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Aerodynamic Performance Of 05 Meter Diameter 337 Meter Per Second Tip Speed 15 Pressure Ratio Single Stage Fan Designed For Low Noise Aircraft Engines
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Book Synopsis Aerodynamic Performance of 0.5-meter-diameter, 337-meter-per-second Tip Speed, 1.5-pressure-ratio, Single-stage Fan Designed for Low Noise Aircraft Engines by : Thomas F. Gelder
Download or read book Aerodynamic Performance of 0.5-meter-diameter, 337-meter-per-second Tip Speed, 1.5-pressure-ratio, Single-stage Fan Designed for Low Noise Aircraft Engines written by Thomas F. Gelder and published by . This book was released on 1974 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overall and blade-element aerodynamic performance of a 0.271-scale model of QF-1 are presented, examined, and then compared and evaluated with that from similar low noise fan stage designs. The tests cover a wide range of speeds and weight flows along with variations in stator setting angle and stator axial spacing from the rotor. At design speed with stator at design setting angle and a fixed distance between stage measuring stations, there were no significant effects of increasing the axial spacing between rotor stator from 1.0 to 3.5 rotor chords on stage overall pressure ratio, efficiency or stall margin.
Download or read book NASA Technical Note written by and published by . This book was released on 1975 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1975 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inlet Noise of 0.5-meter-diameter NASA QF-1 Fan as Measured in an Unmodified Compressor Aerodynamic Test Facility and in an Anechoic Chamber by : Thomas F. Gelder
Download or read book Inlet Noise of 0.5-meter-diameter NASA QF-1 Fan as Measured in an Unmodified Compressor Aerodynamic Test Facility and in an Anechoic Chamber written by Thomas F. Gelder and published by . This book was released on 1975 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic and aerodynamic performance of 1.83-meter (6-ft) diameter 1.25-pressure-ratio fan (QF-8) by : Richard P. Woodward
Download or read book Acoustic and aerodynamic performance of 1.83-meter (6-ft) diameter 1.25-pressure-ratio fan (QF-8) written by Richard P. Woodward and published by . This book was released on 1976 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic and Aerodynamic Performance of a 1.83-meter- (6-ft-) Diameter 1.2-pressure-ratio Fan (QF-6) by : Richard P. Woodward
Download or read book Acoustic and Aerodynamic Performance of a 1.83-meter- (6-ft-) Diameter 1.2-pressure-ratio Fan (QF-6) written by Richard P. Woodward and published by . This book was released on 1974 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Performance of a 1.20-pressure Ratio Fan Stage Designed from Low Noise by : G. W. Lewis (Jr)
Download or read book Aerodynamic Performance of a 1.20-pressure Ratio Fan Stage Designed from Low Noise written by G. W. Lewis (Jr) and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aerodynamic design and the overall blade element performance of a 51 centimeter diameter fan stage is presented. The stage was designed to minimize the noise generated by rotor stator interactions. The design pressure ratio was 1.20 at a flow of 30.6 kilograms per second and a rotor blade tip speed of 228.6 meters per second. At design speed the rotor peak efficiency was 0.935. The peak efficiency of the stage, however, was 0.824. The radial distribution of rotor performance parameters at peak efficiency and design speed indicated excellent agreement with design values.
Book Synopsis NASA Scientific and Technical Publications by :
Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1987 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Noise and Inflow Distortion Sources in the NASA QF-1B Fan Using Measured Blade and Vane Pressures by : Donald B. Hanson
Download or read book Study of Noise and Inflow Distortion Sources in the NASA QF-1B Fan Using Measured Blade and Vane Pressures written by Donald B. Hanson and published by . This book was released on 1977 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic and Aerodynamic Performance of a 6-foot-diameter Fan for Turbofan Engines by : Arthur W. Goldstein
Download or read book Acoustic and Aerodynamic Performance of a 6-foot-diameter Fan for Turbofan Engines written by Arthur W. Goldstein and published by . This book was released on 1970 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low noise turbofan engine without aerodynamic blade loading.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparison of the Noise Characteristics of Two Low Pressure Ratio Fans with a High Throat Mach Number Inlet by : Howard L. Wesoky
Download or read book Comparison of the Noise Characteristics of Two Low Pressure Ratio Fans with a High Throat Mach Number Inlet written by Howard L. Wesoky and published by . This book was released on 1978 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1975 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Download or read book The NASA Quiet Engine written by and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fan and Wing Force Data from Wind-tunnel Investgation of a 0.38-meter (15-IN.) Diameter VTOL Model Lift Fan Installed in a Two-dimensional Wing by : Joseph A. Yuska
Download or read book Fan and Wing Force Data from Wind-tunnel Investgation of a 0.38-meter (15-IN.) Diameter VTOL Model Lift Fan Installed in a Two-dimensional Wing written by Joseph A. Yuska and published by . This book was released on 1972 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Test data are presented for a 38-cm (15-in.) diameter, 1.28 pressure ratio model VTOL lift fan installed in a two-dimensional wing and tested in a 2.74-by 4.58-meter (9-by 15-ft)V/STOL wind tunnel. Tests were run with and without exit louvers over a wide range of crossflow velocities and wing angle of attack. Tests were also performed with annular-inlet vanes, inlet bell-mouth surface disconuities, and fences to induce fan windmilling. Data are presented on the axial force of the fan assembly and overall wing forces and moments as measured on force balances for various static and crossflow test conditions. Midspan wing surface pressure coefficient data are also given.
Book Synopsis Acoustic and Aerodynamic Performance of a 1.5-pressure-ratio, 1.83-meter (6-ft) Diameter Fan Stage for Turbofan Engines (QF-2) by : Richard P. Woodward
Download or read book Acoustic and Aerodynamic Performance of a 1.5-pressure-ratio, 1.83-meter (6-ft) Diameter Fan Stage for Turbofan Engines (QF-2) written by Richard P. Woodward and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The fan was externally driven by an electric motor. Design features for low-noise generation included the elimination of inlet guide vanes, long axial spacing between the rotor and stator blade rows, and the selection of blade-vane numbers to achieve duct-mode cutoff. The fan QF-2 results were compared with those of another full-scale fan having essentially identical aerodynamic design except for nozzle geometry and the direction of rotation. The fan QF-2 aerodynamic results were also compared with those obtained from a 50.8 cm rotor-tip-diameter model of the reverse rotation fan QF-2 design. Differences in nozzle geometry other than exit area significantly affected the comparison of the results of the full-scale fans.
Book Synopsis Aerodynamic and Acoustic Effects of Eliminating Core Swirl from a Full Scale 1.6 Stage Pressure Ratio Fan (QF-5A) by :
Download or read book Aerodynamic and Acoustic Effects of Eliminating Core Swirl from a Full Scale 1.6 Stage Pressure Ratio Fan (QF-5A) written by and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
