Author: Fengjun LiuPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 300
Book Description
Numerical Studies of Transition for Flows Around Multi-element Airfoils
Author: Fengjun LiuPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 300
Book Description
Theoretical and Numerical Studies of Multi-element Airfoil Aerodynamics
Author: James Chen-yuan WuPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 72
Book Description
A Numerical Study of General Viscous Flows Around Multi-element Airfoils
Author: C. M. WangDirect Numerical Simulation of Flow Transition in Compressible Boundary Layer Around Airfoils
Author: Chaoqun LiuPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 48
Book Description
The three dimensional development of flow transition in both subsonic and supersonic Joukowsky airfoil boundary layers are studied by direct numerical simulation (DNS). The numerical simulation is performed by a spatial approach. A full compressible Navier Stokes system in curvilinear coordinates is employed so that we can simulate the transition around general geometric configurations. The numerical results agree very well with the linear stability theory (LST) at the linear growth stage for both primary and second modes in the flat plate boundary layers. The whole process of controlled flow transition induced by blowing/suction around airfoils is simulated by directly solving the N-S system with Reynolds number around one million. Some differences are found in comparison to the incompressible counterpart, and some new phenomena for the transition around airfoils are observed which at least qualitatively agree with physics.
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456
Book Description
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.
Numerical Studies of the Flow Around an Airfoil at Low Reynolds Number
Author: Lloyd Edward JonesNumerical Studies of Unsteady Transonic Flow Over an Oscillating Airfoil
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781723456466
Category :
Languages : en
Pages : 26
Book Description
A finite-difference solution to the Navier-Stokes equations combined with a time-varying grid-generation technique was used to compute unsteady transonic flow over an oscillating airfoil. These computations were compared with experimental data (obtained at Ames Research Center) which form part of the AGARD standard configuration for aeroelastic analysis. A variety of approximations to the full Navier-Stokes equations was used to determine the effect of frequency, shock-wave motion, flow separation, and airfoil geometry on unsteady pressures and overall air loads. Good agreement is shown between experiment and theory with the limiting factor being the lack of a reliable turbulence model for high-Reynolds-number, unsteady transonic flows. Chyu, W. J. and Davis, S. S. Ames Research Center NASA-TM-86011, A-9857, NAS 1.15:86011
Aeronautical Engineering
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 712
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Author: 
Author: