Flutter and Forced Response Analyses of Cascades Using a Two-Dimensional Linearized Euler Solver PDF Download
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Author: T. S. R. Reddy
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Author: T. S. R. Reddy
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720551249
Category :
Languages : en
Pages : 32
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Flutter and forced response analyses for a cascade of blades in subsonic and transonic flow is presented. The structural model for each blade is a typical section with bending and torsion degrees of freedom. The unsteady aerodynamic forces due to bending and torsion motions. and due to a vortical gust disturbance are obtained by solving unsteady linearized Euler equations. The unsteady linearized equations are obtained by linearizing the unsteady nonlinear equations about the steady flow. The predicted unsteady aerodynamic forces include the effect of steady aerodynamic loading due to airfoil shape, thickness and angle of attack. The aeroelastic equations are solved in the frequency domain by coupling the un- steady aerodynamic forces to the aeroelastic solver MISER. The present unsteady aerodynamic solver showed good correlation with published results for both flutter and forced response predictions. Further improvements are required to use the unsteady aerodynamic solver in a design cycle.Reddy, T. S. R. and Srivastava, R. and Mehmed, O.Glenn Research CenterEULER EQUATIONS OF MOTION; CASCADE FLOW; FLUTTER ANALYSIS; AEROELASTICITY; NONLINEAR EQUATIONS; UNSTEADY FLOW; PREDICTION ANALYSIS TECHNIQUES; UNSTEADY AERODYNAMICS; STEADY FLOW
Author: Torsten H. Fransson
Publisher: Springer Science & Business Media
ISBN: 9401150400
Category : Science
Languages : en
Pages : 835
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Twenty-one years have passed since the first symposium in this series was held in Paris (1976). Since then there have been meetings in Lausanne (1980), Cambridge (1984), Aachen (1987), Beijing (1989), Notre Dame (1991) and Fukuoka (1994). During this period a tremendous development in the field of unsteady aerodynamics and aeroelasticity in turbomachines has taken place. As steady-state flow conditions become better known, and as blades in the turbomachine are constantly pushed towards lower weight, and higher load and efficiency, the importance of unsteady phenomena appear more clearly. th The 8 Symposium was, as the previous ones, of high quality. Furthermore, it presented the audience with the latest developments in experimental, numerical and theoretical research. More papers than ever before were submitted to the conference. As the organising committee wanted to preserve the uniqueness of the symposium by having single sessions, and thus mingle speakers and audience with different backgrounds in this interdisciplinary field, only a limited number of papers could be accepted. 54 papers were accepted and presented at the meeting, all of which are included in the present proceedings.
Author:
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Category : Turbomachines
Languages : en
Pages : 800
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Category : Mechanical engineering
Languages : en
Pages : 498
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Author:
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Category : Aeronautics
Languages : en
Pages : 700
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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Category : Government publications
Languages : en
Pages : 1632
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Category : Fluid dynamics
Languages : en
Pages : 436
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ISBN:
Category : Mechanical engineering
Languages : en
Pages : 518
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Author:
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ISBN:
Category : Aerodynamics
Languages : en
Pages : 878
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