Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD)

Mattos-Villarroel, Erick Dante; Flores, Jorge; Ojeda-Bustamante, Waldo; Íñiguez-Covarrubias, Mauro; Díaz-Delgado, Carlos; Salinas-Tapia, Humberto; Irrigación, Morelos Colegio Mexicano de Ingenieros en

doi:10.24850/j-tyca-2021-04-03

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…El autor determinó que los tetraedros deben tener dimensiones entre 0,05 y 0,01 m, estos límites se establecieron con el fin de encontrar un equilibrio entre la calidad de la modelación y el tiempo del cálculo [11].…”

Section: Revisión De Literatura O Antecedentes De Investigaciónunclassified

OpenFOAM reduced channel modeling análisis

Lara Pérez,

Nova Burgos,

Montenegro Carrillo

et al. 2023

ing. Solidar

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Introduction: The article is a product of the research “Analysis of open channel models with reduction in Openfoam” developed at Universidad Santo Tomás in 2022 integrating computational fluid dynamics (cfd), in an open channel with reduction of multiphase, isotropic, isothermal, turbulent and steady state flow. Problem: Drinking water supply requires efficient treatment, and to achieve this, the hydrodynamic and physicochemical processes of the treatment plant units must be known in detail. Simulation is used to reduce costs and to perform multiple experiments. A robust hydraulic parameter readout system increases the reliability of modeling [1]. The larger source of experimental data leads to a more reliable model. Objective: Familiarize the reader with the tools for learning and optimization of conventional treatment systems for human water supply. Research also contributes to ensuring environmental sustainability and reducing the proportion of people without sustainable access to water and sanitation services, especially in rural areas where lack of water infrastructure is a prevalent problem. Method: Simulation of complex turbulence models by means of energy, mass and momentum conservation equations by means of Openfoam solvers. Results: There is a convergence since time 5952, since after this time most of the residual limit values are in the order of 10-3 and 10-4, and taking into account the state of the art which states that the solution has converged if the residual is in the order of these values Conclusions: A contribution has been made to the knowledge of computational fluid dynamics, generating an approach to the modeling of channels to the students of the civil engineering faculty of the Santo Tomas University, for advances in future research, thus strengthening in an institutional way the use of Openfoam for the modeling of complex problems in water transport systems.

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Section: Revisión De Literatura O Antecedentes De Investigaciónunclassified

OpenFOAM reduced channel modeling análisis

Lara Pérez,

Nova Burgos,

Montenegro Carrillo

et al. 2023

ing. Solidar

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Methodological Proposal for the Hydraulic Design of Labyrinth Weirs

Mattos-Villarroel

Ojeda-Bustamante

Díaz-Delgado³

et al. 2023

Water

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A labyrinth weir allows for higher discharge capacity than conventional linear weirs, especially at low hydraulic heads. In fact, this is an alternative for the design or rehabilitation of spillways. It can even be used as a strategy in problems related to dam safety. A sequential design method for a labyrinth weir is based on optimal geometric parameters and the results of discharge flow analysis using Computational Fluid Dynamics and the experimental studies reported in the literature. The tests performed were for weirs with values of HT/P ≤ 0.8 and for angles of the cycle sidewall of 6° ≤ α ≤ 20°. The results of the discharge coefficient are presented as a family of curves, which indicates a higher discharge capacity when HT/P ≤ 0.17. Four aeration conditions are identified with higher discharge capacity when the nappe is adhering to the downstream face of the weir wall and lower discharge capacity when the nappe is drowned. Unstable flow was present when 12° ≤ α ≤ 20°, with a greater presence when the nappe was partially aerated and drowned. The interference of the nappe is characterized and quantified, reaching up to 60% of the length between the apex, and a family of curves is presented as a function of HT/P in this respect. Finally, a spreadsheet and a flowchart are proposed to support the design of the labyrinth type weir.

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Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD)

Abstract: Hydraulic analysis of a compound weir (triangularrectangular) simulated with computational fluid dynamics (CFD) Análisis hidráulico de un vertedor compuesto (triangular-rectangular) mediante dinámica de fluidos computacional (CFD)

Cited by 2 publications

References 19 publications

OpenFOAM reduced channel modeling análisis

OpenFOAM reduced channel modeling análisis

Methodological Proposal for the Hydraulic Design of Labyrinth Weirs

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