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Optimal lined channel design
Date
2006-05-01
Author
Aksoy, Bülent
Altan Sakarya, Ayşe Burcu
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The optimum values of the section variables (side slope, bottom width, flow depth, and radius) for triangular, rectangular, trapezoidal, and circular channels are computed by minimizing the cost of the channel section. Manning's uniform flow formula is treated as the constraint of the optimization model. The cost function is arranged to include the cost of lining, the cost of earthwork, and the increment in the cost of earthwork with depth below the ground surface. The optimum values of section variables are expressed as explicit functions of unit cost terms. Unique values of optimum section variables are obtained for the case of minimum area or minimum wetted perimeter problems. Key words: open channel design, optimization, minimum cost, best hydraulic section.
Subject Keywords
Civil and Structural Engineering
,
General Environmental Science
URI
https://hdl.handle.net/11511/43813
Journal
Canadian Journal of Civil Engineering
DOI
https://doi.org/10.1139/l06-008
Collections
Department of Civil Engineering, Article