Evolutionary algorithms for the determination of critical depths in conduits

A. Kanani, M. Bakhtiari, S.M. Borghei, D.-S. Jeng

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)


    The determination of critical depth and the position of control sections is important in open-channel hydraulics. Calculation of critical depth in open channels is useful not only for determining the condition of a flow but also for hydraulic design and analysis of experimental and analytical results. In this study, unlike the conventional approaches, an alternative method, based on a genetic algorithm (GA), for the calculation of critical depth in conduits is presented. In our model, the governing equations are transferred into an objective function that is then minimized using a GA in order to calculate critical depth. This method does not have the limitations of existing empirical and semiempirical methods and can be used for any prismatic or nonprismatic open-channel cross section. The concepts presented in this paper can be generalized for solving other tortuous hydraulic engineering equations and problems.
    Original languageEnglish
    Pages (from-to)847-852
    Number of pages6
    JournalJournal of Irrigation and Drainage Engineering
    Issue number6
    Publication statusPublished - 2008


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