contributor author | A. M. Ingraldi | |
contributor author | T. T. Kariya | |
contributor author | R. J. Re | |
contributor author | O. C. Pendergraft | |
date accessioned | 2017-05-08T23:38:19Z | |
date available | 2017-05-08T23:38:19Z | |
date copyright | October, 1992 | |
date issued | 1992 | |
identifier issn | 1528-8919 | |
identifier other | JETPEZ-26709#809_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/110189 | |
description abstract | A twin-engine, low-wing transport model, with a supercritical wing designed for a cruise Mach number of0.77 and a lift coefficient of 0.55, was tested in the 16-Foot Transonic Tunnel at NASA Langley Research Center. The purpose of this test was to compare the wing/nacelle interference effects of superfans (very high bypass ratio turbofans, BPR ≈ 18) with the interference effects of advanced turbofans (BPR ≈ 6). Flow-through nacelles were used in this study. Forces and moments on the complete model were measured using a strain gage balance and extensive surface static pressure measuements (383 orifice locations) were made on the model’s wing, nacelles, and pylons. Data were taken at Mach numbers from 0.50 to 0.80 and model angle-of-attack was varied from −4 to +8 deg. Results of the investigation indicate that superfan nacelles can be installed with approximately the same drag penalty as conventional turbofan nacelles. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Interference Effects of Very High Bypass Ratio Nacelle Installations on a Low-Wing Transport | |
type | Journal Paper | |
journal volume | 114 | |
journal issue | 4 | |
journal title | Journal of Engineering for Gas Turbines and Power | |
identifier doi | 10.1115/1.2906661 | |
journal fristpage | 809 | |
journal lastpage | 815 | |
identifier eissn | 0742-4795 | |
keywords | Wings | |
keywords | Turbofans | |
keywords | Mach number | |
keywords | Engines | |
keywords | Drag (Fluid dynamics) | |
keywords | Strain gages | |
keywords | Tunnels | |
keywords | Force | |
keywords | Pressure AND Flow (Dynamics) | |
tree | Journal of Engineering for Gas Turbines and Power:;1992:;volume( 114 ):;issue: 004 | |
contenttype | Fulltext | |