TY - JOUR
ID - 13755
TI - Critical Submergence Estimation For Horizontal Intakes Derived From Reservoir Using Intelligent and Statistical Methods
JO - Irrigation Sciences and Engineering
JA - JISE
LA - en
SN - 2588-5952
AU - Sheikhi, Yaser
AU - Lashkar-Ara, Babak
AU - Fathi-moghadam, Manoochehr
AU - Valipour, Mahsa
AD - Msc student, Civil Engineering Department, Jundi-Shapur University of Technology, Dezful, Iran
AD - Assistant Professor, Civil Engineering Department, Jundi-Shapur University of Technology, Dezful, Iran.
AD - Professor, Department of Water and Science Engineering, Shahid Chamran University of Ahvaz, Iran.
Y1 - 2018
PY - 2018
VL - 41
IS - 3
SP - 171
EP - 184
KW - Critical Submergence
KW - Nonlinear Regression
KW - Genetic Programming
KW - Neural Network
DO - 10.22055/jise.2017.21526.1547
N2 - Horizontal intakes are one of the most important parts of hydraulic sets such as rivers for irrigation or reservoirs for power generation and industrial purposes. Air entrainment, by means of a free air-core vortex occurring at intake pipes, is an important problem encountered in hydraulic engineering. To develop and build the predictive models to estimate the critical submergence for a horizontal intake and evaluate the performance of these models, laboratory or field data are required. Gurbuzdal (2009) and Yildirim et al (2000) carried out an experimental study on critial submergence for horizontal intakes at a hydraulic laboratory. Yildirim et al ( 2000) experiments were performed at rectangular flume with 10m length and 0.5m width. Gurbuzdal (2009) was performed his experiments in a rectangular flume with 2.2m length and 0.63m width. In this study, equations for estimating critical submergence are developed using experimental data. At first, the equation of present study was determined using dimensional analysis, nonlinear regression and SPSS software. In the next step, the artificial neural network and the genetic programming models were used to investigate the accuracy of the results. At first, a functional predictors for critical submergence using nonlinear regression was proposed. The proposed model includes the effect of relative width, horizontal distance of center point of intake to impervious dead, vertical distance of intake to bottom of canal, velocity and Froude number. Then the results of the proposed model were evaluated and compared with the previous studies. As well, with development of the hydroinformatics the Artificial Neural Network model and the genetic programming model are used. The results of these models are statically compared according to the root mean square error (RMSE), mean percentage error (MPE), standard error of the estimate (SEE), modeling efficiency (EF), correlation coefficient (R2) and The gradient of regression line between results and observations, m, is calculated for evaluating the performance of the model in a way that the intercept of the equation is zero. The results of previous research are used on this equation validation. The predicted results are close to the observations.
UR - https://jise.scu.ac.ir/article_13755.html
L1 - https://jise.scu.ac.ir/article_13755_d16446d8afd9808deb51928055c2de36.pdf
ER -