Accurate Modeling of the Neutral and Unstable Atmospheric Boundary Layer at Horns Rev using the k-ε Method in FLUENT 6.3

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dc.contributor.advisorMetcalfe, Ralph W.
dc.contributor.committeeMemberKleis, Stanley J.
dc.contributor.committeeMemberRappenglueck, Bernhard
dc.creatorMartin, Natalie 1981-
dc.date.accessioned2016-02-15T01:25:19Z
dc.date.available2016-02-15T01:25:19Z
dc.date.createdDecember 2012
dc.date.issued2012-12
dc.date.updated2016-02-15T01:25:19Z
dc.description.abstractA k-ε code is customized in FLUENT 6.3 to simulate neutral and unstable atmospheric boundary layers (ABL) derived from Monin-Obukhov (MO) similarity theory. The code is tuned until velocity, temperature, turbulent kinetic energy (TKE), and turbulent dissipation rate (TDR) results maintain the initial theoretical values at upstream and downstream positions in a 2D and 3D domain. After verifying that the code is performing consistently, neutral and unstable initial profiles are constructed from averaged observations of the ABL at Horns Rev and are implemented into the k-ε code. The simulation results display that the Horns Rev velocity profiles are slightly under approximated in the neutral simulation and moderately over approximated in the unstable simulations. Moreover, the simulated TKE profile shows divergence from the initial MO TKE profile as the thermal stability becomes more unstable. A study of the developing 3D dynamics of a turbulent ABL illustrating structures such as vortices and streaks is not reported on, and the results display strictly steady parallel flow.
dc.description.departmentMechanical Engineering, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10657/1185
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectK-ε turbulence method
dc.subjectK-epsilon
dc.subjectFLUENT
dc.subjectHorns Rev
dc.subjectMonin-Obukhov similarity theory
dc.subjectMOST
dc.subjectAtmospheric boundary layer
dc.subjectABL
dc.subjectNeutral boundary layer
dc.subjectUnstable boundary layer
dc.subjectDiabatic
dc.subjectConvective
dc.subjectStability
dc.subjectWind profile
dc.titleAccurate Modeling of the Neutral and Unstable Atmospheric Boundary Layer at Horns Rev using the k-ε Method in FLUENT 6.3
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentMechanical Engineering, Department of
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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