A Velocity Meter for Quantifying Advection Velocity Vectors in Large Water Bodies

dc.contributor.authorAllafchi, Farzam
dc.contributor.authorValeo, Caterina
dc.contributor.authorChu, Angus
dc.contributor.authorHe, Jianxun
dc.contributor.authorLee, Waltfred
dc.contributor.authorOshkai, Peter
dc.contributor.authorNeumann, Norman
dc.date.accessioned2021-02-01T22:45:33Z
dc.date.available2021-02-01T22:45:33Z
dc.date.copyright2020en_US
dc.date.issued2020
dc.description.abstractA velocity meter was designed and built in order to meet market needs for an affordable instrument that measures the range of velocity magnitudes and direction experienced in medium- to large-sized water bodies. The velocity meter consists of a graduated plate with an injector protruding from the center and a camera held downward above the plate. Once the Dye Injection Velocity (DIV) meter is in the flow, dye is injected and the camera records the dye fluid transport. The recorded video is analyzed to determine the local flow velocity and direction. The DIV was calibrated for a range of velocities between 0.0094 m/s and 0.1566 m/s using particle image velocimetry (PIV) in a flow visualization flume. The accuracy of the instrument was found to be +6.3% and −9.8% of full scale. The coefficient of determination of the calibration curve was equal to 98%. Once calibrated, the DIV was deployed to the Inverness Stormwater pond in Calgary, Canada, for validation tests against an Acoustic Doppler Velocity (ADV) meter. During the validation tests, both flow velocity magnitude and direction were measured at several spatial points. The velocity magnitude results showed good agreement and the Mann-Whitney test showed no statistically significant difference (p-value > 0.05). At two spatial points, the differences between direction data were significant, which could be caused by the random errors involved in the validation test. However, the averaged data showed good agreement.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThis work was funded by Alberta Innovates, grant number RES#0030866.en_US
dc.identifier.citationAllafchi, F., Valeo, C., Chu, A., He, J., Lee, W., Oshkai, P., & Neumann, N. (2020). A Velocity Meter for Quantifying Advection Velocity Vectors in Large Water Bodies. Sensors, 20(24), 1-12. https://doi.org/10.3390/s20247204.en_US
dc.identifier.urihttps://doi.org/10.3390/s20247204
dc.identifier.urihttp://hdl.handle.net/1828/12643
dc.language.isoenen_US
dc.publisherSensorsen_US
dc.subjectvelocity meteren_US
dc.subjectstormwater ponden_US
dc.subjectPIVen_US
dc.subjectADVen_US
dc.subjectflow velocityen_US
dc.subjectdye injectionen_US
dc.titleA Velocity Meter for Quantifying Advection Velocity Vectors in Large Water Bodiesen_US
dc.typeArticleen_US

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