Author: George G. MateerPublisher:
ISBN:
Category :
Languages : en
Pages : 10
Book Description
An Experimental Investigation of a Supercritical Airfoil at Transonic Speeds
Author: George G. MateerExperimental Investigation of a Supercritical Airfoil Oscillating in Pitch at Transonic Flow
Author: Cornelia HillenhermsPublisher:
ISBN: 9783832220143
Category :
Languages : en
Pages : 148
Book Description
Experimental Investigation of Buffet Onset and Penetration on a Supercritical Airfoil at Transonic Speeds
Author: E. StanewskyPublisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
An experimental investigation was carried out on the supercritical airfoil CAST 7/DOA1 to determine the influence of three parameters--Mach number, angle of attack and most of all Reynolds number--on the buffet process and especially on the shock oscillation frequency and amplitude. For this investigation, the model was equipped with regular pressure orifices, dynamic pressure transducers and hot-film sensors, the latter used to determine transition location and regions of separation. The flow field was observed by a holographic high-speed, real-time interferometer. Analysis of the results revealed that the buffet process is essentially driven by the interaction of the upper surface shock wave with the boundary layer, especially as it influences the development of the shock-induced separation bubble, and the resultant change in flow conditions at the airfoil trailing edge and that, within the domain of intensive buffet, the shock oscillation frequency decreases with Reynolds number while the amplitude increases.
An Experimental Study of Transonic Flow about a Supercritical Airfoil. Static Pressure and Drag Data Obtained from Tests of a Supercritical Airfoil and an NACA 0012 Airfoil at Transonic Speeds, Supplement
Author: Comparison of Computational and Experimental Results for a Supercritical Airfoil
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781729136201
Category : Science
Languages : en
Pages : 36
Book Description
A computational investigation was performed to study the flow over a supercritical airfoil model. Solutions were obtained for steady-state transonic flow conditions using a thin-layer Navier-Stokes flow solver. The results from this computational study were compared with time-averaged experimental data obtained over a wide Reynolds number range at transonic speeds in the Langley 0.3-Meter Transonic Cryogenic Tunnel. Comparisons were made at a nominal Mach number of 0.72 and at Reynolds numbers ranging from 6 x 10(exp 6) to 35 x 10(exp 6). Rivers, Melissa B. and Wahls, Richard A. Langley Research Center RTOP 505-59-10-31...
An Experimental Study of Transonic Flow about a Supercritical Airfoil
Author: Experimental Investigation at Transonic Speeds of Pressure Distributions Over Wedge and Circular-arc Airfoil Sections and Evaluation of Perforated-wall
Author: Earl D. KnechtelAn Experimental Investigation of the Parallel Vortex-airfoil Interaction at Transonic Speeds
Author: Iraj M. KalkhoranComparison of Computational and Experimental Results for a Supercritical Airfoil
Author: Melissa B. RiversPublisher:
ISBN:
Category :
Languages : en
Pages : 26
Book Description
Abstract: A computational investigation was performed to study the flow over a supercritical airfoil model. Solutions were obtained for steady-state transonic flow conditions using a thin-layer Navier-Stokes flow solver. The results from this computational study were compared with time-averaged experimental data obtained over a wide Reynolds number range at transonic speeds in the Langley 0.3-Meter Transonic Cryogenic Tunnel. Comparisons were made at a nominal Mach number of 0.72 and at Reynolds numbers ranging from 6 X 10(6) to 35 X 10(6).
An Experimental Investigation of the Aerodynamic Characteristics of a Thin Supercritical Airfoil with Small Leading Edge Radius
Author: Richard L. Perry (CAPT, USAF.)Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 150
Book Description