Reynolds Number Effects on the Drag of Spinning Projectiles in Free Flight
Author : W. R. Witt
Publisher :
Page : 18 pages
File Size : 29,31 MB
Release : 1952
Category :
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Author : W. R. Witt
Publisher :
Page : 18 pages
File Size : 29,31 MB
Release : 1952
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Author : I. M. Nestingen
Publisher :
Page : 18 pages
File Size : 26,32 MB
Release : 1951
Category :
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This report presents the results of a series of shots fired in the NOL pressurized ballistics firing range to determine the effect of Reynolds number on drag of the Angled Arrow Projectile at Mach numbers of 1.86 and 2.87. Drag values were determined for a Reynolds number variation of nine million. The results obtained at M = 1.86 indicate an increase in drag coefficient of approximately 4.55 per cent for a change in Reynolds number from 2,000,000 to 11,000,000. At M - 2.87 an increase in drag coefficient of approximately 20 percent was obtained for a similar variation in Reynolds number. The drag values are in fair agreement with wind-tunnel tests and with the estimated free-flight values of the full-scale missile at high altitude.
Author :
Publisher :
Page : 148 pages
File Size : 48,67 MB
Release : 1966
Category : Ballistics
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Author : United States. Wright Air Development Division
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Page : 1268 pages
File Size : 47,27 MB
Release : 1957
Category : Aeronautics
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Author : G. L. Winchenback
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Page : 54 pages
File Size : 47,63 MB
Release : 1979
Category : Ballistic ranges
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Author : Defense Documentation Center (U.S.)
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Page : 894 pages
File Size : 36,36 MB
Release : 1960
Category : Industrial arts
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Author : United States. Army Materiel Command
Publisher :
Page : 290 pages
File Size : 34,50 MB
Release : 1966
Category : Projectiles, Aerial
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This handbook presents a general survey of the principal factors affecting the flight of projectiles, and describes the methods commonly used for predicting and influencing the flight performance. The coefficients which characterize the aerodynamic forces and moments of a moving body are identified, methods for determining the coefficients applicable to a projectile having a given shape and center of gravity location are described, and the coefficients of a number of projectiles and projectile shapes are given. The use of aerodynamic coefficients in predicting stability, range and accuracy is described. The effects of variations in projectile shape and center of gravity location on range, accuracy and lethality are discussed. Some material on prototype testing and the effects of round-to-round variations in production lots is presented.
Author :
Publisher :
Page : 248 pages
File Size : 46,4 MB
Release : 1969
Category : Ammunition
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" ... deals with the dynamics of liquid-filled projectiles which are known to behave in an unpredictable manner in flight."--Pref.
Author :
Publisher :
Page : 1572 pages
File Size : 23,86 MB
Release : 1992
Category : Aeronautics
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Author : Robert L. Trimpi
Publisher :
Page : 36 pages
File Size : 26,6 MB
Release : 1961
Category : Aerodynamic heating
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