Predicting wind-induced vibrations of high-rise buildings using unsteady CFD and modal analysis

Handle URI:
http://hdl.handle.net/10754/563984
Title:
Predicting wind-induced vibrations of high-rise buildings using unsteady CFD and modal analysis
Authors:
Zhang, Yue; Habashi, Wagdi G (Ed); Khurram, Rooh Ul Amin
Abstract:
This paper investigates the wind-induced vibration of the CAARC standard tall building model, via unsteady Computational Fluid Dynamics (CFD) and a structural modal analysis. In this numerical procedure, the natural unsteady wind in the atmospheric boundary layer is modeled with an artificial inflow turbulence generation method. Then, the turbulent flow is simulated by the second mode of a Zonal Detached-Eddy Simulation, and a conservative quadrature-projection scheme is adopted to transfer unsteady loads from fluid to structural nodes. The aerodynamic damping that represents the fluid-structure interaction mechanism is determined by empirical functions extracted from wind tunnel experiments. Eventually, the flow solutions and the structural responses in terms of mean and root mean square quantities are compared with experimental measurements, over a wide range of reduced velocities. The significance of turbulent inflow conditions and aeroelastic effects is highlighted. The current methodology provides predictions of good accuracy and can be considered as a preliminary design tool to evaluate the unsteady wind effects on tall buildings.
KAUST Department:
KAUST Supercomputing Laboratory (KSL); Core Labs
Publisher:
Elsevier BV
Journal:
Journal of Wind Engineering and Industrial Aerodynamics
Issue Date:
Jan-2015
DOI:
10.1016/j.jweia.2014.11.008
Type:
Article
ISSN:
01676105
Appears in Collections:
Articles; KAUST Supercomputing Laboratory (KSL)

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Yueen
dc.contributor.authorHabashi, Wagdi G (Ed)en
dc.contributor.authorKhurram, Rooh Ul Aminen
dc.date.accessioned2015-08-03T12:21:52Zen
dc.date.available2015-08-03T12:21:52Zen
dc.date.issued2015-01en
dc.identifier.issn01676105en
dc.identifier.doi10.1016/j.jweia.2014.11.008en
dc.identifier.urihttp://hdl.handle.net/10754/563984en
dc.description.abstractThis paper investigates the wind-induced vibration of the CAARC standard tall building model, via unsteady Computational Fluid Dynamics (CFD) and a structural modal analysis. In this numerical procedure, the natural unsteady wind in the atmospheric boundary layer is modeled with an artificial inflow turbulence generation method. Then, the turbulent flow is simulated by the second mode of a Zonal Detached-Eddy Simulation, and a conservative quadrature-projection scheme is adopted to transfer unsteady loads from fluid to structural nodes. The aerodynamic damping that represents the fluid-structure interaction mechanism is determined by empirical functions extracted from wind tunnel experiments. Eventually, the flow solutions and the structural responses in terms of mean and root mean square quantities are compared with experimental measurements, over a wide range of reduced velocities. The significance of turbulent inflow conditions and aeroelastic effects is highlighted. The current methodology provides predictions of good accuracy and can be considered as a preliminary design tool to evaluate the unsteady wind effects on tall buildings.en
dc.publisherElsevier BVen
dc.subjectCAARC standard tall building modelen
dc.subjectCFDen
dc.subjectInflow turbulence generationen
dc.subjectModal analysisen
dc.subjectWind-induced vibrationsen
dc.subjectZonal detached-eddy simulationen
dc.titlePredicting wind-induced vibrations of high-rise buildings using unsteady CFD and modal analysisen
dc.typeArticleen
dc.contributor.departmentKAUST Supercomputing Laboratory (KSL)en
dc.contributor.departmentCore Labsen
dc.identifier.journalJournal of Wind Engineering and Industrial Aerodynamicsen
dc.contributor.institutionComputational Fluid Dynamics Laboratory, Department of Mechanical Engineering, McGill UniversityMontreal, Canadaen
kaust.authorKhurram, Rooh Ul Aminen
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