Two-way fluid-structure interaction of medium-sized heliostats

dc.contributor.authorWolmarans, Joshua Raymond
dc.contributor.authorCraig, K.J. (Kenneth)
dc.contributor.emailken.craig@up.ac.zaen_ZA
dc.date.accessioned2020-07-11T08:48:08Z
dc.date.issued2019-07-26
dc.description.abstractVortex shedding and the resultant transient loadings on a medium sized heliostat are investigated in this paper. Reynolds-Averaged Navier-Stokes (RANS) Computational Fluid Dynamics (CFD) is used as a validation case along with laminar and Large Eddy Simulation Fluid-Structure Interaction (FSI) validation. 2-Dimensional unsteady RANS and FSI are performed where the shedding frequency is found at the experimentally predicted Strouhal number, which is also in the region of concern as confirmed via a modal analysis of the heliostat structure. Stress-Blended Eddy Simulation (SBES) is then used as a scale-resolving method in order to accurately simulate the transient peak loading and vortex shedding in three dimensions. The SBES simulation results show that the 2D URANS results captured one of the main vortex-shedding frequencies. Initial deformation results from a transient structural analysis using the temporal SBES heliostat surface pressure fields as input indicate that the method holds promise in predicting the transient response of heliostats.en_ZA
dc.description.departmentMechanical and Aeronautical Engineeringen_ZA
dc.description.embargo2020-07-26
dc.description.librarianam2020en_ZA
dc.description.urihttps://aip.scitation.org/journal/apcen_ZA
dc.identifier.citationWolmarans, J.R. & Craig, K.J. Two-way fluid-structure interaction of medium-sized heliostats. AIP Conference Proceedings 2126, 030064 (2019); https://DOI.org/10.1063/1.5117576.en_ZA
dc.identifier.isbn978-0-7354-1866-0
dc.identifier.issn0094-243X (print)
dc.identifier.issn1551-7616 (online)
dc.identifier.other10.1063/1.5117576
dc.identifier.urihttp://hdl.handle.net/2263/75149
dc.language.isoenen_ZA
dc.publisherAmerican Institute of Physicsen_ZA
dc.rights© 2019 Author(s).en_ZA
dc.subjectHeliostatsen_ZA
dc.subjectReynolds-averaged Navier-Stokes (RANS)en_ZA
dc.subjectComputational fluid dynamics (CFD)en_ZA
dc.subjectFluid-structure interaction (FSI)en_ZA
dc.subjectStress-blended Eddy simulation (SBES)en_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-04
dc.subject.otherSDG-04: Quality education
dc.subject.otherEngineering, built environment and information technology articles SDG-07
dc.subject.otherSDG-07: Affordable and clean energy
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-13
dc.subject.otherSDG-13: Climate action
dc.titleTwo-way fluid-structure interaction of medium-sized heliostatsen_ZA
dc.typeArticleen_ZA

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