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oai:www.ideals.illinois.edu:2142/101578 2023-07-11 col_2142_5131 col_2142_14770 com_2142_5130 com_2142_3518 com_2142_234

Tinoco Lopez, Rafael Omar Ranjan, Pallav 2018-09-27T16:17:51Z 2018-09-27T16:17:51Z 2018-07-20 2018-08 High resolution Large Eddy Simulations of flow through staggered rigid emergent vegetation patch were performed using a spectral-element based solver, Nek5000. The staggered pattern of vegetation was similar to experiments conducted on the Odell-Kovasznay racetrack flume where a 5 cm gap was created within the vegetation patch to measure flow velocity using a 3D PIV setup. The main objective of this study was to investigate if flow conditions in the gap are representative of that within the array of vegetation. Flow characteristics such as time averaged velocity, turbulent kinetic energy, bed shear stress and turbulence intensity were investigated for increasing Reynolds number of the flow, and it was found that experimental measurements within the gap would be non-representative of flow conditions within the array. Further, a suspended sediment transport model was developed in Nek5000 and was used to simulate suspended sediment transport within a patch of emergent rigid vegetation. The results were found to be in good agreement with the theory, making it probably one of the first successful attempts at high resolution LES of suspended sediment transport through vegetation canopy. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2018-09-27 without embargo terms The student, Pallav Ranjan, accepted the attached license on 2018-07-20 at 11:02. The student, Pallav Ranjan, submitted this Thesis for approval on 2018-07-20 at 11:30. This Thesis was approved for publication on 2018-07-20 at 13:26. DSpace SAF Submission Ingestion Package generated from Vireo submission #12860 on 2018-09-27 at 10:48:14 Made available in DSpace on 2018-09-27T16:17:51Z (GMT). No. of bitstreams: 3 RANJAN-THESIS-2018.pdf: 20469332 bytes, checksum: 6d6fc8a3b52b3fc77bc90f1713cbe34a (MD5) high-resolution-numerical.tar.gz: 37708230 bytes, checksum: 352f0662c1bf532573286d7bcfdc2082 (MD5) LICENSE.txt: 4210 bytes, checksum: 18bd415bdc90807fe97ab0a02fe60dd6 (MD5) Previous issue date: 2018-07-20 application/pdf http://hdl.handle.net/2142/101578 en Copyright 2018 Pallav Ranjan Suspended Sediment Transport Vegetation High-Resolution Large Eddy Simulation Nek5000 High-resolution numerical investigation of hydrodynamics and sediment transport within emergent vegetation canopy text text Civil & Environmental Eng Civil Engineering University of Illinois at Urbana-Champaign Thesis M.S.