Geodesic
A Subcritical Flow Over a Stepping Bottom
Bulletin of the Malaysian Mathematical Society, Tome 28 (2005) no. 1 
L.H. Wiryanto. A Subcritical Flow Over a Stepping Bottom. Bulletin of the Malaysian Mathematical Society, Tome 28 (2005) no. 1. http://geodesic.mathdoc.fr/item/BMMS_2005_28_1_a11/
@article{BMMS_2005_28_1_a11,
     author = {L.H. Wiryanto},
     title = {A {Subcritical} {Flow} {Over} a {Stepping} {Bottom}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2005},
     volume = {28},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2005_28_1_a11/}
}
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Voir la notice de l'article provenant de la source BMMS

A free-surface flow on a channel with step bottom is solved numerically by an integral equation method. The flow is assumed to be steady, 2 dimensional and irrotational, meanwhile the fluid is inviscid and incompressible, and the effect of gravity is not negligible. The numerical result show that solutions with a train of waves are obtained for subcritical flow, and for various height of the step. The waves are characterized as long wave with ratio amplitude to wave-length of order 10 -2 or smaller.