T
Tobias Böhm
Publications - 8
Citations - 503
Tobias Böhm is an academic researcher. The author has contributed to research in topics: Bed load & Saltation (geology). The author has an hindex of 6, co-authored 8 publications receiving 445 citations.
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Entrainment and motion of coarse particles in a shallow water stream down a steep slope
TL;DR: In this paper, the authors investigated the entrainment, deposition and motion of coarse spherical particles within a turbulent shallow water stream down a steep slope and developed a birth-death immigration-emigration Markov process to describe the particle exchanges between the bed and the water stream.
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Statistical description of sediment transport experiments
TL;DR: The motion of coarse spherical glass beads entrained by a steady shallow turbulent water flow down a steep two-dimensional channel with a mobile bed is investigated, revisited Einstein's theory on sediment and the statistical properties of the key variables such as the solid discharge and the number of moving particles are derived.
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Two-dimensional motion of a set of particles in a free surface flow with image processing
Tobias Böhm,Philippe Frey,Christophe Ducottet,Christophe Ancey,Magali Jodeau,Jean-Luc Reboud +5 more
TL;DR: In this paper, the motion of coarse spherical particles on a mobile bed entrained by a shallow turbulent flow down a steep channel was filmed with a high-speed camera, and the water free surface and the particle positions were detected combining classical image processing algorithms.
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Fluctuations of the solid discharge of gravity-driven particle flows in a turbulent stream.
TL;DR: Solid-discharge fluctuations were exacerbated when the bed was mobile because (i) the moving solid phase and the stationary bed exchanged particles and (ii) collective entrainment of particles occurred.
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Image processing for the study of bedload transport of two-size spherical particles in a supercritical flow
Virginie Hergault,Philippe Frey,François Métivier,Cécile Barat,Christophe Ducottet,Tobias Böhm,Christophe Ancey +6 more
TL;DR: In this article, a two-size coarse spherical particle mixtures in a turbulent supercritical flow was analyzed with image and particle tracking velocimetry algorithms in a 2D flume.