Optimal lined channel design

Date

2006-05-01

Author

Aksoy, Bülent
Altan Sakarya, Ayşe Burcu

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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

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Citation Formats

B. Aksoy and A. B. Altan Sakarya, “Optimal lined channel design,” Canadian Journal of Civil Engineering, pp. 535–545, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43813.