Use of the Discrete Vortex Method to Calculate Wind Loads over a Surface-Mounted Prism and a Bridge Cross-Section with Flaps

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dc.contributor.authorMaines, Nathan Louisen
dc.contributor.committeechairHajj, Muhammad R.en
dc.contributor.committeememberMook, Dean T.en
dc.contributor.committeememberHendricks, Scott L.en
dc.contributor.departmentEngineering Science and Mechanicsen
dc.date.accessioned2014-03-14T20:37:29Zen
dc.date.adate2005-06-15en
dc.date.available2014-03-14T20:37:29Zen
dc.date.issued2005-05-11en
dc.date.rdate2012-10-10en
dc.date.sdate2005-05-18en
dc.description.abstractThis thesis aims at presenting the Discrete Vortex Method (DVM) as a tool to determine the flow field and associated wind loads over structures. Two structures are considered: the first is a surface-mounted prism and is used to simulate wind loads over low-rise structures. The second is a bridge section with attached flaps that can be oriented to vary the moment coefficient. Advantages and disadvantages of using DVM for these applications are discussed. For the surface-mounted prism, the results show that the developed code correctly predicts the flow separation around the corners. As for the surface pressures, it is concluded that parallel processing, which could be easily implemented for DVM, should be used to correctly predict surface pressures and their variations. This is due to the required slow time advancement of the computations. The results on attaching flaps to bridge sections yield required orientations to minimize moments under different angles of attack.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05182005-141413en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05182005-141413/en
dc.identifier.urihttp://hdl.handle.net/10919/32952en
dc.publisherVirginia Techen
dc.relation.haspartETD.pdfen
dc.relation.haspartETDIntro.pdfen
dc.relation.haspartETDcover.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectaerodynamic force controlen
dc.subjectDiscrete Vortex Methoden
dc.subjectsurface-mounted prismen
dc.titleUse of the Discrete Vortex Method to Calculate Wind Loads over a Surface-Mounted Prism and a Bridge Cross-Section with Flapsen
dc.typeThesisen
thesis.degree.disciplineEngineering Science and Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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