Download or read book Supersonic Wind Tunnel Magnus Measurements of the 7 8 9 and 10 caliber Army Navy Spinner Projectile written by John E. Holmes and published by . This book was released on 1968 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army-Navy Spinner Projectile is a research shape that has been used as the foundation of many spin stabilized weapon designs. The purpose of the wind tunnel tests was to make supersonic wind tunnel Magnus measurements on AN Spinner configurations of 7-, 8-, 9- and 10-caliber lengths. Such an experimental study indicates the effect of length on the Magnus force and moment for a basic spin stabilized shape. (Author).
Download or read book Supersonic Wind Tunnel Magnus Measurements of the 7 8 9 and 10 Caliber Army Navy Spinner Projectile written by John E. Holmes and published by . This book was released on 1968 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army-Navy Spinner Projectile is a research shape that has been used as the foundation of many spin stabilized weapon designs. The purpose of the wind tunnel tests was to make supersonic wind tunnel Magnus measurements on AN Spinner configurations of 7-, 8-, 9- and 10-caliber lengths. Such an experimental study indicates the effect of length on the Magnus force and moment for a basic spin stabilized shape. (Author).
Download or read book Supersonic Magnus Measurements of the 10 Caliber Army Navy Spinner Projectile with Wrap around Fins written by Frank J. Regan and published by . This book was released on 1970 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: A research configuration was formed by attaching wraparound fins in a cruciform arrangement to a 10-caliber Army-Navy spinner projectile. This configuration was tested in a supersonic tunnel to get the Magnus force and moment, as well as the normal force and pitching moment. Model spin rate was generated by means of fin cant.
Download or read book A Magnus Theory for Bodies of Revolution written by H. R. Vaughn and published by . This book was released on 1973 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis is presented for predicting Magnus force and moment coefficients for spinning ogive cylinder, cone cylinder, and conical bodies with laminar, transitional and turbulent boundary layers. The results compare favorably with experimental data.
Download or read book The Effect of Base Bleed on the Drag and Magnus Characteristics of a Rotating Body of Revolution written by Frank J. Regan and published by . This book was released on 1972 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Base bleed is a technique whereby all or part of the boundary layer is 'bled' from the rear portion of a projectile to the base region. Passage from the model's surface to the base region is by means of concentric cylindrical passageways. The purpose of base bleed is to reduce the Magnus moment on overlong spinning bodies of revolution and to reduce the base drag. Both analytic and experimental results are presented. The boundary layer is represented by means of the momentum thickness.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnus Characteristics of Arbitrary Rotating Bodies written by I. D. Jacobson and published by . This book was released on 1973 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report reviews both theoretical and experimental investigations of the Magnus effect on arbitrary bodies of revolution. The main emphasis is on spinning projectiles at angle of attack, both with and without fins. Flow visualization measurements are used to assess the accuracy of the existing theories. Laminar, turbulent, and mixed boundary layers are considered. (Author).
Download or read book Wrap around fin WAF Pressure Distribution written by John E. Holmes and published by . This book was released on 1973 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal difference between a wrap around fin and a planar fin is that the WAF exhibits an induced rolling moment at zero degree angle of attack, while a straight fin has none. The Naval Ordnance Laboratory, along with other members of The Technical Cooperation Program, initiated a joint investigation into the causes of the induced roll moment. Measurements of the pressure distribution over both the convex and concave sides of a WAF showed that the primary difference in pressure across the fin occurred immediately behind the leading edge with the pressure on the convex side apparently being affected more by the curvature than that on the concave side. In general, for a WAF with fixed curvature, it appeared that the physical characteristic which would have the most effect on changing the roll moment would be the fin cross-sectional profile, especially the leading-edge profile. (Author).
Download or read book Collection of Technical Papers on Atmospheric Flight Mechanics written by and published by . This book was released on 1974 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Techniques for Measurement of Dynamic Stability Derivatives in Ground Test Facilities written by Clarence John Schueler and published by . This book was released on 1967 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some of the techniques in current use for measuring dynamic stability derivatives in wind tunnels are described, with emphasis given to the important features of balance system design, data reduction methods, instrumentation and typical balance systems. The use of gas bearings for dynamic stability and roll damping balances is treated and a three-degree-of-freedom balance system employing a spherical gas bearing is described. (Author).
Download or read book Supersonic Wind Tunnel Measurements of Static and Magnus Aerodynamic Coefficients for Projectile Shapes with Tangent and Secant Ogive Noses written by Charles John Nietubicz and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind tunnel tests have been conducted for a series of projectile configurations. The shapes tested include a three caliber secant ogive nose and three caliber tangent ogive nose configuration. The overall model length was fixed at 6 calibers for all configurations tested. Static and Magnus aerodynamic coefficient data were obtained at Mach numbers 2.0, 3.0 and 4.0 for angles of attack up to 10.0 deg. The data are presented in graphical form along with tabulations of the summary data. The tangent ogive nose produced a slight increase in the Magnus moment coefficient when compared to similar secant ogive configurations. The boattail configuration, when compared to the cylinder shapes, was found to increase the Magnus moment; however, this effect was shown to decrease with increasing Mach number.
Download or read book The Effect of Conical Boattails on the Magnus Characteristics of Projectiles at Subsonic and Transonic Speeds written by George I. T. Nielsen and published by . This book was released on 1974 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind tunnel tests were conducted on the Army-Navy Spinner Rocket at subsonic and transonic speeds to determine the influence of boattail configuration on the aerodynamic characteristics of projectile shapes. The boattail configurations consisted of a square base, 1/2- and 1-caliber, 7 degree conical boattails, and an in-caliber fin boattail. Data were obtained on the 5- and 7- caliber configurations at Mach 0.26 and from Mach 0.8 to 1.02. Data were also obtained on the 4- and 6-caliber models at Mach 0.26.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1970 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Supersonic Aerodynamics written by R. J. Volluz and published by . This book was released on 1961 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supersonic tunnel Tests of Projectiles in Germany and Italy written by Antonio Ferri and published by . This book was released on 1945 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: Tests were performed in the Göttingen (Germany) and Guidonia (Italy) supersonic tunnels in order to determine the aerodynamic characteristics of projectiles of various shapes. The Mach numbers ranged from about 1.3 to 3.2 for the Göttingen tests and from 1.44 to 2.66 for the Guidonia tests. The results show that increasing the relative length of the nose causes the drag coefficient to decrease and the center of pressure to move forward. For a given length, the nose having minimum drag has a curved profile; the curvature is greatest at the tip and decreases to a very small value toward the rear of the nose, where the shape becomes approximately conical. As the Mach number increases, the drag coefficient decreases and the center of pressure moves toward the tail. For the higher Mach numbers the variation of the drag coefficient and the movement of the center of pressure are small. Existing aerodynamic theory gives values of the aerodynamic characteristics close to those determined experimentally for small flow deviations.
Download or read book Three component Measurements on Projectile R 100 BS in the Supersonic Wind Tunnel written by E. Weber and published by . This book was released on 1946 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ames M 50 Helium Tunnel written by Joseph H. Kemp (Jr.) and published by . This book was released on 1970 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
