M
Mark W. Schmeeckle
Researcher at Arizona State University
Publications - 53
Citations - 2384
Mark W. Schmeeckle is an academic researcher from Arizona State University. The author has contributed to research in topics: Bed load & Sediment transport. The author has an hindex of 25, co-authored 52 publications receiving 2072 citations. Previous affiliations of Mark W. Schmeeckle include United States Geological Survey & Columbus State Community College.
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Direct numerical simulation of bedload transport using a local, dynamic boundary condition
TL;DR: In this article, a model of bedload transport is presented that directly integrates the equations of motion of each particle of a simulated mixed grain-size sediment bed, and an empirical relation for the velocity modification resulting from upstream grains is provided to the bedload model.
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Forces on stationary particles in near-bed turbulent flows
TL;DR: In this paper, the downstream and vertical components of force on near-bed fixed particles and of fluid velocity above or in front of them were measured synchronously at turbulence-resolving frequencies (200 or 500 Hz) in a laboratory flume.
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Numerical simulation of turbulence and sediment transport of medium sand
TL;DR: In this paper, a model of sand transport in water is produced by combining a turbulence-resolving large eddy simulation (LES) with a discrete element model (DEM) prescribing the motion of individual grains of medium sand.
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A probabilistic description of the bed load sediment flux: 1. Theory
TL;DR: In this article, the authors provide a probabilistic definition of the bed load sediment flux, which is consistent with experimental measurements and simulations of particle motions reported in companion papers, and the formulation is based on the Fokker-Planck equation (an advection-diffusion form of the Master equation).
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A probabilistic description of the bed load sediment flux: 2. Particle activity and motions
TL;DR: In this paper, high-speed imaging of coarse sand particles transported as bed load over a planar bed reveals that the particle activity, the solid volume of particles in motion per unit streambed area, fluctuates as particles respond to near-bed fluid turbulence while simultaneously interacting with the bed.