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Showing 1 to 19 of 19 for “"flow discharge"”.
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Ground Water Flow and Water Resources Investigation of the Auburn, Summers and Shakertown Springs Karst Ground Water Basins, Logan and Simpson Counties, Kentucky
… vulnerable to contamination, the springs often discharge and insufficient volume of water needed for public consumption and dilution of the City’s treated wastewater. Thus the City wishes to find an additional source of water and views nearby Shakertown Spring as a possibility. The study has …
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Effect of permeation of discharge characteristics of capacitive deionization process
… capacitive deionization process with permeating flow discharge (PFD). In PFD, the waste water is permeated through the porous electrodes rather than flowing in-between the electrodes as is the case in the conventional axial flow discharge (AFD) process.
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Field Use Of An Acoustic Surrogate System To Monitor Gravel Bed Load Flux
… bed load flux collected by physical samplers and flow discharge provided by a U.S. Geological Survey (USGS) gauging station. Results show that RMS and physical sediment data from this field test are not related due to the presence of flow noise. A more clear relationship was found between RMS and …
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Modeling Low Flow Hydraulics in Alluvial Channels (pools-Riffles, Open)
The investigation of the flow condition has become important in recent years as a means of determining critical levels of water pollution, aquatic habitat and instream flow needs. To assess these critical conditions, it is necessary to predict the hydraulic response of a river system to a given low …
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Modelling near-bank flow hydraulics
… to obtain highresolution, spatially distributed, flow data to characterize the near-bank fluid shear stresses that drive bank erosion. One possible solution is to use Computational Fluid Dynamics (CFD) models as a substitute for empirical data.<br/>Herein I evaluate a series of three-dimensional …
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ΕΝΑΠΟΘΕΣΗ ΑΜΟΡΦΟΥ ΥΔΡΟΝΩΜΕΝΟΥ ΠΥΡΙΤΙΟΥ ΣΤΗΝ ΕΚΚΕΝΩΣΗ ΑΙΓΛΗΣ ΤΟΥ ΣΙΛΑΝΙΟΥ. ΡΟΛΟΣΤΩΝ ΕΝΕΡΓΩΝ ΕΝΔΙΑΜΕΣΩΝ
… DEPOSITION PARAMETERS, SUCH AS PRESSURE, POWER FLOW, DISCHARGE GEOMETRY AND BUFFER-GAS DILUTION TO THE CONCENTRATION AND SPACE DISTRIBUTION OF SIH AND ELECTRONICALLY EXCITED SIH* RADICALS SIMULTANEOUSLY. THE RESULTS ARE CORRELATED WITH THE FILM CHARACTERISTICS SUCH AS DEPOSITION RATE, …
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Evidence of Hydro-Seismicity in the Tennessee Seismic Zone
Reservoir level and discharge data were collected for three Tennessee Valley Authority (TVA) dams (Chickamauga, Watts Bar and Douglas) on the Tennessee river in the Eastern Tennessee Seismic Zone (ETSZ). Earthquake catalog data was also collected for the ETSZ from 1980-2018. Well levels from 2 U.S. …
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The role of shredders in detrital dynamics of permanent and temporary streams
… the fastest leaf breakdown rates, highest low-flow POM concentrations, largest average POM particle sizes and greatest POM transport estimates. Temporary stream environments depressed shredder populations resulting in a reduction of detrital processing and POM transport. Microbial activity, …
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Storm Response and Water Balance of Temperate Rainforest Karst Watersheds: Tongass National Forest, Alaska
… catchments from unknown sources at different flow regimes. A dye trace was conducted in Windgate and Canyon Block watersheds. Two sinking streams were traced to one resurgence spring in Canyon Block, and four sinking streams were traced to one resurgence spring in Windgate. Water balance data …
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Evaluating the use of neural networks to predict river flow gauge values
… could be facing serious water shortages. River flow discharge rates are one factor that could contribute to improving water management, being able to predict a forecasted river flow value would provide support in the management of water resources. This research investigates the use of an …
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Hydrodynamic and water quality modelling of Chicago Area Waterway System (CAWS)
… for the engineering feat that reversed the flow of Chicago River (CR), an integral part of CAWS, westward away from lake Michigan into which it previously drained. The flow in CAWS is regulated with the help of controlling structures existing at the extremities of the system. Also present at …
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Sediment Transport and Bed Mobility in a Low-ordered Ephemeral Watershed
… sampled at the watershed outlet to determine flow discharge and sediment flux during approximately 21 flow events, from 1998 - 2007. Sediment collected in flow was measured for grain-size distribution to determine if specific grain-size fractions behave differently while in transport. The …
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Hydrogeology and geomorphology of two structurally dissimilar terranes in Pennsylvania
… and hydrologic characteristics.</p><p>Low streamflow characteristics, defined by base-flow recession curves, and streamflow duration, for 25 summer months, show that streams in the folded and faulted Valley and Ridge province have stronger base-flow regimes than those in the relatively undeformed …
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A new passive surface water flux meter for simultaneous measurement of contaminant and water fluxes in streams and rivers
… designs have been evaluated under constant flow conditions, the PSFM has never been used for measurement of pesticides or hormones and this is the first time that it has been tested under transient flow. Discharge through the PSFM is assessed by measuring miscible displacement of alcohol …
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River bifurcations: key processes, timescales and evolutionary trajectories
… majority or all the incoming water and sediment discharges towards the other bifurcate. Most studies in the literature either focused on the long-term equilibrium configurations of bifurcations or tailored their analysis on specific case studies, rarely addressing avulsion conditions. Moreover, …
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The effect of rainstorm movement on urban drainage network runoff hydrographs
… the effects of storm movement on the flood peak flows, and the underlying process controls. A broad theoretical framework is developed that uses characteristic time and space scales associated with stationary rainstorms as well as moving rainstorms. This study explores the relations between …
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Integrierte Modellierung von Durchflussdynamik und salinarer Stofftransportprozesse unter Berücksichtigung anthropogener Steuerungen am Beispiel der Unstrut
Durch die Stilllegung der Kali-Gewinnung und -Produktion zwischen 1990 und 1993 sowie die begonnene Rekultivierung der Kali-Rückstandshalden haben sich die Salzfrachteintragsbedingungen für die Fließgwewässer im "Südharz-Kalirevier" in Thüringen zum Teil deutlich verändert. Aufgrund erheblich …
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Sediment transport modelling at the catchment scale in Alpine streams
… by using a probability density function of water discharge. The mean annual sediment volumes produced using the empirical relations are used to calibrate the transport limitation parameter of the modified transport model, by providing a estimate of the distance from the equilibrium condition at …
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Estimating Flow Through Rock Weirs
… of knowledge exists relating to the stage-discharge relationship of these structures. Therefore, the goal of this research was to determine a weir equation and corresponding discharge coefficients that improve predictions of flow through rock weirs. A flume study was conducted to develop a …