On the development of dunes in erodible channels

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Published
1974-06-03
Rights Information
  • https://www.cambridge.org/core/terms
DOI
  • 10.1017/s0022112074001960
Publisher
Cambridge University Press (CUP)

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<jats:p>A two-dimensional stability analysis of the flow in a straight alluvial channel has been carried out, using the vorticity transport equation. In the analysis an attempt has been made to account for the influence of gravity on bed-load transport, and this turned out to change the stability quite significantly.</jats:p><jats:p>In the case of instability, the further growth of the dunes has been investigated using a second-order approximation, This nonlinear theory explains the experimental fact that the dunes very soon become asymmetric.</jats:p>

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