Geodesic
A Cusp-Like Free-Surface Flow Caused by a Source/Sink in a Channel of Finite Depth
Bulletin of the Malaysian Mathematical Society, Tome 22 (1999) no. 1 
Leo Hari Wiryanto. A Cusp-Like Free-Surface Flow Caused
                        by a Source/Sink in a Channel of Finite Depth. Bulletin of the Malaysian Mathematical Society, Tome 22 (1999) no. 1. http://geodesic.mathdoc.fr/item/BMMS_1999_22_1_a6/
@article{BMMS_1999_22_1_a6,
     author = {Leo Hari Wiryanto},
     title = {A {Cusp-Like} {Free-Surface} {Flow} {Caused
}                        by a {Source/Sink} in a {Channel} of {Finite} {Depth}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {1999},
     volume = {22},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_1999_22_1_a6/}
}
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                        by a Source/Sink in a Channel of Finite Depth
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Voir la notice de l'article provenant de la source BMMS

A flow caused by a line sink/source is considered in a channel of finite depth. The sink is placed at the bottom of the channel, and produces a free surface with a cusp pointing to the sink. Numerical solutions of this free-surface flow are computed by an integral equation method. The relationship between the nondimensional parameter Froude number F , based on the downstream flow, and the distance of the separation point of the cusp to the sink is presented as a plot from our computations. When we obtain the limiting cusp solution with .