Periodic transonic flow and control
Autor: | Srinivasan Raghunathan, Emmanuel Benard, Juliana Early, Juergen Quest, Catalin Tulita |
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Přispěvatelé: | Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), European Transonic Windtunnel - ETW (GERMANY), Queen's University Belfast - QUB (UNITED KINGDOM) |
Jazyk: | angličtina |
Rok vydání: | 2008 |
Předmět: |
Airfoil
Shock wave Engineering Astrophysics::High Energy Astrophysical Phenomena Mathematics::Analysis of PDEs Aerospace Engineering 02 engineering and technology Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics 0203 mechanical engineering Autre Transonic flow control 0103 physical sciences Astrophysics::Galaxy Astrophysics 020301 aerospace & aeronautics Shock (fluid dynamics) business.industry Mechanics Aeroelasticity transonic flow flow control Periodic function Flow control (fluid) Classical mechanics shockwave business Transonic CFD analysis |
Zdroj: | Raghunathan, S, Early, J M, Tulita, C, Benard, E & Quest, J 2008, ' Periodic transonic flow and control ', The Aeronautical Journal, vol. 112, no. 1127, pp. 1-16 . < http://aerosociety.com/News/Publications/Aero-Journal/Online/314/Periodic-transonic-flow-and-control > |
Popis: | The current understanding of periodic transonic flow is reviewed briefly. The effects of boundary-layer transition, non-adiabatic wall conditions and modifications to the aerofoil surface geometry at the shock interactions on periodic transonic flow are discussed. Through the methods presented, it is proposed that the frequency of periodic motion can be predicted with reasonable accuracy, but there are limitations on the prediction of buffet boundaries associated with periodic transonic flows. Several methods have been proposed by which the periodic motion may be virtually eliminated, most relevantly by altering the position of transition fix, contouring the aerofoils surface or adding a porous surface and a cavity in the region of shock interaction. In addition, it has been shown that heat transfer can have a significant effect on buffet. |
Databáze: | OpenAIRE |
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