Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach

Tyrolean weir has a hydraulic trash rack that is installed through the river stream for water-intake. In this paper, hydraulic flow of this structure is simulated three-dimensionally, and its perfor-mance is studied through a change of the amount of the opening between trash racks. The modeling and...

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Main Authors: Saeed Farzin, Hojjat Karami, Parham Sabetii, Shahab Nayyer
Format: Article
Language:fas
Published: University of Qom 2018-02-01
Series:پژوهش‌های زیرساخت‌های عمرانی
Subjects:
Online Access:https://cer.qom.ac.ir/article_871_7ddab7b0d9c0ec5f9ed664d2e659ebed.pdf
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author Saeed Farzin
Hojjat Karami
Parham Sabetii
Shahab Nayyer
author_facet Saeed Farzin
Hojjat Karami
Parham Sabetii
Shahab Nayyer
author_sort Saeed Farzin
collection DOAJ
description Tyrolean weir has a hydraulic trash rack that is installed through the river stream for water-intake. In this paper, hydraulic flow of this structure is simulated three-dimensionally, and its perfor-mance is studied through a change of the amount of the opening between trash racks. The modeling and analysis is done with AN-SYS CFX 16.0. The accuracy of numerical model and the results are confirmed by comparing the parameters such as discharge of the weir output and wetted trash rack length with models and re-sults of the prior researchers. To generalize the results, Tyrolean weir is investigated in cases of three different input discharge and three different inclinations of the trash rack from the horizon (0%, 10% and 20%). The results show that increasing the inflow in a given inclination of the weir surface, less part of the water-intake is as a slip of water over the network and pouring of that in the weir. For instance, 35% opening is required to water-intake of 50% of maximum input discharge of 12 lit/ (s.m).
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spelling doaj.art-299536dae9f349a0a2d06f8a4454964b2024-03-31T19:56:46ZfasUniversity of Qomپژوهش‌های زیرساخت‌های عمرانی2783-140X2018-02-0132152410.22091/cer.2017.1613.1066871Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approachSaeed Farzin0Hojjat Karami1Parham Sabetii2Shahab Nayyer3Assistant Professor, Department of Civil Engineering, Semnan University.Assistant Professor, Department of Civil Engineering, Semnan UniversityM.Sc. Student, Department of Civil Engineering, Semnan UniversityM.Sc. Student, Department of Civil Engineering, Semnan UniversityTyrolean weir has a hydraulic trash rack that is installed through the river stream for water-intake. In this paper, hydraulic flow of this structure is simulated three-dimensionally, and its perfor-mance is studied through a change of the amount of the opening between trash racks. The modeling and analysis is done with AN-SYS CFX 16.0. The accuracy of numerical model and the results are confirmed by comparing the parameters such as discharge of the weir output and wetted trash rack length with models and re-sults of the prior researchers. To generalize the results, Tyrolean weir is investigated in cases of three different input discharge and three different inclinations of the trash rack from the horizon (0%, 10% and 20%). The results show that increasing the inflow in a given inclination of the weir surface, less part of the water-intake is as a slip of water over the network and pouring of that in the weir. For instance, 35% opening is required to water-intake of 50% of maximum input discharge of 12 lit/ (s.m).https://cer.qom.ac.ir/article_871_7ddab7b0d9c0ec5f9ed664d2e659ebed.pdfbottom intakecomputational fluid dynamicsfinite volume methodtyrolean weir3d modeling
spellingShingle Saeed Farzin
Hojjat Karami
Parham Sabetii
Shahab Nayyer
Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
پژوهش‌های زیرساخت‌های عمرانی
bottom intake
computational fluid dynamics
finite volume method
tyrolean weir
3d modeling
title Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
title_full Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
title_fullStr Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
title_full_unstemmed Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
title_short Determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
title_sort determination of the outflow proportion of bottom intake with trash rack by controlling the amount of opening between racks with computational fluid dynamics approach
topic bottom intake
computational fluid dynamics
finite volume method
tyrolean weir
3d modeling
url https://cer.qom.ac.ir/article_871_7ddab7b0d9c0ec5f9ed664d2e659ebed.pdf
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AT parhamsabetii determinationoftheoutflowproportionofbottomintakewithtrashrackbycontrollingtheamountofopeningbetweenrackswithcomputationalfluiddynamicsapproach
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