Author: Gene SokolPublisher:
ISBN:
Category : Cylinders
Languages : en
Pages : 22
Book Description
Some Experiments with Liquid-filled, Impulsively Started, Spinning Cylinder
Author: Gene SokolLiquid-filled Projectile Design
Author: Publisher:
ISBN:
Category : Ammunition
Languages : en
Pages : 248
Book Description
" ... deals with the dynamics of liquid-filled projectiles which are known to behave in an unpredictable manner in flight."--Pref.
The Unsteady Flow Within a Spinning Cylinder
Author: E. H. WedemeyerPublisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
A theoretical analysis is given of the unsteady flow within a liquid- filled cylinder of finite length, which is started impulsively to spin about its axis. It is established that a secondary flow, which is caused by the cylinder ends, has a remarkable effect on the generation of spin in the liquid. The theoretical results are compared with experimental observations and good agreement is found.
Scientific and Technical Aerospace Reports
Author: Design for Control of Projectile Flight Characteristics
Author: United States. Army Materiel CommandPublisher:
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.
Applied Mechanics Reviews
Author: AD-
Author: Oscillations of a Liquid in a Rotating Cylinder: Part 2. Spin-up
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 54
Book Description
The unsteady motion of a fluid which fills a cylindrical container in a spinning projectile is considered. The spin is imparted impulsively to the cylinder and spin-up of the fluid is the basic flow which is perturbed to study the waves in the rotating fluid. The core flow is perturbed, not the Ekman layer flow. This is called the spin-up eigenvalue problem which is solved with modal solutions. Viscous perturbations are needed because of the boundary layer and critical layer. A numerical method of solution is given and several results shown. There are two times at which projectile instability might occur. The results of the theory and method are validated by comparison with experimental results.
Journal of Basic Engineering
Author: Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 668
Book Description
Fluid Models in Geophysics
Author: Robert R. LongPublisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 176
Book Description