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An analysis of buzzing in supersonic ram jets by a modified one-dimensional nonstationary wave theory / / by Robert L. Trimpi
| An analysis of buzzing in supersonic ram jets by a modified one-dimensional nonstationary wave theory / / by Robert L. Trimpi |
| Autore | Trimpi Robert L. |
| Pubbl/distr/stampa | Washington, [D.C.] : , : National Advisory Committee for Aeronautics, , 1956 |
| Descrizione fisica | 1 online resource (72 pages) : illustrations |
| Collana | Technical notes / National Advisory Committee for Aeronautics |
| Soggetto topico |
Aerodynamics, Supersonic
Airplanes - Ramjet engines Diffusers Shock waves Unsteady flow (Aerodynamics) Vibration (Aeronautics) |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910713877703321 |
Trimpi Robert L.
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| Washington, [D.C.] : , : National Advisory Committee for Aeronautics, , 1956 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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An analytical technique for approximating unsteady aerodynamics in the time domain / / H.J. Dunn
| An analytical technique for approximating unsteady aerodynamics in the time domain / / H.J. Dunn |
| Autore | Dunn H. J. <1947-> |
| Pubbl/distr/stampa | [Washington, D.C.] : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , November 1980 |
| Descrizione fisica | 1 online resource (28 pages) : illustrations |
| Collana | NASA technical paper |
| Soggetto topico |
Aerodynamic forces
Aeroelasticity Least squares method Pade approximation Wing oscillations Aeroelasticity - Mathematical models Padé approximant Unsteady flow (Aerodynamics) |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910707468803321 |
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Dunn H. J. <1947->
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| [Washington, D.C.] : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , November 1980 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Calculation of three-dimensional unsteady transonic flows past helicopter blades / / J.J. Chattot
| Calculation of three-dimensional unsteady transonic flows past helicopter blades / / J.J. Chattot |
| Autore | Chattot J. J. |
| Pubbl/distr/stampa | [Washington, D.C.] : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , October 1980 |
| Descrizione fisica | 1 online resource (29 pages) : illustrations |
| Collana |
NASA technical paper
AVRADCOM technical report |
| Soggetto topico |
Difference equations
Finite difference theory Helicopter design Rotor aerodynamics Transonic flow Helicopters - Aerodynamics Rotors (Helicopters) - Aerodynamics Unsteady flow (Aerodynamics) |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910707472003321 |
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Chattot J. J.
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| [Washington, D.C.] : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , October 1980 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Calculation of viscous effects on transonic flow for oscillating airfoils and comparisons with experiment / / James T. Howlett and Samuel R. Bland
| Calculation of viscous effects on transonic flow for oscillating airfoils and comparisons with experiment / / James T. Howlett and Samuel R. Bland |
| Autore | Howlett James T. |
| Pubbl/distr/stampa | Washington, D.C. : , : National Aeronautics and Space Administration, Scientific and Technical Information Office, , September 1987 |
| Descrizione fisica | 1 online resource (74 pages) : illustrations |
| Collana | NASA/TP |
| Soggetto topico |
Transonic flow
Viscous flow Computational fluid dynamics Airfoils Oscillations Aerodynamics, Transonic Unsteady flow (Aerodynamics) Oscillating wings (Aerodynamics) Boundary layer |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910709895003321 |
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Howlett James T.
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| Washington, D.C. : , : National Aeronautics and Space Administration, Scientific and Technical Information Office, , September 1987 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Comparison of experimental and theoretical turbulence reduction characteristics for screens, honeycomb, and honeycomb-screen combinations / / James Scheiman
| Comparison of experimental and theoretical turbulence reduction characteristics for screens, honeycomb, and honeycomb-screen combinations / / James Scheiman |
| Autore | Scheiman James |
| Pubbl/distr/stampa | [Washington, D.C.] : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , December 1981 |
| Descrizione fisica | 1 online resource (52 pages) : illustrations |
| Collana | NASA/TP |
| Soggetto topico |
Transonic wind tunnels
Unsteady flow Turbulence Unsteady flow (Aerodynamics) |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910717090203321 |
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Scheiman James
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| [Washington, D.C.] : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , December 1981 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Critical evaluation of the unsteady aerodynamics approach to dynamic stability at high angles of attack : final report / / prepared by W.H. Hui
| Critical evaluation of the unsteady aerodynamics approach to dynamic stability at high angles of attack : final report / / prepared by W.H. Hui |
| Autore | Hui W. H. |
| Pubbl/distr/stampa | [Washington, D.C.] : , : [National Aeronautics and Space Administration], , 1985 |
| Descrizione fisica | 1 online resource (approximately 48 pages) |
| Collana | [NASA contractor report] |
| Soggetto topico |
Aerofoils
Equations of motion Unsteady flow (Aerodynamics) Stability of airplanes Aerodynamic stability Airfoils Branching (mathematics) Hysteresis Oscillations Unsteady aerodynamics |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Critical evaluation of the unsteady aerodynamics approach to dynamic stability at high angles of attack |
| Record Nr. | UNINA-9910715477503321 |
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Hui W. H.
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| [Washington, D.C.] : , : [National Aeronautics and Space Administration], , 1985 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Rotational augmentation on a 2.3 MW rotor blade with thick flatback airfoil cross-sections : preprint / / S. Schreck [and four others]
| Rotational augmentation on a 2.3 MW rotor blade with thick flatback airfoil cross-sections : preprint / / S. Schreck [and four others] |
| Autore | Schreck S. |
| Pubbl/distr/stampa | [Golden, Colo.] : , : National Renewable Energy Laboratory, , 2013 |
| Descrizione fisica | 1 online resource (9 pages) : color illustrations |
| Collana | NREL/CP |
| Soggetto topico |
Wind turbines
Wind power Unsteady flow (Aerodynamics) Aerofoils - Testing |
| Soggetto genere / forma | Conference papers and proceedings. |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Rotational augmentation on a 2.3 MW rotor blade with thick flatback airfoil cross-sections |
| Record Nr. | UNINA-9910704497203321 |
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Schreck S.
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| [Golden, Colo.] : , : National Renewable Energy Laboratory, , 2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Unsteady aerodynamics : potential and vortex methods / / Grigorios Dimitriadis
| Unsteady aerodynamics : potential and vortex methods / / Grigorios Dimitriadis |
| Autore | Dimitriadis Grigorios <1972-> |
| Edizione | [First edition.] |
| Pubbl/distr/stampa | Chichester, England : , : John Wiley & Sons Ltd, , [2024] |
| Descrizione fisica | 1 online resource (579 pages) |
| Disciplina | 629.1323 |
| Collana | Aerospace series |
| Soggetto topico | Unsteady flow (Aerodynamics) |
| ISBN |
1-119-76256-1
1-119-76253-7 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover -- Title Page -- Copyright -- Contents -- Preface -- About the Companion Website -- Chapter 1 Introduction -- 1.1 Why Potential and Vortex Methods? -- 1.2 Outline of This Book -- References -- Chapter 2 Unsteady Flow Fundamentals -- 2.1 Introduction -- 2.2 From Navier-Stokes to Unsteady Incompressible Potential Flow -- 2.2.1 Irrotational Flow -- 2.2.2 Laplace's and Bernoulli's Equations -- 2.2.3 Motion in an Incompressible, Inviscid, Irrotational Fluid -- 2.3 Incompressible Potential Flow Solutions -- 2.3.1 Green's Third Identity -- 2.3.2 Solutions in Two Dimensions -- 2.4 From Navier-Stokes to Unsteady Compressible Potential Flow -- 2.4.1 The Compressible Bernoulli Equation -- 2.4.2 The Full Potential Equation -- 2.4.3 The Transonic Small Disturbance Equation -- 2.4.4 The Linearised Small Disturbance Equation -- 2.4.5 The Compressible Unsteady Pressure Coefficient -- 2.4.6 Motion in a Compressible, Inviscid, Irrotational Fluid -- 2.5 Subsonic Linearised Potential Flow Solutions -- 2.6 Supersonic Linearised Potential Flow Solutions -- 2.7 Vorticity and Circulation -- 2.7.1 Solutions of the Vorticity Transport Equations -- 2.7.2 Vorticity‐Moment and Kutta-Joukowski Theorems -- 2.7.3 The Wake and the Kutta Condition -- 2.8 Concluding Remarks -- References -- Chapter 3 Analytical Incompressible 2D Models -- 3.1 Introduction -- 3.2 Steady Thin Airfoil Theory -- 3.3 Fundamentals of Wagner and Theodorsen Theory -- 3.3.1 Flow Induced by the Source Distribution -- 3.3.2 Flow Induced by the Vortex Distribution -- 3.3.3 Imposing the Impermeability Boundary Condition -- 3.3.4 Calculating the Loads Due to the Source Distribution -- 3.3.5 Imposing the Kutta Condition -- 3.4 Wagner Theory -- 3.4.1 The Wagner Function -- 3.4.2 Drag and Thrust -- 3.4.3 General Motion -- 3.4.4 Total Loads -- 3.4.5 Quasi‐Steady Aerodynamics -- 3.5 Theodorsen Theory.
3.5.1 Theodorsen's Function -- 3.5.2 Total Loads for Sinusoidal Motion -- 3.5.3 General Motion -- 3.6 Finite State Theory -- 3.6.1 Glauert Expansions -- 3.6.2 Solution of the Impermeability Equation -- 3.6.3 Completing the Equations -- 3.6.4 Kutta Condition and Aerodynamic Loads -- 3.7 Concluding Remarks -- 3.8 Exercises -- References -- Chapter 4 Numerical Incompressible 2D Models -- 4.1 Introduction -- 4.2 Lumped Vortex Method -- 4.2.1 Unsteady Flows -- 4.2.2 Free Wakes -- 4.3 Gust Encounters -- 4.3.1 Pitching and Plunging Wings -- 4.4 Frequency Domain Formulation of the Lumped Vortex Method -- 4.5 Source and Vortex Panel Method -- 4.5.1 Impulsively Started Flow -- 4.5.2 Thrust and Propulsive Efficiency -- 4.6 Theodorsen's Function and Wake Shape -- 4.7 Steady and Unsteady Kutta Conditions -- 4.7.1 The Unsteady Kutta Condition -- 4.8 Concluding Remarks -- 4.9 Exercises -- References -- Chapter 5 Finite Wings -- 5.1 Introduction -- 5.1.1 Rigid Wings and Flexible Wings -- 5.2 Finite Wings in Steady Flow -- 5.3 The Impulsively Started Elliptical Wing -- 5.3.1 The Solution by Jones -- 5.3.2 Unsteady Lifting Line Solution -- 5.4 The Unsteady Vortex Lattice Method -- 5.4.1 Impulsive Start of an Elliptical Wing -- 5.4.2 Other Planforms -- 5.5 Rigid Harmonic Motion -- 5.5.1 Longitudinal Harmonic Motion -- 5.5.2 Frequency Domain Load Calculations -- 5.5.3 Lateral Harmonic Motion -- 5.5.4 Aerodynamic Stability Derivatives -- 5.6 The 3D Source and Doublet Panel Method -- 5.7 Flexible Motion -- 5.7.1 Source and Doublet Panel Method in the Frequency Domain -- 5.8 Concluding Remarks -- 5.9 Exercises -- References -- Chapter 6 Unsteady Compressible Flow -- 6.1 Introduction -- 6.2 Steady Subsonic Potential Flow -- 6.3 Unsteady Subsonic Potential Flow -- 6.3.1 The Doublet Lattice Method -- 6.3.2 Unsteady 3D Subsonic Source and Doublet Panel Method. 6.3.3 Steady Correction of the Doublet Lattice Method -- 6.3.4 Unsteady 2D Subsonic Source and Doublet Panel Method -- 6.4 Unsteady Supersonic Potential Flow -- 6.4.1 The Mach Box Method -- 6.4.2 The Mach Panel Method -- 6.5 Transonic Flow -- 6.5.1 Steady Transonic Flow -- 6.5.2 Time Linearised Transonic Small Perturbation Equation -- 6.5.3 Unsteady Transonic Correction Methods -- 6.6 Concluding Remarks -- 6.7 Exercises -- References -- Chapter 7 Viscous Flow -- 7.1 Introduction -- 7.1.1 Steady Flow Separation Mechanisms -- 7.1.2 Dynamic Stall -- 7.2 Impulsively Started Flow around a 2D Flat Plate at High Angles of Attack -- 7.2.1 Flow Separation Criteria -- 7.3 Flow Around a 2D Circular Cylinder -- 7.3.1 The Discrete Vortex Method for Bluff Bodies -- 7.3.2 Modelling the Flow Past a Circular Cylinder Using the DVM -- 7.4 Flow Past 2D Rectangular Cylinders -- 7.4.1 Modelling the Flow Past Rectangular Cylinders Using the DVM -- 7.5 Concluding Remarks -- 7.6 Exercises -- References -- A Fundamental Solutions of Laplace's Equation -- A.1 The 2D Point Source -- A.2 The 2D Point Vortex -- A.3 The Source Line Panel -- A.4 The Vortex Line Panel -- A.5 The Horseshoe Vortex -- A.6 The Vortex Line Segment -- A.7 The Vortex Ring -- A.8 The 3D Point Source -- A.9 The 3D Point Doublet -- A.10 The Source Surface Panel -- A.11 The Doublet Surface Panel -- References -- B Fundamental Solutions of the Linearized Small Disturbance Equation -- B.1 The Subsonic Doublet Surface Panel -- B.2 The Acoustic Source Surface Panel -- B.3 The Acoustic Doublet Surface Panel -- B.4 The Supersonic Source Surface Panel -- References -- C Wagner's Derivation of the Kutta Condition -- Reference -- Index -- EULA. |
| Record Nr. | UNINA-9910831173503321 |
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Dimitriadis Grigorios <1972->
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| Chichester, England : , : John Wiley & Sons Ltd, , [2024] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Unsteady transonic aerodynamics [[electronic resource] /] / edited by David Nixon
| Unsteady transonic aerodynamics [[electronic resource] /] / edited by David Nixon |
| Pubbl/distr/stampa | Washington, D.C., : American Institute of Aeronautics and Astronautics, Inc., c1989 |
| Descrizione fisica | 1 online resource (389 p.) |
| Disciplina |
629.1 s
629.132/304 |
| Altri autori (Persone) | NixonDavid |
| Collana | Progress in astronautics and aeronautics |
| Soggetto topico |
Unsteady flow (Aerodynamics)
Aerodynamics, Transonic |
| Soggetto genere / forma | Electronic books. |
| ISBN |
1-60086-594-1
1-60086-375-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Physical phenomena associated with unsteady transonic flows / D.G. Mabey -- Basic equations for unsteady transonic flow / David Nixon -- Practical problems : airplanes / Atlee M. Cunningham Jr. -- Basic numerical methods / Joseph L. Steger and William R. Van Dalsem -- Computational methods for unsteady transonic flows / John W. Edwards and James L. Thomas -- Application of transonic flow analysis to helicopter rotor problems / F.X. Caradonna -- Unsteady aerodynamics for turbomachinery aeroelastic applications / Joseph M. Verdon -- Alternative methods for modeling unsteady transonic flows / David Nixon. |
| Record Nr. | UNINA-9910457203203321 |
| Washington, D.C., : American Institute of Aeronautics and Astronautics, Inc., c1989 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Unsteady transonic aerodynamics [[electronic resource] /] / edited by David Nixon
| Unsteady transonic aerodynamics [[electronic resource] /] / edited by David Nixon |
| Pubbl/distr/stampa | Washington, D.C., : American Institute of Aeronautics and Astronautics, Inc., c1989 |
| Descrizione fisica | 1 online resource (389 p.) |
| Disciplina |
629.1 s
629.132/304 |
| Altri autori (Persone) | NixonDavid |
| Collana | Progress in astronautics and aeronautics |
| Soggetto topico |
Unsteady flow (Aerodynamics)
Aerodynamics, Transonic |
| ISBN |
1-60086-594-1
1-60086-375-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Physical phenomena associated with unsteady transonic flows / D.G. Mabey -- Basic equations for unsteady transonic flow / David Nixon -- Practical problems : airplanes / Atlee M. Cunningham Jr. -- Basic numerical methods / Joseph L. Steger and William R. Van Dalsem -- Computational methods for unsteady transonic flows / John W. Edwards and James L. Thomas -- Application of transonic flow analysis to helicopter rotor problems / F.X. Caradonna -- Unsteady aerodynamics for turbomachinery aeroelastic applications / Joseph M. Verdon -- Alternative methods for modeling unsteady transonic flows / David Nixon. |
| Record Nr. | UNINA-9910781700103321 |
| Washington, D.C., : American Institute of Aeronautics and Astronautics, Inc., c1989 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Soggetto topico
-
Unsteady flow (Aerodynamics)
(12)
- Aerodynamics, Transonic (5)
- Airfoils (2)
- Oscillations (2)
- Transonic flow (2)