Analysis of Time-Varying Characteristics of Simulated Turbulence in Wind Tunnel

dc.contributor.authorTian, Linen
dc.contributor.committeechairHajj, Muhammad R.en
dc.contributor.committeememberTieleman, Henry W.en
dc.contributor.committeememberRagab, Saad A.en
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2014-03-14T20:40:27Zen
dc.date.adate1999-07-09en
dc.date.available2014-03-14T20:40:27Zen
dc.date.issued1999-05-28en
dc.date.rdate2000-07-09en
dc.date.sdate1999-06-23en
dc.description.abstractEight roughness configurations in Clemson boundary layer wind tunnel are presented. For these configurations, flow parameters such as turbulent intensities, integral length scales, large- and small- scale turbulence, and spectra of velocity components of the wind are obtained and studied to the simulated turbulence. At the same time, new analyzing tools, orthogonal wavelet techniques, are applied to provide additional information in time domain. This makes it possible to study the intermittency event, one important characteristic associated with pressure peak activities in turbulence. Three parameters, scale energy, intermittency factor and intermittency energy are defined. Variation of these quantities as a result of different configuration is discussed. Finally, the corresponding variations in measured pressure peaks in relation with the variations of configuration as well as with the intermittency parameters are investigated. The work here is of important significance for future wind tunnel and field data comparison, and this could help to find the best simulation among all configurations.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-062399-131503en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-062399-131503/en
dc.identifier.urihttp://hdl.handle.net/10919/33717en
dc.publisherVirginia Techen
dc.relation.haspartCHAPTER6.pdfen
dc.relation.haspartCHAPTER5.pdfen
dc.relation.haspartCHAPTER3.pdfen
dc.relation.haspartVITA.pdfen
dc.relation.haspartContent.pdfen
dc.relation.haspartCHAPTER1.pdfen
dc.relation.haspartCHAPTER2.pdfen
dc.relation.haspartTITLE.pdfen
dc.relation.haspartCHAPTER4.pdfen
dc.relation.haspartack.pdfen
dc.relation.haspartabs.pdfen
dc.relation.haspartREF.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectsmall-scale turbulenceen
dc.subjectatmospheric turbulenceen
dc.subjectwind loadsen
dc.subjectorthonormal waveletsen
dc.subjectintermittencyen
dc.titleAnalysis of Time-Varying Characteristics of Simulated Turbulence in Wind Tunnelen
dc.typeThesisen
thesis.degree.disciplineEngineering Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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