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Application Of A Two Dimensional Model Of Hydrodynamics To The Lower Approach Of The New Kentucky Lock Tennessee River Kentucky
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Book Synopsis Application of a Two-Dimensional Model of Hydrodynamics to the Lower Approach of the New Kentucky Lock, Tennessee River, Kentucky by :
Download or read book Application of a Two-Dimensional Model of Hydrodynamics to the Lower Approach of the New Kentucky Lock, Tennessee River, Kentucky written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because the existing Kentucky Lock is operating at capacity, an additional 1,200 ft long by 110 ft wide lock is projected to be necessary to satisfy future capacity requirements. The new lock features a through the sill intake that carries flow to a multiport filling and emptying system. Two alternatives for the lock discharge outlet system were proposed: (1) an interlaced lateral system located in the lower lock approach, (2) a landside channel that discharged downstream of the lower approach guide wall. The two dimensional (2D), depth averaged flow model, HIVEL2D, was used to simulate the unsteady velocities and water surface elevations in the lower lock approach resulting from lock emptying operations. The HIVEL2D model was chosen for this study because it provides numerically stable solutions for advection dominated flow containing large gradients in the flow variables. The HIVEL2D code was modified to allow specification of time dependent inflow boundary conditions. Simulations of the flow conditions in the lower lock approach for the proposed 1,200 ft lock were performed to evaluate the interlaced lateral and landside channel discharge alternatives.
Book Synopsis Application of a Two-Dimensional Model of Hydrodynamics to the Lower Approach of the New Kentucky Lock, Tennessee River, Kentucky by :
Download or read book Application of a Two-Dimensional Model of Hydrodynamics to the Lower Approach of the New Kentucky Lock, Tennessee River, Kentucky written by and published by . This book was released on 1998 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because the existing Kentucky Lock is operating at capacity, an additional 1,200 ft long by 110 ft wide lock is projected to be necessary to satisfy future capacity requirements. The new lock features a through the sill intake that carries flow to a multiport filling and emptying system. Two alternatives for the lock discharge outlet system were proposed: (1) an interlaced lateral system located in the lower lock approach, (2) a landside channel that discharged downstream of the lower approach guide wall. The two dimensional (2D), depth averaged flow model, HIVEL2D, was used to simulate the unsteady velocities and water surface elevations in the lower lock approach resulting from lock emptying operations. The HIVEL2D model was chosen for this study because it provides numerically stable solutions for advection dominated flow containing large gradients in the flow variables. The HIVEL2D code was modified to allow specification of time dependent inflow boundary conditions. Simulations of the flow conditions in the lower lock approach for the proposed 1,200 ft lock were performed to evaluate the interlaced lateral and landside channel discharge alternatives.
Book Synopsis Application of a Two-dimensional Model of Hydrodynamics to the Lower Approach of the New Kentucky Lock, Tennessee River, Kentucky by : Richard L. Stockstill
Download or read book Application of a Two-dimensional Model of Hydrodynamics to the Lower Approach of the New Kentucky Lock, Tennessee River, Kentucky written by Richard L. Stockstill and published by . This book was released on 1998 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lower Cumberland and Tennessee Rivers Navigation Feasibility Report, Kentucky Lock Addition by :
Download or read book Lower Cumberland and Tennessee Rivers Navigation Feasibility Report, Kentucky Lock Addition written by and published by . This book was released on 1992 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Kentucky Project by : Tennessee Valley Authority
Download or read book The Kentucky Project written by Tennessee Valley Authority and published by . This book was released on 1951 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kentucky Dam, the lowermost and the largest of the multiple-purpose projects of the Tennessee River system, is the key to effective control of discharges from the Tennessee, the largest tributary of the Ohio River. Located at river mile 22.4, Kentucky Dam is only 67.4 river-miles above Cairo, Illinois, and its large reservoir with more than 4,000,000 acre-feet of flood storage capacity occupies as strategic position for the reduction of flood crests on the lower Ohio and Mississippi Rivers. The navigation lock at this project forms the lower gateway to the 184-mile long Kentucky Reservoir, one of a chain of nine reservoirs extending a year-round 9-foot navigation channel more than 600 miles to Knoxville, Tennessee, and connects this system of reservoirs to the major inland waterways of the great central Mississippi Valley with outlets for navigation to the Great Lakes and the Gulf of Mexico.
Book Synopsis Navigation Conditions on the Lower Cumberland River, Kentucky by : Louis J. Shows
Download or read book Navigation Conditions on the Lower Cumberland River, Kentucky written by Louis J. Shows and published by . This book was released on 1979 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is concerned with a short reach of the Cumberland River just downstream of Barkley Lock and Dam. The reach is narrow and of irregular alignment with some very sharp bends and two fixed-span highway bridges, one located just downstream of the lower lock approach and the other located just downstream of a sharp bend. Currents in the reach are affected by continuous changes in powerhouse releases and changes in stages on the Ohio River located about 30 miles downstream of the dam. The model investigation was primarily concerned with navigation conditions in the lower lock approach and in the reach downstream and with the development of plans as required to provide satisfactory navigation conditions for both upbound and downbound traffic. A fixed-bed model reproducing Barkley Dam, the powerhouse, the portion of the lock downstream of the dam, and about 7.3 miles of the Cumberland River to an undistorted scale of 1:120 was used for the investigation. Results of the investigation indicated that with existing conditions navigation conditions are difficult and hazardous for large tows and are affected by changes in powerhouse release, eddy currents, high velocities, and sharp bends. Conditions could be improved by increasing the interval between the increase or decrease of the number of powerhouse units in operation, adding dikes downstream of the powerhouse and lower lock guard wall, and increasing the width of channel and realignment of the banks in the sharp bends.
Book Synopsis Modeling Hydrodynamics and Water Quality in Herrington Lake, Kentucky by :
Download or read book Modeling Hydrodynamics and Water Quality in Herrington Lake, Kentucky written by and published by . This book was released on 2000 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of a Two-dimensional Model of Hydrodynamics to San Timoteo Creek Flood-control Channel, California by : Richard L. Stockstill
Download or read book Application of a Two-dimensional Model of Hydrodynamics to San Timoteo Creek Flood-control Channel, California written by Richard L. Stockstill and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Generalized Free Surface Flow Models Using Finite Element Techniques by : D. Michael Gee
Download or read book Development of Generalized Free Surface Flow Models Using Finite Element Techniques written by D. Michael Gee and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two finite element hydrodynamic models, one for two-dimensional free surface flow in the horizontal plane and one for the vertical plane are being evaluated. Although the models are formulated to solve dynamic flow problems, all work to date has been with steady state solutions. Recent research has focused on mass continuity performance of the models, proper boundary condition specification, and comparison with finite difference techniques. The objective of this research is to develop generalized mathematical models for routine use by the engineering community. This paper presents recent results of evaluation and application of the models. (Author).
Book Synopsis Cumberland River and Tributaries, Kentucky and Tennessee by : United States. Congress. House. Committee on Rivers and Harbors
Download or read book Cumberland River and Tributaries, Kentucky and Tennessee written by United States. Congress. House. Committee on Rivers and Harbors and published by . This book was released on 1946 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Application of a Two-dimensional Hydrodynamic Model for Riverine Floodplain Environments by : Stephen Wayne Andrews
Download or read book Development and Application of a Two-dimensional Hydrodynamic Model for Riverine Floodplain Environments written by Stephen Wayne Andrews and published by . This book was released on 2007 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Shallow Water Flows Using the Discontinuous Galerkin Method by : Abdul A. Khan
Download or read book Modeling Shallow Water Flows Using the Discontinuous Galerkin Method written by Abdul A. Khan and published by CRC Press. This book was released on 2014-03-03 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Replacing the Traditional Physical Model Approach Computational models offer promise in improving the modeling of shallow water flows. As new techniques are considered, the process continues to change and evolve. Modeling Shallow Water Flows Using the Discontinuous Galerkin Method examines a technique that focuses on hyperbolic conservation laws and includes one-dimensional and two-dimensional shallow water flows and pollutant transports. Combines the Advantages of Finite Volume and Finite Element Methods This book explores the discontinuous Galerkin (DG) method, also known as the discontinuous finite element method, in depth. It introduces the DG method and its application to shallow water flows, as well as background information for implementing and applying this method for natural rivers. It considers dam-break problems, shock wave problems, and flows in different regimes (subcritical, supercritical, and transcritical). Readily Adaptable to the Real World While the DG method has been widely used in the fields of science and engineering, its use for hydraulics has so far been limited to simple cases. The book compares numerical results with laboratory experiments and field data, and includes a set of tests that can be used for a wide range of applications. Provides step-by-step implementation details Presents the different forms in which the shallow water flow equations can be written Places emphasis on the details and modifications required to apply the scheme to real-world flow problems This text enables readers to readily understand and develop an efficient computer simulation model that can be used to model flow, contaminant transport, and other aspects in rivers and coastal environments. It is an ideal resource for practicing environmental engineers and researchers in the area of computational hydraulics and fluid dynamics, and graduate students in computational hydraulics.
Book Synopsis Use of a Two-dimensional Flow Model to Quantify Aquatic Habitat by : D. Michael Gee
Download or read book Use of a Two-dimensional Flow Model to Quantify Aquatic Habitat written by D. Michael Gee and published by . This book was released on 1985 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the impacts of potential hydropower retrofits on downstream flow distributions at Lock and Dam No. 8 on the upper Mississippi River. The model used solves the complete Reynolds equations for two-dimensional free-surface flow in the horizontal plane using a finite element solution scheme. RMA-2 has been in continuing use and development at the Hydrologic Engineering Center and elsewhere for the past decade. Although designed primarily for the simulation of hydraulic conditions, RMA-2 may be used in conjunction with related numerical models to simulate sediment transport and water quality. In this study, velocity distributions were evaluated with regard to environmental, navigational and small-boat safety considerations. Aquatic habitat was defined by depth, substrate type and current velocity. Habitat types were quantified by measuring the areas between calculated contours of velocity magnitude (isotachs) for existing and project conditions. The capability for computing and displaying isotachs for the depth-average velocity, velocity one foot from the bottom and near the water surface was developed for this study. The product of this study effort is an application of the RMA-2 model that allows prediction of structural aquatic habitat in hydraulicaly complex locations. Elements of the instream flow group methodology could be incorporated to provide detailed predictions of impacts to habitat quality. Calibration of the numerical model to field measurements of velocity magnitude and direction is also described.
Book Synopsis A Novel Framework for Uncertainty Propagation in River Systems Based on Performance Graphs Using Two-dimensional Hydrodynamic Modeling by : Christopher H. Gifford-Miears
Download or read book A Novel Framework for Uncertainty Propagation in River Systems Based on Performance Graphs Using Two-dimensional Hydrodynamic Modeling written by Christopher H. Gifford-Miears and published by . This book was released on 2014 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a novel approach for propagation of uncertainty in river systems. Errors in data observations and predictions (e.g., stream inflows), in model parameters, and resulting from the discretization of continuous systems, all point to the need to accurately quantify the amount of uncertainty carried through the modeling process. In the proposed framework, stochastic processes are incorporated directly into the physical description of the system (e.g., river flow dynamics) with the goal of better modeling uncertainties (both aleatoric and epistemic) and hence, reducing the ranges of the confidence intervals on quantities of interest. We represent uncertainty in stream inflows via an error term modeled as a stochastic process. Stochastic collocation is then used to discretize random space. This non-intrusive approach is both more efficient than Monte-Carlo methods and is as flexible in its application. The flow dynamics are simulated efficiently using the performance graphs approach implemented in the OSU Rivers model. For one-dimensional unsteady flow routing, the performance graph (PG) approach has been shown to be accurate, numerically efficient, and robust. The Hydraulic Performance Graph (HPG) of a channel reach graphically summarizes the dynamic relation between the flow through and the stages at the ends of the reach under gradually varied flow (GVF) conditions, while the Volumetric Performance Graph (VPG) summarizes the corresponding storage. The hydraulic routing for the entire system consists of dividing the river system into reaches and pre-computing the hydraulics for each of these reaches independently using a steady flow model. Then, a non-linear system of equations is solved that is assembled based on information summarized in the systems' performance graphs, the reach-wise equation of conservation of mass, continuity and water stage compatibility conditions at the union of reaches (nodes), and the system boundary conditions. For complex flows in river systems such as when there is flow over floodplains, the dynamic relation between water stages and flow in a river reach is best represented by depth averaged two-dimensional hydrodynamic models. The applicability of two-dimensional flow modeling for the construction of PGs for unsteady flow routing in complex river networks is explored. To illustrate application of the uncertainty propagation framework and PGs derived from two-dimensional flow models, a test case is presented that examines uncertainty quantification and flood routing through a complex section of the Fraser River in British Columbia.
Book Synopsis Application of a Two-dimensional Model of Hydrodynamics and Water Quality (CE-QUAL-W2) to DeGray Lake, Arkansas by : James L. Martin
Download or read book Application of a Two-dimensional Model of Hydrodynamics and Water Quality (CE-QUAL-W2) to DeGray Lake, Arkansas written by James L. Martin and published by . This book was released on 1987 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Mathematical Model for Unsteady-flow Computations Through the Complete Spectrum of Flows on the Lower Ohio River by : Billy H. Johnson
Download or read book A Mathematical Model for Unsteady-flow Computations Through the Complete Spectrum of Flows on the Lower Ohio River written by Billy H. Johnson and published by . This book was released on 1977 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of a Two-dimensional Model of Hydrodynamics to San Timoteo Creek Flood-control Channel, California by : Richard L. Stockstill
Download or read book Application of a Two-dimensional Model of Hydrodynamics to San Timoteo Creek Flood-control Channel, California written by Richard L. Stockstill and published by . This book was released on 1994 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
