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dc.contributor.authorDevi, K.
dc.contributor.authorMishra, S.
dc.contributor.authorHanmaiahgari, P.R.
dc.contributor.authorPu, Jaan H.
dc.date.accessioned2023-02-13T23:58:08Z
dc.date.accessioned2023-03-06T12:53:47Z
dc.date.available2023-02-13T23:58:08Z
dc.date.available2023-03-06T12:53:47Z
dc.date.issued2023
dc.identifier.citationDevi K, Mishra S, Hanmaiahgari PR et al (2023) Wake flow field of a wall-mounted pipe with spoiler on a rough channel bed. Acta Geophysica. Accepted for Publication.en_US
dc.identifier.urihttp://hdl.handle.net/10454/19335
dc.descriptionYesen_US
dc.description.abstractThis research work focuses on the wake flow region of a cylinder with a spoiler on a rough bed under steady flow conditions. The acoustic Doppler velocimetry was used for the measurement of three-dimensional velocity data for two Reynolds numbers in a fully developed turbulent flow around the cylinder with a spoiler. The mean flow velocities, second-order turbulence structures, and conditional statistics were investigated in the wake region of the spoilered cylinder. The flow was separated from the spoiler with the formation of two shear layers between free surface flow and recirculating flow. It is observed that the flow is reattaching to the bed at 11D irrespective of the Reynolds number. Downstream of the cylinder, the mean velocity distributions are asymmetric due to the wall–wake effect, and the point of inflection is observed for each velocity profile at z = 0.40ẟ. The turbulence intensities, Reynolds stresses, and TKE are highly enhanced in the wake region of the cylinder as compared to their respective upstream values for both runs. The turbulence intensities, Reynolds normal stresses, Reynolds shear stresses, and turbulent kinetic energy are attaining peaks at z = 0.4 ẟ for all the streamwise locations, and the peaks are found to be highest at x = 10D. The quadrant analysis results indicate that the sweeps are dominating bursting events in the inner and intermediate layers, while ejections are dominating in the outer layer of the wake region. As the hole size, H increases ejections stress fraction rises as compared to that of the sweeps in the wake region for z = 0.2–0.7 h.en_US
dc.language.isoenen_US
dc.rights© The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.en_US
dc.subjectADVen_US
dc.subjectBed-mounted horizontal cylinderen_US
dc.subjectSpoileren_US
dc.subjectTurbulenceen_US
dc.subjectWake regionen_US
dc.subjectQuadrant analysisen_US
dc.titleWake flow field of a wall-mounted pipe with spoiler on a rough channel beden_US
dc.status.refereedYesen_US
dc.date.Accepted2022-12-16
dc.date.application2023-01-18
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.identifier.doihttps://doi.org/10.1007/s11600-022-01008-x
dc.rights.licenseCC-BYen_US
dc.date.updated2023-02-13T23:58:10Z
refterms.dateFOA2023-03-06T12:54:28Z
dc.openaccess.statusopenAccessen_US


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