Download or read book Flood Routing in Ungauged Catchments Using Muskingum Methods written by Mesfin H. Tewolde and published by Universal-Publishers. This book was released on 2008-03-27 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: River stage or flow rates are required for the design and evaluation of hydraulic structures. Most river reaches are ungauged and a methodology is needed to estimate the stages, or rates of flow, at specific locations in streams where no measurements are available. Flood routing techniques are utilised to estimate the stages, or rates of flow, in order to predict flood wave propagation along river reaches. Models can be developed for gauged catchments and their parameters related to physical characteristics such as slope, reach width, reach length so that the approach can be applied to ungauged catchments in the region. The objective of this study is to assess Muskingum-based methods for flow routing in ungauged river reaches, both with and without lateral inflows. Using observed data, the model parameters were calibrated to assess performance of the Muskingum flood routing procedures and the Muskingum-Cunge method was then assessed using catchment derived parameters for use in ungauged river reaches. The Muskingum parameters were derived from empirically estimated variables and variables estimated from assumed river cross-sections within the selected river reaches used. Three sub-catchments in the Thukela catchment in KwaZulu-Natal, South Africa were selected for analyses, with river lengths of 4, 21 and 54 km. The slopes of the river reaches and reach lengths were derived from a digital elevation model. Manning roughness coefficients were estimated from field observations. Flow variables such as velocity, hydraulic radius, wetted perimeters, flow depth and top flow width were determined from empirical equations and cross-sections of the selected rivers. Lateral inflows to long river reaches were estimated from the Saint-Venant equation. Observed events were extracted for each sub-catchment to assess the Muskingum-Cunge parameter estimation method and Three-parameter Muskingum method. The extracted events were further analysed using empirically estimated flow variables. The performances of the methods were evaluated by comparing both graphically and statistically the simulated and observed hydrographs. Sensitivity analyses were undertaken using three selected events and a 50% variation in selected input variables was used to identify sensitive variables. The performance of the calibrated Muskingum-Cunge flood routing method using observed hydrographs displayed acceptable results. Therefore, the Muskingum-Cunge flood routing method was applied in ungauged catchments, with variables estimated empirically. The results obtained shows that the computed outflow hydrographs generated using the Muskingum-Cunge method, with the empirically estimated variables and variables estimated from cross-sections of the selected rivers resulted in reasonably accurate computed outflow hydrographs with respect to peak discharge, timing of peak flow and volume. From this study, it is concluded that the Muskingum-Cunge method can be applied to route floods in ungauged catchments in the Thukela catchment and it is postulated that the method can be used to route floods in other ungauged rivers in South Africa.

Download or read book Flood Routing Methods written by Vujica M. Yevjevich and published by . This book was released on 1960 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Routing of Floods Through River Channels written by United States. Army. Corps of Engineers and published by . This book was released on 1960 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Storage Flood Routing Without Coefficients written by Donald L. Brakensiek and published by . This book was released on 1966 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering and Design Routing of Floods Through River Channels written by United States. Army. Corps of Engineers and published by . This book was released on 1960 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography and Discussion of Flood routing Methods and Unsteady Flow in Channels written by Vujica M. Yevjevich and published by . This book was released on 1964 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Flood Routing Methods for a Rapidly Rising Hydrograph Routed Through a Very Wide Channel written by Michael Jay Shultz and published by . This book was released on 1992 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Flood Routing Methods for Natural Rivers written by Peter Erwin Weinmann and published by . This book was released on 1977 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography and Discussion of Flood routing Methods and Unsteady Flow in Channels written by Vujica M. Yevjevich and published by . This book was released on 1964 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Linear and Non linear Hydrologic Flood Routing Models on Four California Rivers and Relationship of Model Parameters to Channel Physical Characteristics written by Gregory L. Lindstadt and published by . This book was released on 1986 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparative Analysis of Flood Routing Methods written by Theodor Strelkoff and published by . This book was released on 1985 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Flood Routing Methods as Applied to the Osage River Basin written by Jesudasan Walter and published by . This book was released on 1951 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Storage and Flood Routing written by Rolland William Carter and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer Modeling of Free Surface and Pressurized Flows written by M. Hanif Chaudhry and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computers are widely used for the analysis, design, and operation of water resource projects. This gives accurate results, allowing the analysis of complex systems which may not have been possible otherwise, and the investigation and comparison of several different alternatives in a short time, thereby reducing the project costs, optimizing design, and efficient utilization of resources. This volume compiles an edited version of the lecture notes specially prepared by 14 well-known European and North American researchers. Part I deals with free-surface flows. Governing equations are derived and their solution by the finite-difference, finite-element, and boundary-integral methods are discussed. Then, turbulence models, three-dimensional models, dam-break flow models, sediment transport models, and flood routing models are presented. Part II is related to the modeling of steady and transient pressurized flows. Governing equations for both single and two-component flows are derived and numerical methods for their solution are presented. The modeling of water quality in pipe networks, of cooling water systems, and slow and rapid transients is then discussed.

Download or read book The Unit Hydrograph and Flood Routing written by Gerald T. McCarthy and published by . This book was released on 1939 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Muskingum Cunge Channel Flow Routing Method for Drainage Networks written by Jürgen Garbrecht and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Muskingum Method of Flood Routing written by Vijay P. Singh and published by . This book was released on 1980 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: