An extended assessment of fluid flow models for the prediction of two-dimensional steady-state airfoil aerodynamics

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dc.creatorCarlos Iván Rivera Solorio
dc.creatorOliver Matthias Probst Oleszewski
dc.date2015
dc.date.accessioned2018-10-18T21:22:01Z
dc.date.available2018-10-18T21:22:01Z
dc.descriptionThis work presents the analysis, application, and comparison of thirteen fluid flow models in the prediction of two-dimensional airfoil aerodynamics, considering laminar and turbulent subsonic inflow conditions. Diverse sensitivity analyses of different free parameters (e.g., the domain topology and its discretization, the flow model, and the solution method together with its convergence mechanisms) revealed important effects on the simulations' outcomes. The NACA 4412 airfoil was considered throughout the work and the computational predictions were compared with experiments conducted under a wide range of Reynolds numbers (7e5 ≤ Re ≤ 9e6) and angles-of-attack (-10° ≤ α ≤ 20°). Improvements both in modeling accuracy and processing time were achieved by considering the RS LP-S and the Transition SST turbulence models, and by considering finite volume-based solution methods with preconditioned systems, respectively. The RS LP-S model provided the best lift force predictions due to the adequate modeling of the micro and macro anisotropic turbulence at the airfoil's surface and at the nearby flow field, which in turn allowed the adequate prediction of stall conditions. The Transition-SST model provided the best drag force predictions due to adequate modeling of the laminar-to-turbulent flow transition and the surface shear stresses. Conclusions, recommendations, and a comprehensive research agenda are presented based on validated computational results. © 2015 Jose F. Herbert-Acero et al.
dc.identifier.doi10.1155/2015/854308
dc.identifier.issn1024123X
dc.identifier.urihttp://hdl.handle.net/11285/630456
dc.identifier.volume2015
dc.languageeng
dc.publisherHindawi Limited
dc.relationhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84936804041&doi=10.1155%2f2015%2f854308&partnerID=40&md5=3e025a1df10253a71143284640fbb497
dc.relationInvestigadores
dc.relationEstudiantes
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceMathematical Problems in Engineering
dc.subjectAerodynamics
dc.subjectAirfoils
dc.subjectAngle of attack
dc.subjectDrag
dc.subjectForecasting
dc.subjectNewtonian flow
dc.subjectReynolds number
dc.subjectSensitivity analysis
dc.subjectShear flow
dc.subjectShear stress
dc.subjectSubsonic aerodynamics
dc.subjectTopology
dc.subjectTurbulence models
dc.subjectAirfoil aerodynamics
dc.subjectAnisotropic turbulence
dc.subjectComprehensive research
dc.subjectComputational predictions
dc.subjectComputational results
dc.subjectSST turbulence models
dc.subjectTurbulent flow transition
dc.subjectTwo-dimensional airfoils
dc.subjectFlow of fluids
dc.subject.classification7 INGENIERÍA Y TECNOLOGÍA
dc.titleAn extended assessment of fluid flow models for the prediction of two-dimensional steady-state airfoil aerodynamics
dc.typeArtículo
refterms.dateFOA2018-10-18T21:22:01Z

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