On the development of dunes in erodible channels
J Fredsøe - Journal of Fluid Mechanics, 1974 - cambridge.org
Journal of Fluid Mechanics, 1974•cambridge.org
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. 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.
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. 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.
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.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.
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