Some Aerodynamic Effects of Varying the Body Length and Head Length of a Spinning Projectile PDF Download
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Author: Elizabeth R. Dickinson Publisher: ISBN: Category : Projectiles, Aerial Languages : en Pages : 30
Book Description
Experimental results are presented on the effect, at supersonic velocities, on the drag coefficient, overturning moment coefficient, normal force coefficient and center of pressure, of varying the head length and body length of spinning projectiles. (Author).
Author: Elizabeth R. Dickinson Publisher: ISBN: Category : Projectiles, Aerial Languages : en Pages : 30
Book Description
Experimental results are presented on the effect, at supersonic velocities, on the drag coefficient, overturning moment coefficient, normal force coefficient and center of pressure, of varying the head length and body length of spinning projectiles. (Author).
Author: United States. Army Materiel Command Publisher: ISBN: Category : Projectiles, Aerial Languages : en Pages : 290
Book Description
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: Robert L. McCoy Publisher: ISBN: Category : Aerodynamics, Supersonic Languages : en Pages : 82
Book Description
A simplified flow field solution has been programmed in an attempt to improve the accuracy of estimates of the static aerodynamic characteristics of ordnance projectiles. It provides estimates of drag, normal force, static moment, and roll damping moment for pointed bodies of revolution at supersonic speed. The program combines the Van Dyke hybrid theory for potential flow, the Van Driest compressible turbulent boundary layer theory, and the Chapman-Sternberg model for supersonic base pressure. Good agreement is demonstrated between the theoretical and experimental data.
Author: Colin White Publisher: Routledge ISBN: 1134027621 Category : Education Languages : en Pages : 352
Book Description
How can we predict the trajectory of a baseball from bat to outfield? How do the dimples in a golf ball influence its flight from tee to pin? What forces determine the path of a soccer ball steered over a defensive wall by an elite player? An understanding of the physical processes involved in throwing, hitting, firing and releasing sporting projectiles is essential for a full understanding of the science that underpins sport. This is the first book to comprehensively examine those processes and to explain the factors governing the trajectories of sporting projectiles once they are set in motion. From a serve in tennis to the flight of a ’human projectile’ over a high jump bar, this book explains the universal physical and mathematical principles governing movement in sport, and then shows how those principles are applied in specific sporting contexts. Divided into two sections, addressing theory and application respectively, the book explores key concepts such as: friction, spin, drag, impact and bounce computer and mathematical modelling variable sensitivity the design of sports equipment materials science. Richly illustrated throughout, and containing a wealth of research data as well as worked equations and examples, this book is essential reading for all serious students of sports biomechanics, sports engineering, sports technology, sports equipment design and sports performance analysis.
Author: Elizabeth R. Dickinson
Author: Elizabeth R. Dickinson
Author: United States. Army Materiel Command
Author: Robert L. McCoy
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Author: 
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Author: Colin White
Author: United States. Army. Ordnance Corps