Download or read book Longitudinal Dispersion in Non uniform Flow written by H. H. Carter and published by . This book was released on 1970 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-uniform flow is a flow in which the velocity at any given time changes from point to point along a streamline. In estuaries, such flows result from the cross-sectional area increasing in the downstream direction. A solution to the convective-diffusion equation for this type of estuary is obtained in terms of the estuarine geometry and the longitudinal diffusion coefficient. The model is applied to the results of two dye tracer experiments carried out in the upper Patuxent River during August 1969 from which the longitudinal dispersion coefficients were quantitated. The concept of a flushing velocity for an estuary is developed and defined. (Author).
Download or read book Longitudinal Dispersion in Non uniform Porous Media written by Khalid Mohtadullah and published by . This book was released on 1964 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longitudinal Dispersion Coefficient Estimation in Two Dimensional Open Channel Flow written by Quanquan Liang and published by . This book was released on 2014 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Longitudinal dispersivities are evaluated for two-dimensional open channel flow using a new velocity profile developed by Gomez (2006) as an alternative to the traditional "law of the wall" logarithmic profile commonly used. The modified profile improves on the logarithmic profile by incorporating a zero velocity gradient at the surface as well as a non-zero bottom slope, which is necessary for steady uniform flow. Non-dimensional forms of dispersivities are calculated based on Taylor's (1954) dispersivity equation using numerical integration with a polynomial approximation to enable integration of the indefinite integrals in that expression. While the velocities predicted by the traditional and modified profiles are relatively similar, significantly larger eddy viscosities are predicted with the new profile, and these are associated with slightly smaller longitudinal dispersivities. Flume experiments are performed to provide detailed velocity profile measurements, Reynolds stresses, and turbulent kinetic energy distributions. These data are used to compare the two profiles and to evaluate bottom shear stress and shear velocity for a range of conditions, and to provide a database for further research applications. The present results are meant to provide a stronger theoretical basis on which additional factors can be built for making final determinations of longitudinal dispersivity in the field. Further experiments are needed to directly measure longitudinal dispersivity and to confirm the present calculations.
Download or read book Longitudinal Dispersion in Nonuniform Isotropic Porous Media written by James E. Houseworth and published by . This book was released on 1984 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersion in Open Channel Flow written by Nobuhiro Yotsukura and published by . This book was released on 1964 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longitudinal Dispersion in Steady and Unsteady Pipe Flow written by James R. Hart and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis and Modelling of Non Steady Flow in Pipe and Channel Networks written by Vinko Jovic and published by John Wiley & Sons. This book was released on 2013-03-08 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis and Modelling of Non-Steady Flow in Pipe and Channel Networks deals with flows in pipes and channel networks from the standpoints of hydraulics and modelling techniques and methods. These engineering problems occur in the course of the design and construction of hydroenergy plants, water-supply and other systems. In this book, the author presents his experience in solving these problems from the early 1970s to the present day. During this period new methods of solving hydraulic problems have evolved, due to the development of computers and numerical methods. This book is accompanied by a website which hosts the author's software package, Simpip (an abbreviation of simulation of pipe flow) for solving non-steady pipe flow using the finite element method. The program also covers flows in channels. The book presents the numerical core of the SimpipCore program (written in Fortran). Key features: Presents the theory and practice of modelling different flows in hydraulic networks Takes a systematic approach and addresses the topic from the fundamentals Presents numerical solutions based on finite element analysis Accompanied by a website hosting supporting material including the SimpipCore project as a standalone program Analysis and Modelling of Non-Steady Flow in Pipe and Channel Networks is an ideal reference book for engineers, practitioners and graduate students across engineering disciplines.
Download or read book Transverse Dispersion in Liquid Flow Through Porous Media written by Eugene Sidney Simpson and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prediction of Traveltime and Longitudinal Dispersion in Rivers and Streams written by Harvey E. Jobson and published by . This book was released on 2001-03-01 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The possibility of a contaminant being accidentally or intentionally spilled upstream from a water supply is a constant concern to those diverting and using water from streams and rivers. A method of rapidly estimating traveltime or dispersion is needed for pollution control or warning systems on streams where data are limited. Discusses the theory of movement and dispersion of dissolved pollutants. Contains a summary of the methods used to collect time-of-travel info. Methods are recommended for estimating the rate of movement and attenuation of conservative pollutants based on an analysis of the data. The application of these results is illustrated by the use of 3 examples.
Download or read book Hydrodynamic Dispersion in Non uniform Flow Through Porous Media Taking Into Account Density and Viscosity Differences written by J. Bear and published by . This book was released on 1966 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longitudinal Dispersion by Velocity Gradients in Open Channel Flow written by Hugo B. Fischer and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersions of Pollutants in Estuary Type Flows written by Edward R. Holley and published by . This book was released on 1965 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersion from a Line Source in a Non uniform Flow Through a Porous Medium written by Raymond Patrick Canale and published by . This book was released on 1966 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longitudinal Dispersion in Two phase Continuous flow Operations written by Terukatsu Miyauchi and published by . This book was released on 1960 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Pollution written by J.J. Fried and published by Elsevier. This book was released on 1975-01-01 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater Pollution
Download or read book Geological Survey Water supply Paper written by and published by . This book was released on 1950 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Subsurface Waste Disposal by Means of Wells a Selective Annotated Bibliography written by Donald Robert Rima and published by . This book was released on 1971 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
