Effects of Spanwise Blowing on the Surface Pressure Distributions and Vortex-lift Characteristics of a Trapezoidal Wing-strake Configuration

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Total Pages : 76 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Effects of Spanwise Blowing on the Surface Pressure Distributions and Vortex-lift Characteristics of a Trapezoidal Wing-strake Configuration by : James Franklin Campbell

Download or read book Effects of Spanwise Blowing on the Surface Pressure Distributions and Vortex-lift Characteristics of a Trapezoidal Wing-strake Configuration written by James Franklin Campbell and published by . This book was released on 1979 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Paper

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ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis NASA Technical Paper by : United States. National Aeronautics and Space Administration

Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1979 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Paper

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ISBN 13 :
Total Pages : 814 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Paper by :

Download or read book NASA Technical Paper written by and published by . This book was released on 1978 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Innovation in Flight

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ISBN 13 :
Total Pages : 406 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Innovation in Flight by : Joseph R. Chambers

Download or read book Innovation in Flight written by Joseph R. Chambers and published by . This book was released on 2005 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Scientific and Technical Publications

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ISBN 13 :
Total Pages : 410 pages
Book Rating : 4.F/5 ( download)

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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:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1000 pages
Book Rating : 4.3/5 (126 download)

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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 1979-04 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aeronautical Engineering

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ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Aeronautical Engineering by :

Download or read book Aeronautical Engineering written by and published by . This book was released on 1992 with total page 268 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).

NASA SP.

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ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis NASA SP. by :

Download or read book NASA SP. written by and published by . This book was released on 1962 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 1044 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1979 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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ISBN 13 :
Total Pages : 946 pages
Book Rating : 4.3/5 (91 download)

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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 1979 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 810 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1994 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Engineering Index Annual

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ISBN 13 :
Total Pages : 2282 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis The Engineering Index Annual by :

Download or read book The Engineering Index Annual written by and published by . This book was released on 1988 with total page 2282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.

Three Dimensional Aerodynamics of a Simple Wing in Oscillation Including Effects of Vortex Generators

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (558 download)

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Book Synopsis Three Dimensional Aerodynamics of a Simple Wing in Oscillation Including Effects of Vortex Generators by : Jolanta M. Janiszewska

Download or read book Three Dimensional Aerodynamics of a Simple Wing in Oscillation Including Effects of Vortex Generators written by Jolanta M. Janiszewska and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A comprehensive experimental program has been conducted on a LS(1)-0421MOD airfoil model in the 3'x5' OSU subsonic wind tunnel. Surface pressure distributions were obtained for 2D baseline and 3D configurations under clean and surface grit conditions. Several vortex generator configurations were evaluated. The data were taken for steady state and unsteady conditions. The steady state data included angles of attack from 0 to 30 degrees and Reynolds numbers of 1.0 million. The unsteady conditions were simulated using a face cam that provided a sinusoidal angle of attack variation with 10 degrees amplitude for three frequencies of 0.6 and 1.8 Hz at mean angles of attack of 8, 14 and 20 degrees. Surface pressure data were obtained from six spanwise stations, which were integrated to local coefficients. The maximum 2D lift coefficient obtained for the 1.0 million Reynolds number was 1.58 at 14.4 degrees angle of attack. For the 3D case the maximum lift coefficient at the wall was 1.58 at 19.5 degrees and at the tip was 1.20 at 18.3 degrees. The results showed that the application of the grit roughness reduces the maximum lift coefficients in all configurations by as much as 50%. The Flat and Curled vortex generators increased the maximum lift coefficient for both the 3D tip and wall stations, up to 1.6 and 1.92, respectively. The application of the vortex generators shifted the stall angle of attack by approximately 30%. A gritted model with the vortex generators saw an increase in both the maximum lift and stall angle of attack by approximately 25% in comparison to grit only. The unsteady maximum lift coefficients were always higher than those for the steady state up to 60% and showed, generally, large hysteresis loops. The hysteresis loops were smaller for the 3D wing configuration due to the tip vortex influence, therefore smallest hysteresis loops occurred at the tip. The Flat and Curled vortex generators removed the hysteresis loops for all frequencies at 14 degrees mean angle and significantly reduced the minimum value of the pitching moment and the pressure drag at stall.

Effects of Spanwise Nozzle Geometry and Location on the Longitudinal Aerodynamic Characteristics of a Vectored-engine-over-wing Configuration at Subsonic Speeds

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ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Effects of Spanwise Nozzle Geometry and Location on the Longitudinal Aerodynamic Characteristics of a Vectored-engine-over-wing Configuration at Subsonic Speeds by : Laurence D. Leavitt

Download or read book Effects of Spanwise Nozzle Geometry and Location on the Longitudinal Aerodynamic Characteristics of a Vectored-engine-over-wing Configuration at Subsonic Speeds written by Laurence D. Leavitt and published by . This book was released on 1978 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: A V/STOL tunnel study was performed to determine the effects of spanwise blowing on longitudinal aerodynamic characteristics of a model using a vectored-over-wing powered lift concept. The effects of spanwise nozzle throat area, internal and external nozzle geometry, and vertical and axial location were investigated. These effects were studied at a Mach number of 0.186 over an angle-of-attack range from 14 deg to 40 deg. A high pressure air system was used to provide jet-exhaust simulation. Engine nozzle pressure ratio was varied from 1.0 (jet off) to approximately 3.75.

Lift Generation on a Circular Cylinder by Tangential Blowing from Surface Slots

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Lift Generation on a Circular Cylinder by Tangential Blowing from Surface Slots by : Vernard E. Lockwood

Download or read book Lift Generation on a Circular Cylinder by Tangential Blowing from Surface Slots written by Vernard E. Lockwood and published by . This book was released on 1960 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Analysis of Estimated and Experimental Transonic Downwash Characteristics as Affected by Plan Form and Thickness for Wing and Wing-fuselage Configurations

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ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis An Analysis of Estimated and Experimental Transonic Downwash Characteristics as Affected by Plan Form and Thickness for Wing and Wing-fuselage Configurations by : Joseph Weil

Download or read book An Analysis of Estimated and Experimental Transonic Downwash Characteristics as Affected by Plan Form and Thickness for Wing and Wing-fuselage Configurations written by Joseph Weil and published by . This book was released on 1952 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of a transonic research program the sensitivity of downwash at the tail plane to fairly systematic changes in wing plan form and thickness has been evaluated over a Mach number range of approximately 0.6 to 1.1, utilizing the transonic-bump technique. This paper presents a summary of information obtained from 11 transonic-bump investigations of wing and wing-fuselage configurations and compares the experimental results with theoretical estimations made for subsonic and supersonic Mach numbers.

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

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ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (31 download)

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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.