Unsteady movement of ripples and dunes related to bed-load transport
Date
1965
Authors
Simons, D. B., author
Richardson, E. V., author
Nordin, C. F., Jr., author
Journal Title
Journal ISSN
Volume Title
Abstract
Two methods for computing bed-load transport from dune movement are considered. An equation based on the mean forward velocity and mean height of ripples and dunes is applied to flume data, and yields satisfactory results where the average dune shapes, velocities and heights can be determined accurately, as it the case for uniform two-dimensional flow. For unsteady flow, or for three-dimensional flow, where the size, shape, and movement of dunes varies in time and space, the volume of material passing through a series of incremental widths during some total time can be determined from sonic records. Bed-load transport rates are then estimated by integrating across the width of the stream. Applications of these concepts to field conditions are considered.
Description
CER65DBS-EVR-CFN2.
At head of title: International Association for Hydraulic Research.
Includes bibliographical references.
At head of title: International Association for Hydraulic Research.
Includes bibliographical references.
Rights Access
Subject
Sediment transport
Sedimentation and deposition