Evolutionary algorithms for the determination of critical depths in conduits

TY - JOUR

T1 - Evolutionary algorithms for the determination of critical depths in conduits

AU - Kanani, A.

AU - Bakhtiari, M.

AU - Borghei, S.M.

AU - Jeng, D.-S.

N1 - Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/56449093466

U2 - 10.1061/(ASCE)0733-9437(2008)134:6(847)

DO - 10.1061/(ASCE)0733-9437(2008)134:6(847)

M3 - Article

AN - SCOPUS:56449093466

SN - 0733-9437

VL - 134

SP - 847

EP - 852

JO - Journal of Irrigation and Drainage Engineering

JF - Journal of Irrigation and Drainage Engineering

IS - 6

ER -