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dc.contributor.authorPu, Jaan H.*
dc.contributor.authorWei, J.*
dc.contributor.authorHuang, Y.*
dc.date.accessioned2017-09-05T08:41:49Z
dc.date.available2017-09-05T08:41:49Z
dc.date.issued2017
dc.identifier.citationPu JH, Wei J and Huang Y (2017) Velocity distribution and 3D turbulence characteristic analysis for flow over water-worked rough bed. Water. 9(9): 668.en_US
dc.identifier.urihttp://hdl.handle.net/10454/13060
dc.descriptionYesen_US
dc.description.abstractTo reproduce the natural flow topography in a laboratory environment, it is crucial to recapture its bed condition in order to ensure the accurate representation. Water-worked bed represents a state-of-the-art experimentally formed bed to imitate the natural-formed channel in most rivers or natural streams. Recently, this technique has been intensively studied through experimental and computational approaches; however, its actual influence towards the near-bed flow as compared to experimentally prepared rough bed in well-packed bedform order are still yet to be investigated deeply. This experimental study systematically investigated and compared the differences in velocity distribution and three-dimensional (3D) turbulence characteristics, including turbulence intensities and Reynolds stresses, between uniform smooth bed, laboratory-prepared rough bed and water-worked bed open channel flows. The flow comparisons were concentrated at near-bed region where clear flow behaviour change can be observed. Through these comparisons, the study inspected the characteristics of water-worked bedform thoroughly, in order to inform future experimental research that tries to reproduce natural stream behaviours.en_US
dc.description.sponsorshipthe Major State Basic Research Development Grant No. 2013CB036402 from Tsinghua University. The support from the Major State Basic Research Development Program (973 program) of China is also greatly appreciated. We also acknowledge the National Key Research and Development Project from the Ministry of Science and Technology during the Thirteenth Five-year Plan Period (Grant No. 2017YFC0403600) and the Science and Technology Projects State Grid Corporation of China (Grant No. 52283014000T).en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.3390/w9090668
dc.rights© 2017 by the authors. Submitted for possible open access publication under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.subjectSmooth bed; Rough bed; Water-worked bed; Near-bed flow; Uniform flow; Velocity distribution; Turbulence intensity; Reynolds stress; 3D turbulence characteristicsen_US
dc.titleVelocity distribution and 3D turbulence characteristic analysis for flow over water-worked rough beden_US
dc.status.refereedYesen_US
dc.date.Accepted2017-09-01
dc.date.application2017-09-08
dc.typeArticleen_US
dc.type.versionPublished versionen_US
refterms.dateFOA2018-07-26T09:00:32Z


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