Statistical Properties Of Bed Forms In Alluvial Channels In Relation To Flow Resistance
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Statistical Properties Of Bed Forms In Alluvial Channels In Relation To Flow Resistance
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Author : Venkata Subramanya Shastri Annambhotla
language : en
Publisher:
Release Date : 1969
Statistical Properties Of Bed Forms In Alluvial Channels In Relation To Flow Resistance written by Venkata Subramanya Shastri Annambhotla and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with River channels categories.
Stream Channel Stability
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Author : Neil L. Coleman
language : en
Publisher:
Release Date : 1981
Stream Channel Stability written by Neil L. Coleman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Mathematical models categories.
This report describes a series of experiments that were performed in a laboratory flume that was adapted to allow computer control of the independent experimental variables, and computer acquisition of data during experiments. The object of the study was to relate the Darcy-Weisbach resistance coefficient of an alluvial channel flow to the bed roughness as expressed by the standard deviation of bed elevation records (a measure of the dune and antidune roughness height). Since the Darcy-Weisbach coefficient in an alluvial channel shows considerable time variation even in supposedly steady uniform flows, and since the bed roughness, as measured from the time records of the bed elevation, is a stochastic quantity; time records of the Darcy-Weisbach coefficient and of the bed elevation were analyzed to obtain probability density functions, which were typified by means values and standard deviations of the relevant quantities. Autocorrelation functions of the time records were also computed and plotted. From these functions, time constants for variation of the resistance coefficient and for the propagation of bed forms were obtained. The Darcy-Weisbach resistance coefficient is of importance in the development of mathematical models of streamflow for predicting floodwave propagation, channel bed and bank modification, and the intensity of fluvial attack on channel protection or river training structures.
A Statistical Study Of Bed Forms In Alluvial Channels
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Author : Algert, James H.
language : en
Publisher:
Release Date : 1965
A Statistical Study Of Bed Forms In Alluvial Channels written by Algert, James H. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Runoff categories.
Stream Channel Stability
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Author : Joe C. Willis
language : en
Publisher:
Release Date : 1981
Stream Channel Stability written by Joe C. Willis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Mathematical models categories.
In a stable alluvial channel, no net erosion or deposition of sediment occurs on the average. The sediment supply rate from upstream is balanced by capacity of the flow to transport the bed material. Any successful channel design must maintain this equilibrium or establish it for channel reaches that are not stable. Design relationships between the bed material transport capacity and the hydraulic variables of flow are based primarily on data from relatively small test channels. Reliable data for equilibrium transport of bed material by flows over about twenty cfs are not adequate to insure that data from small flumes can be extrapolated to prototype designs. An investigation was conducted in the 250-ft long test channel at the USDA Sedimentation Laboratory to obtain additional data on equilibrium transport by flows up to 150 cfs. Data on the transport rates, flow friction factors, and statistical properties of the bed forms were obtained. The results are presented as basic variable correlations with the controlled variables of the experiments, depth and discharge, along with attempts to generalize the relationships by similitude principles. (Author).
Statistical Properties Of Dune Profiles
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Author : Carl F. Nordin
language : en
Publisher:
Release Date : 1971
Statistical Properties Of Dune Profiles written by Carl F. Nordin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Sand dunes categories.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1971
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Weights and measures categories.
Resistance To Flow In Alluvial Channels
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Author : Daryl B. Simons
language : en
Publisher:
Release Date : 1966
Resistance To Flow In Alluvial Channels written by Daryl B. Simons and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Alluvial streams categories.
Holocene Marine Sedimentation In The North Sea Basin
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Author : S. D. Nio
language : en
Publisher: John Wiley & Sons
Release Date : 2009-04-08
Holocene Marine Sedimentation In The North Sea Basin written by S. D. Nio and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-08 with Science categories.
A special publication of the International Association of Sedimentologists This comprehensive scientific book of more than 500 pages features chapters by various authors. Holocene Marine Sedimentation in the North Sea Basin address topics that include: ripple, megaripple and sandwave bedforms in South Wales; shoreline development in St Andrews Bay, Scotland; and the origin of ridges off the Zeeland coast. Highlighted research includes: measurements of suspended sediment concentrations made at stations on a sandy intertidal zone in South Wales, as well as another study of two cores from the southern side of the Norwegian Channel concerning geotechnical properties, texture, sedimentary structures and mineralogical composition.
Research Reports Supported By Office Of Water Research And Technology Received During The Period
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Author :
language : en
Publisher:
Release Date : 1969-07
Research Reports Supported By Office Of Water Research And Technology Received During The Period written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969-07 with Water categories.
Current Hydraulic Laboratory Research In The United States
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Author :
language : en
Publisher:
Release Date : 1970
Current Hydraulic Laboratory Research In The United States written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Hydraulic engineering categories.