Exploring Airfoil Tonal Noise Reduction with Elastic Panel Using Perturbation Evolution Method

Abstract

No AccessTechnical NotesExploring Airfoil Tonal Noise Reduction with Elastic Panel Using Perturbation Evolution MethodI. Arif, Di Wu, Garret C. Y. Lam and Randolph C. K. LeungI. ArifHong Kong Polytechnic University, Hung Hum, Kowloon, Hong Kong, People’s Republic of China*Ph.D. Student, Department of Mechanical Engineering; .Search for more papers by this author, Di WuHong Kong Polytechnic University, Hung Hum, Kowloon, Hong Kong, People’s Republic of China†Ph.D. Student, Department of Mechanical Engineering; .Search for more papers by this author, Garret C. Y. LamHong Kong Polytechnic University, Hung Hum, Kowloon, Hong Kong, People’s Republic of China‡Research Fellow, Department of Mechanical Engineering; .Search for more papers by this author and Randolph C. K. LeungHong Kong Polytechnic University, Hung Hum, Kowloon, Hong Kong, People’s Republic of China§Associate Professor, Department of Mechanical Engineering; . Senior Member AIAA.Search for more papers by this authorPublished Online:3 Aug 2020https://doi.org/10.2514/1.J059191SectionsRead Now ToolsAdd to favoritesDownload citationTrack citations ShareShare onFacebookTwitterLinked InRedditEmail About References [1] Brooks T. F., Pope D. S. and Marcolini M. A., “Airfoil Self-Noise and Prediction,” NASA TR 1218, 1989, pp. 2–4. Google Scholar[2] Paterson R. W., Vogt P. G., Fink M. R. and Munch C. L., “Vortex Noise of Isolated Airfoils,” Journal of Aircraft, Vol. 10, No. 5, 1973, pp. 296–302. https://doi.org/10.2514/3.60229 LinkGoogle Scholar[3] Tam C. K. 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I., “On the Generation of Tollmien-Schlichting Waves by Sound,” Fluid Dynamics, Vol. 19, No. 5, 1984, pp. 709–717. https://doi.org/10.1007/BF01093536 Google Scholar Previous article Next article FiguresReferencesRelatedDetailsCited byA computational study of trailing edge noise suppression with embedded structural complianceJASA Express Letters, Vol. 3, No. 2Coupled structural resonance of elastic panels for suppression of airfoil tonal noiseJournal of Fluids and Structures, Vol. 110Distributed surface compliance for airfoil tonal noise reduction at various loading conditionsPhysics of Fluids, Vol. 34, No. 4Spatio-temporal aeroacoustic–structural responses of cavity-backed elastic panel liner exposed to grazing duct flowJournal of Fluids and Structures, Vol. 102Passive airfoil tonal noise reduction by localized flow-induced vibration of an elastic panelAerospace Science and Technology, Vol. 107 What's Popular Volume 58, Number 11November 2020 CrossmarkInformationCopyright (c) 2020 by Randolph C. K. Leung and Garret C. Y. Lam. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.. All requests for copying and permission to reprint should be submitted to CCC at www.copyright.com; employ the eISSN 1533-385X to initiate your request. See also AIAA Rights and Permissions www.aiaa.org/randp. TopicsAeroacousticsAerodynamic PerformanceAerodynamicsAeronautical EngineeringAeronauticsBoundary LayersFlow RegimesFluid DynamicsFluid Flow PropertiesFluid MechanicsFluid Structure InteractionHydraulicsHydrodynamicsVortex Dynamics KeywordsAirfoil ProfilesCompressible FlowFeedback LoopFreestream VelocityBoundary Layer TransitionAngle of AttackFlow Induced VibrationsAcoustic ExcitationAirfoil GeometryFlow CharacteristicsAcknowledgmentsThe first and second authors gratefully acknowledge the research studentship tenable at the Department of Mechanical Engineering at the Hong Kong Polytechnic University. The third and fourth authors gratefully acknowledge the support from the Research Grants Council of the Government of Hong Kong Special Administrative Region under grant number A-PolyU503/15 and a research donation from the Philip K. H. Wong Foundation under grant number 5-ZH1X. The provision of computer time by the University Research Facility in Big Data Analytics (UBDA) at the Hong Kong Polytechnic University is gratefully acknowledged.PDF Received25 October 2019Accepted28 June 2020Published online3 August 2020