailed, limited detailed, or approximate, corresponding to varying levels of expense and accuracy. Current flood map revision activities across the nation typically consist of …
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Thermally Aware, Energy-Based Techniques for Improving Data Center Energy Efficiency
… The work takes a systematic approach to modeling the data center's airflow, thermodynamic and heat transfer characteristics - beginning with simplified, physics-inspired models and eventually developing a high-fidelity, experimentally validated thermo-hydraulic model of the data center's …
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Reproducing and Quantifying Spatial Flow Patterns of Ecological Importance with Two-Dimensional Hydraulic Models
… is poorly understood. One-dimensional (1-D) hydraulic models and two-dimensional (2-D) models that do not explicitly incorporate meso-scale topographic features are not capable of adequately reproducing the flow patterns found in channels having complex topography. Moreover, point …
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Bursts identification in water distribution systems
… of water network simulation. An extended network hydraulic simulator is used to model pressure dependent leakage terms. The presence of a burst changes the flow pattern and also pressure at network nodes which may be used to estimate the burst size and its location. The influence of such random …
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Implementation of a one-dimensional hydrodynamic model for the Middle Paraguay River Basin
A steady 1D hydraulic model (HEC-RAS) was implemented for the Middle Paraguay River Basin (MPRB), which comprises a reach between Porto Murtinho, Brazil, and Asunción, Paraguay. In order to prepare the model, first the topo-bathymetry was prepared by digitizing more than 10,000 depth points from …
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Comparison of Hydraulic Function and Channel-Floodplain Connectivity Between Actively and Passively Restored Reaches of Stroubles Creek 11 Years After Restoration
A hydraulic model was developed to determine differences in the hydraulic characteristics of three different reaches of an urban- and agriculturally-impacted stream in southwest Virginia. The three reaches all had cattle excluded from the channel in 2010. The farthest upstream, Treatment 1, was …
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Hydraulic modelling of Chicago Area Waterways System (CAWS) to assess the impact of hydrologic separation on water levels and potential flooding during extreme rainfall events in Chicago, Illinois
An unsteady 1D hydraulic model (HEC—RAS) was implemented for the Chicago Area Waterways System (CAWS) for two configurations: i) current conditions, and i) physical separation with barriers. Hydrologic conditions were those for the 100-year storm event observed in September 2008. Combined Sewer …
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Drone Imagery Applied to Enhance Flood Modeling
Accessible flood modeling for low-resource, data-scarce communities currently does not exist. This paper proposes using drone imagery to compensate for the lack of other flood modeling data (i.e. streamflow measurements). Three flood models were run for Dzaleka Refugee Camp, located in Dowa, …
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The use of joint probability analysis to predict flood frequency in estuaries and tidal rivers
… which combines traditional flood risk modelling techniques with statistical dependence to define the relationship between the hydrological variables. Dependence between river flow, tide and surge is assessed for a case study area of Lewes, East Sussex, UK, a town which is prone to both …
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Computer-based decision-support methods for hydrological ecosystem services management
… integrating these algorithms with the watershed model Soil and Water Assessment Tool (SWAT), and the hydraulic model Storm Water Management Model (SWMM). This dissertation first develops an information theoretic approach to global sensitivity analysis for distributed models, demonstrated using …
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Pulse de-icing for aircraft applications
… a transient thermal-hydrodynamic numerical model that accounts for multiple phases and materials, specific and latent heating effects, melt layer hydrodynamics, as well as boundary layer effects. To identify optimal de-icing strategies, we use our model to study the effects of heater …
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Making the Case for Tailored Stormwater Management
… and maximize downstream benefit. A hydrologic/hydraulic model for a watershed in Blacksburg, Virginia, is used to evaluate downstream results based on implementation of several alternative SWM strategies currently practiced within the United States. Results show none of the strategies meet the …
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