Interaction Of Flow With Mobile Bottom In The River Mouth
Author(s)
R. Khanbilvardi, B. Shteinman, V. Khazin & 0. 0zkurt
Abstract
Interaction of flow with mobile bottom in the
river mouth
R. ~hanbilvardi', B. shteinmanl, V. ~hazin' & 0. 0zkurt2
'~nternational Center for Water Resources and Environmental Research
and Department of Civil Engineering, City College of C W USA
"he Graduate Center and University Center of CUNY, USA
Abstract
In the contact zone "river-sea (lake)" we observe inertial jet flow. Such flows are
characterized by the lack of influence on their motion of the banks and bottom,
and also of gravity - due to flattening of the river jet up to a zero slope. Because
of these circumstances, the structure of river turbulence is rapidly collapsing, and
the length of turbulent eddies is diminishing. Our observations have shown that
this diminishing of the eddies is accompanied by downsizing of bottom sand
ripples, decreasing their motion rate, and, as a result, bed load along the jet flow
is reducing and a river bar is forming. These processes come to an end at an
average distance from the exit cross-section equa
Keywords
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