Effects Of Reynolds Number And Flow Incidence On The Force Characteristics Of A Family Of Flat Front Cylinders PDF Download
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Author | : Vernard E. Lockwood |
Publisher | : |
Total Pages | : 50 |
Release | : 1967 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Effects of Reynolds Number and Flow Incidence on the Force Characteristics of a Family of Flat-front Cylinders Book in PDF, ePub and Kindle
Author | : Vernard E. Lockwood |
Publisher | : |
Total Pages | : 41 |
Release | : 1967 |
Genre | : |
ISBN | : |
Download Effects of Reynolds Number and Flow Incidence on the Force Characteristics of a Family of Flat-front Cylinders Book in PDF, ePub and Kindle
Author | : Edward Charles Polhamus |
Publisher | : |
Total Pages | : 32 |
Release | : 1959 |
Genre | : Cylinders |
ISBN | : |
Download Effect of Flow Incidence and Reynolds Number on Low-speed Aerodynamic Characteristics of Several Noncircular Cylinders with Applications to Directional Stability and Spinning Book in PDF, ePub and Kindle
Author | : Edward Charles Polhamus |
Publisher | : |
Total Pages | : 48 |
Release | : 1959 |
Genre | : Aeronautics |
ISBN | : |
Download Pressure and Force Characteristics of Noncircular Cylinders as Affected by Reynolds Number with a Method Included for Determining the Potential Flow about Arbitrary Shapes Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 470 |
Release | : 1977 |
Genre | : Aerodynamics |
ISBN | : |
Download NASA Technical Report Book in PDF, ePub and Kindle
Author | : John C. Wilson |
Publisher | : |
Total Pages | : 80 |
Release | : 1986 |
Genre | : |
ISBN | : |
Download Aerodynamic Characteristics of Several Current Helicopter Tail Boom Cross Sections Including the Effect of Spoilers Book in PDF, ePub and Kindle
Aerodynamic characteristics were determined of three cylindrical shapes representative of tail boom cross sections of the AH-64, UH-60, and UH-1H helicopters. Forces and pressures were measured in a wind-tunnel investigation. Data was obtained for a flow incidence range from -45 to 90 deg and a dynamic pressure range from 1.5 to 50 psf. These ranges provided data representative of full-scale Reynolds numbers and the full range of flow incidence to which these helicopter tail boom shapes would be subjected at low flight speeds. The effects of protuberances such as tail rotor drive-shaft covers and spoilers were evaluated. The data indicate that significant side loads on tail booms of helicopters can be generated and that the addition of spoilers can beneficially alter the side loads. Although an increase in vertical drag occurs, the net effect through reduction of tail rotor thrust required can be an improvement in helicopter performance. Keywords: Rotorcraft; Aerodynamics; Stability and control; Helicopters; Tail booms.
Author | : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division |
Publisher | : |
Total Pages | : 436 |
Release | : 1968 |
Genre | : Aeronautics |
ISBN | : |
Download A Selected Listing of NASA Scientific and Technical Reports Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1062 |
Release | : 1967 |
Genre | : Government publications |
ISBN | : |
Download Government-wide Index to Federal Research & Development Reports Book in PDF, ePub and Kindle
Author | : United States. National Aeronautics and Space Administration Scientific and Technical Information Division |
Publisher | : |
Total Pages | : 448 |
Release | : 1968 |
Genre | : Aeronautics |
ISBN | : |
Download NASA Scientific and Technical Reports Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 478 |
Release | : 1973 |
Genre | : Aeronautics |
ISBN | : |
Download NASA Technical Note Book in PDF, ePub and Kindle