Accession Number : AD1025145


Title :   Bed-Load Dispersion: A Literature Review


Descriptive Note : Technical Report


Corporate Author : ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG United States


Personal Author(s) : Lewis,James W ; Sanchez,Alejandro ; Dahl,Travis ; Floyd,Ian


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1025145.pdf


Report Date : 01 Dec 2016


Pagination or Media Count : 39


Abstract : This Special Report documents available research pertaining to the dispersion of bed-load sediment transport, specifically the dispersion coefficient. This knowledge can inform the evaluation and improvement of existing U.S. Army Corps of Engineers (USACE) sediment transport models. A discussion is presented on normal and anomalous dispersion. Several aspects of bed-load dispersion are discussed, including whether the assumption of normal dispersion and isotropy are valid. Numerical dispersion coefficients are relative to the context of all considerations within a modeling framework, and affect sediment erosion, deposition, and the resulting water quality. This document is intended for scientists and engineers with a basic understanding of physics and numerical modeling of sediment transport.


Descriptors :   advection , sediments , DIFFUSION , Sedimentation , mixing , LITERATURE SURVEYS , coefficients , models


Subject Categories : Hydrology, Limnology and Potamology


Distribution Statement : APPROVED FOR PUBLIC RELEASE