Movie:A simulation of river bedforms

Information Page: A simulation of river bedforms

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Bedform migration in a river

Key Attributes

Domain:	terrestrial, hydrology
Model name:	Animation model name
Name:	Mohammed, Nabi
Where:	at the bottom of a river
When:	months

Short Description

Grade level: Under graduate (13-16), Graduate / Professional

Statement: Bedforms moving at the bottom of a river

Abstract: Simulation of river bedform by large eddy simulation (LES), and sediment as spherical particles.

Related papers are: doi: 10.1002/wrcr.20457 doi: 10.1002/wrcr.20303 doi: 10.1029/2012WR011911

Theory

The flow of water in rivers over loose sediments can lead to self organizing patterns, such as the ripples presented in this simulation.

Generally, as the strength of the flow of water increases, low-flow bed forms evolve from a flat surface, to ripples, and then dunes. As higher flows occur, anti-dunes and eventually pools and chutes form.

For more information see the related papers:

doi: 10.1002/wrcr.20457 doi: 10.1002/wrcr.20303 doi: 10.1029/2012WR011911

Links

http://ws3-er.eng.hokudai.ac.jp/dpr/dpr eng/?page id=455

References

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