When do logs move in rivers?

@article{Braudrick2000WhenDL,
  title={When do logs move in rivers?},
  author={Christian A. Braudrick and Gordon E Grant},
  journal={Water Resources Research},
  year={2000},
  volume={36},
  pages={571 - 583}
}
Large woody debris is an integral component of forested, fluvial systems throughout the world, yet we know little about hydraulic thresholds for movement and transport of logs. We developed theoretical models of entrainment and performed flume experiments to examine thresholds for wood movement in streams. Both the model and the experiments indicate that log entrainment is primarily a function of the piece angle relative to flow direction, whether or not the log had a rootwad, the density of… 
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283 Citations

Transport and deposition of large woody debris in streams: a flume experiment

Flume experiments on entrainment of large wood in low-land rivers

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Wood is a key feature of riverine systems, playing a significant role in their morphodynamics and ecology. Wood dynamics have been widely investigated in single‐thread streams, but limited…

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Experimental study on entrainment of large wood in lowland rivers

Wood transport in rivers, typically occurring during flood events, represents a relevant hazard for its potential to create obstruction at bridges and narrow cross-sections. Therefore, the…

Field measurements of drag coefficients for model large woody debris

Modeling wood dynamics, jam formation, and sediment storage in a gravel‐bed stream

[1] In small and intermediate sized streams, the interaction between wood and bed material transport often determines the nature of the physical habitat, which in turn influences the health of the…

The influence of large wood and rootwad on flow patterns and bed morphology in a moving bed channel

Studying large wood in river channels can help gain insight on their form and processes. Over the preceding decade, laboratory and field experiments have been used to explain wood dynamics, flow…

Modeling entrainment of waterlogged large wood in stream channels

Research has led to an understanding of how floatable wood provides physical complexity and habitat in streams, but little is known about large wood that does not float because it is waterlogged,…

Large wood transport and jam formation in a series of flume experiments

Large wood has historically been removed from streams, resulting in the depletion of in‐stream wood in waterways worldwide. As wood increases morphological and hydraulic complexity, the addition of…
...

References

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