Topographic evolution of sandbars: Flume experiment and computational modeling
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Abstract
Measurements of sandbar formation and evolution were carried out in a laboratory flume and the topographic characteristics of these barforms were compared to predictions from a computational flow and sediment transport model with bed evolution. The flume experiment produced sandbars with approximate mode 2, whereas numerical simulations produced a bed morphology better approximated as alternate bars, mode 1. In addition, bar formation occurred more rapidly in the laboratory channel than for the model channel. This paper focuses on a steady-flow laboratory experiment without upstream sediment supply. Future experiments will examine the effects of unsteady flow and sediment supply and the use of numerical models to
simulate the response of barform topography to these influences.
Suggested Citation
Kinzel, P.J., Nelson, J.M., McDonald, R.R., Logan, B., 2010, Topographic evolution of sandbars: Flume experiment and computational modeling, 2nd Joint Federal Interagency Conference, Las Vegas, NV, June 27 - July 1, 2010, 8 p.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Topographic evolution of sandbars: Flume experiment and computational modeling |
| Year Published | 2010 |
| Language | English |
| Publisher | Joint Federal Interagency Sedimentation Conference 2010 |
| Contributing office(s) | National Research Program - Central Branch |
| Description | 8 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Conference Title | 2nd Joint Federal Interagency Conference |
| Conference Location | Las Vegas, NV |
| Conference Date | June 27 - July 1, 2010 |