Estimation of Pressure Fluctuation Coefficient in Stilling Basins Using Computational Intelligent Models

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Mazandarani, Mahan | 2023

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 56679 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Shamsai, Abolfazl
Abstract:
Hydraulic jump is a significant hydraulic phenomenon that occurs in stilling basins and causes energy dissipation of water flow. Due to the severe pressure fluctuations, cavitation, and fatigue damage to concrete materials, hydraulic jump can cause damage to the stilling basin and its related components. Therefore, studying pressure fluctuations is one of the essential topics in the safe design and operation of stilling basins. Due to the nonlinear relationship between the effective variables in the pressure fluctuation phenomenon, the use of computational intelligent models that can extract the relationship between the effective variables is necessary. In this study, laboratory data obtained from the hydraulic model executed to investigate free and forced hydraulic jumps in the downstream stilling basin of the weir were used to model and calculate the dimensionless pressure fluctuation coefficient (Cp). The Froude number (Fr) range for free hydraulic jump was 6.20
Keywords:
Pressure Fluctuation ; Computational Independent Model (CIM) ; Regression Tree ; Group Method of Data Handliny (GMDH)Neural Network ; Gene Expression Programming ; Hydraulic Jump ; Free and Forced Hydraulic Jump ; Sitilling Basin

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