Publication Date

Summer 2014

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Geology

Advisor

Emmanuel Gabet

Keywords

Dry ravel, Flume experiment, Granular flow, Hillslope evolution, Multiparticle transport, Sediment transport

Subject Areas

Geology; Geomorphology

Abstract

Recent studies of sediment transport have shifted from the traditional continuum paradigm to a particle-based approach. A previous dry ravel flume experiment on single particle transport showed that the angle of repose represented a shift between friction-controlled gentle slopes dominated by local transport and inertia-driven steep slopes dominated by nonlocal transport. My flume study explored multiparticle transport and the effect of sediment volume on transport distance. The flume experiments revealed a negative relationship between sediment volume and transport distance. As sediment volume increased, inter-particle collisions increased, which led to particle jamming and a reduction in transport distance. Furthermore, a higher transition slope was required for transport to shift into the inertial regime as a result of greater sediment volume.

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