Results Of A Two Dimensional Hydrodynamic And Sediment Transport Model To Predict The Effects Of The Phased Construction And Operation Of The Olmsted Locks And Dam On The Ohio River Near Olmsted Illinois

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Publisher : DIANE Publishing
ISBN 13 : 1428910433
Total Pages : 68 pages
Book Rating : 4.30/5 ( download)

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Download or read book Results of a Two-Dimensional Hydrodynamic and Sediment-Transport Model to Predict the Effects of the Phased Construction and Operation of the Olmsted Locks and Dam on the Ohio River near Olmsted, Illinois written by and published by DIANE Publishing. This book was released on with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : C. Russell Wagner
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.01/5 ( download)

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Download or read book Results of a Two-dimensional Hydrodynamic and Sediment-transport Model to Predict the Effects of the Phased Construction and Operation of the Olmsted Locks and Dam on the Ohio River Near Olmsted, Illinois written by C. Russell Wagner and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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ISBN 13 :
Total Pages : 1102 pages
Book Rating : 4.17/5 ( download)

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Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2004 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Abdul Shakoor
Publisher : Springer
ISBN 13 : 3319931334
Total Pages : 118 pages
Book Rating : 4.33/5 ( download)

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Download or read book IAEG/AEG Annual Meeting Proceedings, San Francisco, California, 2018 - Volume 4 written by Abdul Shakoor and published by Springer. This book was released on 2018-08-25 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is one out of six IAEG XIII Congress and AEG 61st Annual Meeting proceeding volumes, and deals with topics related to dams, tunnels, groundwater resources, and climate change. The theme of the IAEG/AEG Meeting, held in San Francisco from September 17-21, 2018, is Engineering Geology for a Sustainable World. The meeting proceedings analyze the dynamic role of engineering geology in our changing world. The meeting topics and subject areas of the six volumes are: Slope Stability: Case Histories, Landslide Mapping, Emerging Technologies; Geotechnical and Environmental Site Characterization; Mining, Aggregates, Karst; Dams, Tunnels, Groundwater Resources, Climate Change; Geologic Hazards: Earthquakes, Land Subsidence, Coastal Hazards, and Emergency Response; and Advances in Engineering Geology: Education, Soil and Rock Properties, Modeling.

Author : Ganesh Raj Ghimire
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.17/5 ( download)

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Download or read book Seveloping Sediment Transport and Deposition Prediction Model of Lower Ohio River Near the Olmsted Locks and Dam Area written by Ganesh Raj Ghimire and published by . This book was released on 2016 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study focuses on the sediment deposition and consequent dredging issues in Lower Ohio River at the Olmsted Locks and Dam area-River mile (RM)-964.4 during the ongoing in-the-wet construction methodology. The study reach is between Locks and Dam 53 (RM 962.6) at upstream, and RM 970 at downstream. One dimensional (1-D) HEC-RAS numerical modeling in conjunction with Arc-GIS was employed. Stream flow measurements, velocity, incoming sediment concentration, bed gradation, and annual hydrographic survey data acquired from public archives of USGS and USACE Louisville District were used as inputs. The model was subjected to the 1-D quasi-unsteady and completely unsteady sediment transport module, available in the latest HEC-RAS 5.0 Beta release. Calibration and validation of the hydrodynamic and sediment models were performed using measured water surface elevation, velocity, and sediment loads at measured sections. Post-model calibration and validation, deposition to excavated cross-sections for future dam shells at Olmsted was predicted, which warrants dredging. The study attempted to analyze the sediment transport trend with the focus on deposition at Olmsted Locks and Dam area using the sensitivity analysis approach of transport capacity functions. Moreover, the capability of 1-D HEC-RAS quasi-unsteady and completely unsteady models were assessed in prediction of sediment deposition in the construction area (dam shells excavation area). A temporal deposition prediction model was developed that can potentially replace the current ad-hoc approach used to determine the dredging schedule. Likewise, a representative environmental risk associated with sedimentation in the study area was examined. The model can potentially be used as a decision support tool to analyze the long term impact of sedimentation in the vicinity of Olmsted Locks and Dam if further updates on the river bathymetry, and specific field data are supplemented to the model.

Author : Davide Motta
Publisher :
ISBN 13 :
Total Pages : 334 pages
Book Rating : 4.47/5 ( download)

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Download or read book Two-dimensional Hydrodynamic, Sediment Transport and Water Quality Model for Bubbly Creek, Chicago, Illinois written by Davide Motta and published by . This book was released on 2008 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : David Gonzalez-Rodriguez (Ph. D.)
Publisher :
ISBN 13 :
Total Pages : 133 pages
Book Rating : 4.44/5 ( download)

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Download or read book Modeling of Nearshore Hydrodynamics for Sediment Transport Calculations written by David Gonzalez-Rodriguez (Ph. D.) and published by . This book was released on 2006 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis analyzes and improves Tajima's (2004) nearshore hydrodynamic model. Tajima's simple model accurately predicts long-shore sediment transport along long, straight beaches, while cross-shore transport predictions differ from observations. A better prediction of cross-shore transport requires improvement of the hydrodynamic model. We first contrast Tajima's model with other hydrodynamic models. To improve the characterization of incident waves, we examine a number of joint probability distributions of wave heights and periods. These distributions are then used to develop a probabilistic wave-by-wave hydrodynamic description based on Tajima's monochromatic wave model. We derive the model governing equations for the unsteady case and detail their numerical implementation. This unsteady model is applied to study the effect of a wave beat normally incident on a plane sloping beach. We use this case to illustrate the relevance of the unsteady generalization to sediment transport calculations.

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.20/5 ( download)

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Download or read book Hydrodynamic and Sediment Transport Study of Sudbury River, Massachusetts written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical models were used to determine the transport potential for contaminated sediments in two reaches of the Sudbury River near Framingham, Massachusetts. These two reaches are comprised of two small (narrow) reservoirs, one discharging into the other. They are essentially riverine in nature at flows characteristic of this study. A computational hydrodynamic model (RMA2) of the reaches was developed. Several known worst case flood conditions were simulated and the model verified. A sediment transport model (SED2D) was then run using the hydrodynamic responses as the driving force to erode, transport, and deposit sediments. The results of the simulation indicate a potential movement of contaminated sediments in the constricted and shallow areas of the reservoirs for the Standard Project Flood (SPF) conditions. For the lower flow test conditions, 3-year, 14-year, and 100-year flood frequencies, the numerical model computer simulations predicted movement of only negligible amounts of contaminated sediments. Only at the highest flow conditions (SPF) was the movement of sediment considered significant.

Author : Danielle Rae Nicole Tarpley
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.98/5 ( download)

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Download or read book Temporal Variability in Cohesive Sediment Dynamics in a Partially Mixed Estuary, the York River Estuary, Virginia, USA written by Danielle Rae Nicole Tarpley and published by . This book was released on 2020 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fine-grained material such as silts and clays are the predominant sediment type in low energy systems such as micro-tidal embayments and estuaries. Due to its cohesive nature, fine sediment typically moves through marine systems as aggregated particles, or flocs, rather than as individual mineral grains. The particle's components, local hydrodynamics, and concentration influence floc size, density, and fall velocity. These, in turn, impact suspended sediment transport, which complicates predictions of the fate of sediment for water quality, contaminant distribution, and dredging purposes in these systems. This dissertation used a state-of-the-art modeling system and observations to examine the variability in sediment distribution due to cohesive processes along a partially mixed estuary and to determine the role of flocculation on sediment transport for a muddy site within the York River estuary, Virginia. The Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system was used to simulate the hydrodynamics and suspended sediment transport in a muddy estuarine system. The model accounted for flocculation dynamics with a population balance model, FLOCMOD, changes in the erosion of sediment from the bed due to compaction or bed consolidation, and sediment-induced density gradients. The sensitivity of the sediment distribution was performed using an idealized two-dimensional (vertical and longitudinal) model that produced key estuarine features such as salinity-driven circulation and an estuarine turbidity maximum (ETM). The reference model included the effects of flocculation, bed consolidation, and sediment-induced density gradients. Results from the reference model were compared to test cases, each of which removed one of these processes. This showed that the effects of flocculation on suspended sediment concentrations (SSC) were most significant in the surface waters and in the ETM; whereas bed consolidation decreased SSC along the full length of the estuary. Another test case demonstrated that calculations of SSC and median floc diameter (D50) were sensitive to the number of sediment classes used to represent the floc population. The capabilities of the idealized two-dimensional estuary were extended and used to examine the contribution of flocculation compared to other sediment transport mechanisms such as advection, diffusion, settling, and erosion. The dominant processes that impacted the sediment mass balance in the idealized estuary were flocculation, vertical diffusion, and erosion. Next, the D50 produced by FLOCMOD in the idealized estuary was compared to a theoretical equilibrium floc size (Deq) estimated based on the ratio of SSC to the square root of the shear rate (G). This analysis also produced an estimate for a timescale for flocculation. In general, D50 reached Deq in the bottom boundary of the estuary when the flocculation timescales were on the order of minutes. However, immediately above the sediment bed, Deq was very similar to D50 when erosion was minimal or when finer flocs were eroded from the bed. However, the computed D50 most often differed widely from Deq, indicating that equilibrium theory was not appropriate for much of the idealized estuary. To facilitate the direct application of the flocculation model to the York River estuary, a one-dimensional (vertical) model was designed using observations of hydrodynamics and floc properties from the Claybank site for the vertical water column structure. The sensitivity of SSC and floc distribution to the parameterization of FLOCMOD was assessed using a model representing a spring-neap tidal cycle. The SSC was more sensitive to parameterization in the bottom boundary layer, D50 was less sensitive than SSC, and the grain size distribution width (spread) was more sensitive to the fractal dimension. Model results were then compared to observations to choose parameters to represent the floc population in the York River estuary. Parameterization was challenging, but the preferred representation for the York floc population had a low relative error for SSC and acceptable error for the distribution mode and spread. For the spring-neap tidal cycle in general, vertical diffusion, settling, and erosion accounted for more sediment mass transport than flocculation, but flocculation played an important role in the vertical distribution of sediment via changes in floc size.

Author : Vladimir Novotny
Publisher : IWA Publishing
ISBN 13 : 1843391368
Total Pages : 458 pages
Book Rating : 4.64/5 ( download)

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Download or read book Cities of the Future written by Vladimir Novotny and published by IWA Publishing. This book was released on 2007-09-04 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is developed from and includes the presentations of leading international experts and scholars in the 12-14 July, 2006 Wingspread Workshop. With urban waters as a focal point, this book will explore the links between urban water quality and hydrology, and the broader concepts of green cities and smart growth. It also addresses legal and social barriers to urban ecological sustainability and proposes practical ways to overcome those barriers. Cities of the Future features chapters containing visionary concepts on how to ensure that cities and their water resources become ecologically sustainable and are able to provide clean water for all beneficial uses. The book links North American and Worldwide experience and approaches. The book is primarily a professional reference aimed at a wide interdisciplinary audience, including universities, consultants, environmental advocacy groups and legal environmental professionals.