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Sabot Aerodynamics During Discard
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Book Synopsis Sabot Aerodynamics During Discard by : Ivan Stern
Download or read book Sabot Aerodynamics During Discard written by Ivan Stern and published by . This book was released on 1974 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aerodynamics of a generic sabot piece is treated using the Newtonian approximation. The sabot piece is composed of an inner and outer cylindrical surface, conical surfaces on either end, and longitudinal slices parallel to the axis. When assembled, an integral number of such similar pieces form an annular cylinder. A computer program is included which gives the Newtonian lift, drag, and moment coefficients of the piece in terms of the front and rear cone angles, length, ratio of inner to outer radii, and number of pieces. Only pitching motion is treated, and no aerodynamic interference between sabot pieces or projectile is considered. A discussion of a model for sabot discard is given.
Book Synopsis Aerodynamics of Sabot Discard Within a Muzzle Blast Environment by : J. Erdos
Download or read book Aerodynamics of Sabot Discard Within a Muzzle Blast Environment written by J. Erdos and published by . This book was released on 1974 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Sabot Discard Aerodynamics by :
Download or read book Numerical Simulation of Sabot Discard Aerodynamics written by and published by . This book was released on 1993 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational fluid dynamics (CFD) solutions of the three-dimensional Navier-Stokes equations have been applied to sabot discard aerodynamics for gun- launched, saboted, armor-piercing projectiles. The portion of the launch cycle that involves strong aerodynamic interference between the projectile and discarding sabot (carrier) components has been investigated. Three sabot components were location symmetrically at various positions near the projectile and at angle of attack. The complex system of shock/boundary-layer interactions between multiple bodies (projectile and sabots), during the discard sequence, has been numerically simulated. Computed and measured surface pressures compare favorably for Mach number 4.5 and Reynolds number six million per meter. Comparison of symmetric sabot discard trajectories predicted using CFD and the AVCO sabot design code are shown.
Book Synopsis Numerical Simulation of Sabot Discard Aerodynamics Using Computational Fluid Dynamics by : Michael J. Nusca
Download or read book Numerical Simulation of Sabot Discard Aerodynamics Using Computational Fluid Dynamics written by Michael J. Nusca and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational fluid dynamics (CFD) solutions of the three-dimensional Navier-Stokes equations have been applied to sabot discard aerodynamics for gun-launched, saboted, armor-piercing projectiles, The portion of the launch cycle which involves strong aerodynamic interference between the projectile and discarding sabot (carrier) components has been investigated. Three sabot components were located symmetrically at various positions near the projectile and at angle of attack. The complex system of shock/boundary-layer interactions between multiple bodies (projectile and sabots), during the discard sequence, has been numerically simulated. Computed and measured surface pressures compare favorably for Mach number 4.5 and Reynolds number six million per meter. Comparison of symmetric sabot discard trajectories predicted using CFD and the AVCO sabot design code are shown.
Book Synopsis Aerodynamics of Asymmetric Sabot Discard by : Edward M. Schmidt
Download or read book Aerodynamics of Asymmetric Sabot Discard written by Edward M. Schmidt and published by . This book was released on 1983 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results are presented which examine the pressure distributions upon projectiles during the portion of the launch cycle which involves strong aerodynamic interference between the flight body and sabot components. Particular attention is given to the simulation of asymmetric sabot discard geometries since these configurations result in transverse loadings upon the projectile. The pressure distribution in a given section of the projectile surface is shown to be strongly influenced only by the flow field associated with the sabot component facing that section. The basic features of the flow are similar in both the symmetric and asymmetric cases. The experiment is compared with existing analytical models and recommendations for improvements are made.
Book Synopsis Wind Tunnel Measurements of Sabot Discard Aerodynamics by : Edward M. Schmidt
Download or read book Wind Tunnel Measurements of Sabot Discard Aerodynamics written by Edward M. Schmidt and published by . This book was released on 1980 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report addresses the flow field around a fin stabilized, hypervelocity projectile during the sabot discard process. The mutual interference of the flows around the flight body and three sabot components is examined through wind tunnel tests conducted at a free stream Mach number of 4.5. Since it was not practical to attempt the actuation of all three sabot components, the flow field was simulated by using splitter plates to develop reflection surfaces along planes of symmetry. The data show the effects of multiple shock interactions, shock-boundary layer interactions, and the variation in aerodynamic loadings as the sabot discard proceeds. (Author).
Book Synopsis Aerodynamic Interference During Sabot Discard by :
Download or read book Aerodynamic Interference During Sabot Discard written by and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental program has been conducted to investigate disturbances to the trajectories of gun-launched, fin-stabilized projectiles during the sabot discard process. Correlated near muzzle and down range measurements of sabot component and projectile motion are acquired using both orthogonal, flash X-rays and a ballistics range. Apparent anomalous yawing motion of projectiles correlates with asymmetries in the sabot discard geometry. The perturbations to the flow around the projectile due to these asymmetries are calculated and shown to be of sufficient magnitude to produce significant alterations in the desired trajectory. For the rounds tested, the impulse due to aerodynamic interaction during sabot discard is of the same magnitude as the transverse impulse imparted to the projectile during in-bore acceleration.
Book Synopsis Projectile/Sabot Discard Aerodynamics by : David Siegelman
Download or read book Projectile/Sabot Discard Aerodynamics written by David Siegelman and published by . This book was released on 1979 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: An engineering analysis procedure which describes the sabot discard process for gun-launched projectiles has been modified in order to provide an improved tool for investigating the effects of sabot, projectile and launch parameters upon near field dispersive forces. Experimental test data generated by BRL has been used to formulate an improved engineering model of the interaction flow field which develops about the projectile/sabot petal package during the removal process. The experimental data indicated that individual compression wave intersections and reflections are present within the annular flow passage. In order to model this behavior, an integrated flow element approach utilizing local shock/expansion procedures has been evolved. (Author).
Book Synopsis Analysis of Mechanical and Gasdynamic Loadings During Sabot Discard from Gun Launched Projectiles by : Peter Crimi
Download or read book Analysis of Mechanical and Gasdynamic Loadings During Sabot Discard from Gun Launched Projectiles written by Peter Crimi and published by . This book was released on 1977 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Ballistics III by : C. A. Brebbia
Download or read book Computational Ballistics III written by C. A. Brebbia and published by WIT Press. This book was released on 2007 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing the proceedings of the Third International Conference on Computational Ballistics, this book presents new ideas and advanced developments in the field of study of Computational Ballistics. Ballistic studies include applications as varied as the study of the structural and control behavior of rockets and communication satellites; bird strike effects on commercial aircraft, terrorist attacks and automobile crack worthiness modelling. Many basic problems of ballistics are similar to those in other fields of applications, such as combustion, heat conduction, in-flight structural behaviour, trajectory related issues, contact, impact, penetration, structural response to shock waves and many others.A valuable contribution to its field, this text will be of interest to researchers involved in the different areas of computational ballistics and their relationship between computational methods and experiments. Notable topics include: Systems and Technolog; Combustion and Heat Transfer; Propellants; Fluid Dynamics; Fluid Flow and Aerodynamics; In-Flight Structural Behaviour and Material Response; Guidance and Control; Perforation and Penetration Mechanics; Fluid-structure Interaction; Experimental Mechanics/ballistic and Field Testing; High Rate Loads; Composite Material; Shock and Impact.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Energy and Exergy for Sustainable and Clean Environment, Volume 2 by : V. Edwin Geo
Download or read book Energy and Exergy for Sustainable and Clean Environment, Volume 2 written by V. Edwin Geo and published by Springer Nature. This book was released on 2022-09-19 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-disciplinary book presents the most recent advances in exergy, energy, and environmental issues. Volume 2 focuses on fundamentals in the field and covers current problems, future needs, and prospects in the area of energy and environment from researchers worldwide. Based on some selected lectures from the Eleventh International Exergy, Energy and Environmental Symposium (IEEES-11) and complemented by further invited contributions, this comprehensive set of contributions promote the exchange of new ideas and techniques in energy conversion and conservation in order to exchange best practices in "energetic efficiency." Included are fundamental and historical coverage of the green transportation and sustainable mobility sectors, especially regarding the development of sustainable technologies for thermal comforts and green transportation vehicles. Furthermore, contributions on renewable and sustainable energy sources, strategies for energy production, and the carbon-free society constitute an important part of this book.
Book Synopsis Computation of Sabot Discard by : David Siegelman
Download or read book Computation of Sabot Discard written by David Siegelman and published by . This book was released on 1983 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ARL Ballistics Research written by and published by . This book was released on 1993 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ballistics written by Beat P. Kneubuehl and published by Springer Nature. This book was released on 2024 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides comprehensive, practice-oriented coverage of ballistics. It explains the principles and calculation methods for the main four areas of ballistics, regardless of calibre, drawing on numerous facts, observations and examples from the authors decades of experience. Interior ballistics: The characteristics of explosive materials (detonating agents and propellants), methods for calculating gas pressure and the velocity of projectiles and rockets during the acceleration phase, alternative systems for accelerating projectiles and the acceleration of fragments. Intermediate ballistics: The dynamics of the moment at which the projectile leaves the muzzle and propellant gas is ejected from the barrel, effects on the person or structure supporting the weapon and approaches to resolving questions regarding shots from close range in criminology and forensic medicine. Exterior ballistics: The forces acting on a projectile and methods for calculating them, models for calculating trajectories (including the ballistic coefficient), gyroscopic projectile stabilization theory and aerodynamic optimization of projectiles. Terminal ballistics: Empirically-derived facts and data. The principles of ballistic protection design, ballistic testing problems and possible solutions and a comprehensive discussion of ricochets a matter of considerable importance in forensics. The book is intended for ballisticians, military personnel, police officers, criminologists, shooting range specialists, sport shooters, hunters and anyone else with an interest in ballistics. Beat P. Kneubuehl holds a PhD in forensic science and a masters degree in mathematics. For 33 years he was head of the Ballistic Science Unit at the Ballistics, Weapons and Ammunition Test Centre of the Swiss Ministry of Defence. He developed key ballistics software and frequently played a leading role in range tests involving every calibre of munition. He devoted himself to the problems of ballistic protection and the effects of projectiles under the auspices of the European Committee for Standardization and of NATO. After completing a doctorate in forensic science, he added forensic ballistics to his field of activity. His earlier publications include the standard work Wound Ballistics: Basics and Applications (also published by Springer-Verlag).
Book Synopsis Official Gazette of the United States Patent and Trademark Office by :
Download or read book Official Gazette of the United States Patent and Trademark Office written by and published by . This book was released on 1991 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:
