Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 317
Get Book Here
Book Description
RArefaction waVE guN (RAVEN) propulsion constitutes a novel means to dramatically reduce the recoil momentum and heat imparted to future cannons during firing. The method may be considered a hybrid propulsion technology with features common to both closed-breech cannons and recoilless rifles. Reduction of recoil and gun heating would greatly facilitate large caliber gun integration within light future combat system (FCS) vehicles. Analysis of a RAVEN launcher comparable to the current 120-mm M256 firing an M829 kinetic energy round would impose 75% less recoil momentum and reduce barrel heating at the muzzle by 50%.
Author: E. Kathe
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Get Book Here
Book Description
Rarefaction wave gun (RAVEN) propulsion has renewed interest in the fundamental limits of recoil reduction attainable by redirecting propellant gases rearward from a gun without compromising the projectile propulsion. Traditionally, this has only been achievable through the use of muzzle brakes. RAVEN's unique ability tap into the internal energy of propellant gases that are not gainfully employed to propel the projectile may be considered analogous to efforts to mechanically close the muzzle of a gun at shot exit to drive all of the propellant gases through a muzzle brake. The recoil reduction potential for RAVEN and current technology muzzle brakes will be extrapolated across viable gas gun velocities using simple empirical relationships. The quantitative findings of this parametric study must be considered to provide perspective as opposed to true predictions because of the extrapolated nature of the study; particularly at higher muzzle velocities.
Author: S. Dunn
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Get Book Here
Book Description
The recently proposed light Future Combat System (FCS) vehicles require a highly lethal cannon with greatly reduced recoil momentum. A novel approach to this problem was proposed by Kathe, which utilizes a RArefaction waVE guN (RAVEN) propulsion system to significantly reduce the recoil momentum and barrel heating. To accurately assess the effectiveness of this approach, a Navier-Stokes flow solver was developed to calculate the internal ballistics of this unconventional hybrid propulsion system. The results of the internal ballistics analysis for the current 120 mm M256 firing an M829A2 Kinetic energy round indicated that the proposed system could theoretically reduce the recoil momentum by 75% and reduce the barrel heating by 50%'.
Author: Ludwig Stiefel
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
ISBN:
Category : Crafts & Hobbies
Languages : en
Pages : 600
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Thermodynamics
Languages : en
Pages : 646
Get Book Here
Book Description
Author: Sheng Yi Li
Publisher: Trans Tech Publications Ltd
ISBN: 3038133868
Category : Technology & Engineering
Languages : en
Pages : 2086
Get Book Here
Book Description
This special collection of 390 peer-reviewed papers was contributed to by researchers from various disciplines: Mechanical Engineering Design, Green Manufacturing Technology, Applied Mechanics, Sustainable Materials, etc.
Author: George Emanuel
Publisher: CRC Press
ISBN: 1420036599
Category : Science
Languages : en
Pages : 805
Get Book Here
Book Description
The second edition of Analytical Fluid Dynamics presents an expanded and updated treatment of inviscid and laminar viscous compressible flows from a theoretical viewpoint. It emphasizes basic assumptions, the physical aspects of flow, and the appropriate formulations of the governing equations for subsequent analytical treatment. Topics covered inc
Author: George Emanuel
Publisher: CRC Press
ISBN: 1351374591
Category : Technology & Engineering
Languages : en
Pages : 651
Get Book Here
Book Description
New Edition Now Covers Shock-Wave Analysis An in-depth presentation of analytical methods and physical foundations, Analytical Fluid Dynamics, Third Edition breaks down the "how" and "why" of fluid dynamics. While continuing to cover the most fundamental topics in fluid mechanics, this latest work emphasizes advanced analytical approaches to aid in the analytical process and corresponding physical interpretation. It also addresses the need for a more flexible mathematical language (utilizing vector and tensor analysis and transformation theory) to cover the growing complexity of fluid dynamics. Revised and updated, the text centers on shock-wave structure, shock-wave derivatives, and shock-produced vorticity; supersonic diffusers; thrust and lift from an asymmetric nozzle; and outlines operator methods and laminar boundary-layer theory. In addition, the discussion introduces pertinent assumptions, reasons for studying a particular topic, background discussion, illustrative examples, and numerous end-of-chapter problems. Utilizing a wide variety of topics on inviscid and viscous fluid dynamics, the author covers material that includes: Viscous dissipation The second law of thermodynamics Calorically imperfect gas flows Aerodynamic sweep Shock-wave interference Unsteady one-dimensional flow Internal ballistics Force and momentum balance The Substitution Principle Rarefaction shock waves A comprehensive treatment of flow property derivatives just downstream of an unsteady three-dimensional shock Shock-generated vorticity Triple points An extended version of the Navier‒Stokes equations Shock-free supersonic diffusers Lift and thrust from an asymmetric nozzle Analytical Fluid Dynamics, Third Edition outlines the basics of analytical fluid mechanics while emphasizing analytical approaches to fluid dynamics. Covering the material in-depth, this book provides an authoritative interpretation of formulations and procedures in analytical fluid dynamics, and offers analytical solutions to fluid dynamic problems.
Author: Tom Proulx
Publisher: Springer Science & Business Media
ISBN: 1441982280
Category : Technology & Engineering
Languages : en
Pages : 455
Get Book Here
Book Description
Dynamic Behavior of Materials, Volume 1: Proceedings of the 2010 Annual Conference on Experimental and Applied Mechanics, the first volume of six from the Conference, brings together 71 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Materials Science, including papers on Composite Materials, Dynamic Failure and Fracture, Dynamic Materials Response, Novel Testing Techniques, Low Impedance Materials, Metallic Materials, Response of Brittle Materials, Time Dependent Materials, High Strain Rate Testing of Biological and Soft Materials, Shock and High Pressure Response, Energetic Materials, Optical Techniques for Imaging High Strain Rate Material Response, and Modeling of Dynamic Response.
Author:
Publisher:
ISBN:
Category : Ballistics
Languages : en
Pages : 878
Get Book Here
Book Description
