Abstract
The backwater profile plays an important role in the design and performance of any hydraulic structures. Various methods are already in practice for the estimation of backwater profile. Present study attempts to estimate the backwater profiles due to barrage gate operations considering variable pond levels for alluvial channels using both theoretical analysis and laboratory model tests. The physical model tests were conducted for different pond levels and discharges. Backwater profiles obtained from theoretical and physical model tests data were compared with those obtained from available methods. Finally, a non-dimensional relationship has been established between the pond level and the backwater length.
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