Subcritical Flow Computation in an Open-Channel Network with Dividing Junctions and Sluice Gates

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dc.contributor.advisorWang, Keh-Han
dc.contributor.committeeMemberVipulanandan, Cumaraswamy
dc.contributor.committeeMemberMo, Yi-Lung
dc.contributor.committeeMemberEl Nahas, Medhat
dc.contributor.committeeMemberQian, Qin
dc.creatorBashar, Mohammed Fathi Mohammed
dc.date.accessioned2018-03-13T13:16:08Z
dc.date.available2018-03-13T13:16:08Z
dc.date.createdDecember 2017
dc.date.issued2017-12
dc.date.submittedDecember 2017
dc.date.updated2018-03-13T13:16:09Z
dc.description.abstractThis study focuses on the development of an integrated analytical-numerical solver to model subcritical open channel flows in a channel network, which includes dividing channel junctions, flow through a sluice gate, and gradually varied flow transition between gate and gate, or gate and junction. The fundamental equations describing flows in a channel junction and a sluice gate of a trapezoidal cross section are derived. The flow rates and corresponding water depths in each branch channel for various cases of given discharges in the upstream main channel and the geometric features of the main channel and the branch channels are computed. The correlation of water depths between upstream and downstream of a control gate for water flows through it is also investigated. The gate opening for a needed flow rate can be determined. The predicted water depths and flow rates for a channel junction with a 90 branch channel are compared to the published analytical and experimental results. Good agreements have been achieved, where the averaged relative percentage error at main channel extension and branch channel are 7.57 % and 4.23 %, respectively. Additionally, the predicted water depths at downstream of the main trapezoidal channel in general are less than those with the cases of a rectangular channel junction. However, the water depths at a branch channel are greater than those in a dividing channel junction of rectangular section. In contrast, flow rates at the downstream main trapezoidal channel and branch channel are respectively greater and less than the values obtained in a channel junction of rectangular section.
dc.description.departmentCivil and Environmental Engineering, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10657/2962
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectSubcritical flow
dc.subjectOpen channel network
dc.subjectDiving junctions
dc.subjectSluice gates
dc.titleSubcritical Flow Computation in an Open-Channel Network with Dividing Junctions and Sluice Gates
dc.type.dcmiText
dc.type.genreThesis
local.embargo.lift2019-12-01
local.embargo.terms2019-12-01
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentCivil and Environmental Engineering, Department of
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy

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