 |
| Titel |
Tracer dispersion in bedload transport |
| VerfasserIn |
E. Lajeunesse, O. Devauchelle, M. Houssais, G. Seizilles |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7340
|
| Digitales Dokument |
URL |
| Erschienen |
In: Sediment Transport and Landscape Dynamics (SALADYN) Workshop 2012 ; Nr. 37 (2013-12-17), S.1-6 |
| Datensatznummer |
250086180
|
| Publikation (Nr.) |
 copernicus.org/adgeo-37-1-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| Bedload particles entrained by rivers tends to disperse as they move
downstream. In this paper, we use the erosion-deposition model of
Charru et al. (2004) to describe the velocity and the spreading of a plume of
tracer particles. We restrict our analysis to steady-state transport above a
flat bed of uniform sediment. The transport of tracer particles is then
controlled by downstream advection and particle exchange with the immobile
bed. After a transitional regime dominated by initial conditions, the
evolution of a plume of markers tends asymptotically towards classical
advection-diffusion: its average position grows linearly with time, whereas
it spreads like the square root of time. |
| |
|
| Teil von |
|
|
|
|
|
|
|