Calibration Verification And Application Of A Two Dimensional Flow Model
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Calibration Verification And Application Of A Two Dimensional Flow Model
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Author : D. Michael Gee
language : en
Publisher:
Release Date : 1983
Calibration Verification And Application Of A Two Dimensional Flow Model written by D. Michael Gee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Finite element method categories.
Use Of A Two Dimensional Flow Model To Quantify Aquatic Habitat
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Author : D. Michael Gee
language : en
Publisher:
Release Date : 1985
Use Of A Two Dimensional Flow Model To Quantify Aquatic Habitat written by D. Michael Gee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Aquatic biology categories.
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.
Role Of Small Computers In Two Dimensional Flow Modeling
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Author : D. Michael Gee
language : en
Publisher:
Release Date : 1985
Role Of Small Computers In Two Dimensional Flow Modeling written by D. Michael Gee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Hydraulics categories.
Two Dimensional Floodplain Modeling
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Author : D. Michael Gee
language : en
Publisher:
Release Date : 1990
Two Dimensional Floodplain Modeling written by D. Michael Gee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Floodplain management categories.
A two-dimensional horizontal finite element numerical model (RMA-2) was applied to a 15 mile (24 km) river channel-floodplain reach in West Germany. Previous applications of such models have been restricted to much smaller scales. The results indicate that finite element schemes may successfully estimate river stage in large scale floodplain applications. Computed stage hydrographs compared well with observed data using loss coefficients within expected ranges. Two-dimensional flow models have been applied to certain classes of river channel problems. Applications have included detailed analyses of flow patterns near structures such as bridges and floodplains. In all these problems the scale of interest has been small, e.g. reaches of river a few river widths long. Many estuary studies have been done that were of large scale; some of these utilized a hybrid (numerical plus physical) modeling technique. In a review of the application of finite element methods to river channels, Samuels reported that the river channel was resolved separately from the floodplain in only two studies. Missing in previous work is attention to large scale floodplain modeling. The work reported in this paper focuses on the feasibility and accuracy of applying a two-dimensional flow model to a large floodplain. Traditional floodplain studies have used semi-empirical flow routing with steady, one-dimensional computation of water surface elevations to define inundated areas. Keywords: Army Corps of Engines. (kr).
Calibration And Validation Of A Two Dimensional Hydrodynamic Model Of The Ohio River Jefferson County Kentucky
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Author : C. Russell Wagner
language : en
Publisher:
Release Date : 2001
Calibration And Validation Of A Two Dimensional Hydrodynamic Model Of The Ohio River Jefferson County Kentucky written by C. Russell Wagner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Government publications categories.
Hec 1 And Hec 2 Applications On The Microcomputer
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Author : Harry W. Dotson
language : en
Publisher:
Release Date : 1987
Hec 1 And Hec 2 Applications On The Microcomputer written by Harry W. Dotson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with HEC-1 (Computer program) categories.
Hec 2 Water Surface Profiles Program
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Author : Vernon R. Bonner
language : en
Publisher:
Release Date : 1992
Hec 2 Water Surface Profiles Program written by Vernon R. Bonner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with HEC-2 (Computer program) categories.
Modeling Water Resource Systems For Water Quality Management
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Author : R. G. Willey
language : en
Publisher:
Release Date : 1996
Modeling Water Resource Systems For Water Quality Management written by R. G. Willey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with HEC-5 (Computer program) categories.
A Generalized Simulation Model For Reservoir System Analysis
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Author : Richard J. Hayes
language : en
Publisher:
Release Date : 1992
A Generalized Simulation Model For Reservoir System Analysis written by Richard J. Hayes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Flood control categories.
This paper overviews the general features of computer program 'HEC-5, Simulation of Flood Control and Conservation Systems', with emphasis on the capabilities of the most recent release of HEC-5, Version 7.2, dated March 1991. HEC-5 can simulate the essential features and operation goals and constraints of simple or complex systems with simulation intervals ranging from minutes to one month. Single event flood analysis and period of record conservation analysis may be accomplished with the model. Flood control analysis includes balanced system operation for downstream damage centers with consideration of forecasted local flows and hydrologic routing. In addition, induced surcharge operation based on spillway gate regulation schedules can be simulated. Hydropower analysis may include run-of-river, peaking, and pumped storage plants as well as system power operation. Water supply simulation can include reservoir and downstream flow requirements in addition to divers ions and return flows. Water Quality analysis can include simulation of temperature, dissolved oxygen, up to three conservative and up to three nonconservative constituents. Computer Programs, Simulation, Reservoirs, Flood Control, Reservoir Yield, Hydroelectric Power, Water Supply, Water Quality.
Hec River Analysis System Hec Ras
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Author : Gary W. Brunner
language : en
Publisher:
Release Date : 1994
Hec River Analysis System Hec Ras written by Gary W. Brunner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with HEC-RAS (Computer program) categories.