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Application of large-scale particle image velocimetry at the Hydraulics Laboratory of Colorado State University

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dc.contributor.authorChen, Kaiwei, author
dc.contributor.authorEttema, Robert, advisor
dc.contributor.authorThornton, Christopher, committee member
dc.contributor.authorNelson, Peter, committee member
dc.contributor.authorLanders, Stuart, committee member
dc.date.accessioned2018-06-12T16:13:43Z
dc.date.available2018-06-12T16:13:43Z
dc.date.issued2018
dc.description.abstractLarge-scale particle image velocimetry (LSPIV) is a nonintrusive technique used to measure free-surface velocities of water flow in a manner that produces a two-dimensional vector field of flow velocity. LSPIV is gradually becoming quite widely used as a technique for measuring flow velocities in a range of flow areas. This study used readily available material and devices, and software, to apply LSPIV to flow fields in two laboratory flumes at the Hydraulics Laboratory of Colorado State University; LSPIV had not been used in this laboratory before this study. The applications used pieces of paper as tracer floats in the flow field, and employed a standard iPhone 6s to record video of the tracers moving in the flow field. The video record of tracer movements was then analyzed using Fudaa LSPIV software and Tecplot 360 software to calculate and present the flow velocity data. The applications demonstrated the utility of the LSPIV technique for determining the free-surface flow patterns, and their variations, in experiments done at the Hydraulics Laboratory. Additionally, this study examined the relationship between the tracer size and LSPIV accuracy with the objective of identifying an optimal width of tracer relative to the width of the flow field and its features. Five sizes of tracer were used in measuring the water-surface flow field through a series of contractions and expansions. It was found that the best tracer size is about from 3.80% to 6.33% of the wide of the channel.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierChen_colostate_0053N_14634.pdf
dc.identifier.urihttps://hdl.handle.net/10217/189265
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectbendway weir
dc.subjecttracer size
dc.subjectLSPIV
dc.subjectaccuracy
dc.titleApplication of large-scale particle image velocimetry at the Hydraulics Laboratory of Colorado State University
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineCivil and Environmental Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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