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Book Aerodynamic Characteristics of Towed Spheres Conical Rings and Cones Used as Decelerators at Mach Numbers from 1 57 to 4 65

Download or read book Aerodynamic Characteristics of Towed Spheres Conical Rings and Cones Used as Decelerators at Mach Numbers from 1 57 to 4 65 written by Nickolai Charczenko and published by . This book was released on 1963 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the drag and stability characteristics of the various decelerators when towed in the wake of several space-vehicle configurations at Mach numbers from 1.57 to 4.65. The following parameters were varied: Reynolds number, trailling distance, ratio of deceleration base diameter to space-vehicle base diameter, cone angle, and size of disk added to the base of a cone.

Book Aerondynamic Characteristics of Towed Spheres Conical Rings and Cones Used as Deceleratiors at Mach Numbers from 1 57 to 4 65

Download or read book Aerondynamic Characteristics of Towed Spheres Conical Rings and Cones Used as Deceleratiors at Mach Numbers from 1 57 to 4 65 written by Nickolai Charczenko and published by . This book was released on 1963 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aerodynamic Characteristics of Towed Cones Used as Decelerators at Mach Numbers from 1 57 to 4 65

Download or read book Aerodynamic Characteristics of Towed Cones Used as Decelerators at Mach Numbers from 1 57 to 4 65 written by Nickolai Charczenko and published by . This book was released on 1962 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Towed and sting-supported cones were tested in the wake of various payloads at supersonic speeds to determine their drag and stability characteristics. The investigation extended over a Mach number range from 1.57 to 4.65 and included such variables as Reynolds number, cone angle, ratio of cone base diameter to payload base diameter, and trailing distance. Cones towed in the wake of a symmetrical payload at supersonic speeds, in general, had good drag and stability characteristics if towed in the supersonic flow region. A cone with an included angle between 80 and 90 degrees gave 2 maximum drag while still maintaining stability. In order to minimize wake effects, the ratio of cone base diameter to payload base diameter should be at least one and preferably around three. A trailing distance of three times the payload base diameter, in most cases, is of sufficient length to avoid low drag and instability of the decelerator. (Author).

Book Aerodynamic Characteristics of Towed Cones Used as Decelerators at Mach Numbers from 1 57 to 4 65

Download or read book Aerodynamic Characteristics of Towed Cones Used as Decelerators at Mach Numbers from 1 57 to 4 65 written by Nickolai Charczenko and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Towed and sting-supported cones were tested in the wake of various payloads at supersonic speeds to determine their drag and stability characteristics. The investigation extended over a Mach number range from 1.57 to 4.65 and included such variables as Reynolds number, cone angle, ratio of cone base diameter to payload base diameter, and trailing distance. Cones towed in the wake of a symmetrical payload at supersonic speeds, in general, had good drag and stability characteristics if towed in the supersonic flow region. A cone with an included angle between 80 and 90 degrees gave 2 maximum drag while still maintaining stability. In order to minimize wake effects, the ratio of cone base diameter to payload base diameter should be at least one and preferably around three. A trailing distance of three times the payload base diameter, in most cases, is of sufficient length to avoid low drag and instability of the decelerator. (Author).

Book Aerodynamic Force Characteristics of a Series of Lifting Cone and Cone cylinder Configurations at a Mach Number of 6 83 and Angles of Attack Up to 1300

Download or read book Aerodynamic Force Characteristics of a Series of Lifting Cone and Cone cylinder Configurations at a Mach Number of 6 83 and Angles of Attack Up to 1300 written by Jim A. Penland and published by . This book was released on 1961 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Static Aerodynamic Characteristics of a Short Blunt 10 Degree Semivertex Angle Cone at a Mach Number of 15 in Helium

Download or read book Static Aerodynamic Characteristics of a Short Blunt 10 Degree Semivertex Angle Cone at a Mach Number of 15 in Helium written by Melvin J. Fohrman and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Data on Shape and Location of Detached Shock Waves on Cones and Spheres

Download or read book Data on Shape and Location of Detached Shock Waves on Cones and Spheres written by Juergen W. Heberle and published by . This book was released on 1949 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate experimental data are given on the shape and the location of detached shock waves on cones and spheres at Mach numbers from 1.17 to 1.81. The data are correlated to obtain equations that describe the shock waves. This knowledge of the shock waves should be useful in calculations of the pressure distribution and the pressure drag of the fore part of cones and spheres. The experimental data on shock waves are compared with theory.

Book Aerodynamic Force and Moment Characteristics of Spheres and Cones at Mach 7 0 in Methane air Combustion Products

Download or read book Aerodynamic Force and Moment Characteristics of Spheres and Cones at Mach 7 0 in Methane air Combustion Products written by L. Roane Hunt and published by . This book was released on 1965 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Parachute Recovery Systems

Download or read book Parachute Recovery Systems written by Theo W. Knacke and published by . This book was released on 1992 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide recovery system engineers in government and industry with tools to evaluate, analyze, select, and design parachute recovery systems. These systems range from simple, one-parachute assemblies to multiple-parachute systems, and may include equipment for impact attenuation, flotation, location, retrieval, and disposition. All system aspects are discussed, including the need for parachute recovery, the selection of the most suitable recovery system concept, concept analysis, parachute performance, force and stress analysis, material selection, parachute assembly and component design, and manufacturing. Experienced recovery system engineers will find this publication useful as a technical reference book; recent college graduates will find it useful as a textbook for learning about parachutes and parachute recovery systems; and technicians with extensive practical experience will find it useful as an engineering textbook that includes a chapter on parachute- related aerodynamics. In this manual, emphasis is placed on aiding government employees in evaluating and supervising the design and application of parachute systems. The parachute recovery system uses aerodynamic drag to decelerate people and equipment moving in air from a higher velocity to a lower velocity and to a safe landing. This lower velocity is known as rate of descent, landing velocity, or impact velocity, and is determined by the following requirements: (1) landing personnel uninjured and ready for action, (2) landing equipment and air vehicles undamaged and ready for use or refurbishment, and (3) impacting ordnance at a preselected angle and velocity.

Book Facing the Heat Barrier

Download or read book Facing the Heat Barrier written by T.A. Heppenheimer and published by Courier Dover Publications. This book was released on 2018-09-12 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume from The NASA History Series presents an overview of the science of hypersonics, the study of flight at speeds at which the physics of flows is dominated by aerodynamic heating. The survey begins during the years immediately following World War II, with the first steps in hypersonic research: the development of missile nose cones and the X-15; the earliest concepts of hypersonic propulsion; and the origin of the scramjet engine. Next, it addresses the re-entry problem, which came to the forefront during the mid-1950s, showing how work in this area supported the manned space program and contributed to the development of the orbital shuttle. Subsequent chapters explore the fading of scramjet studies and the rise of the National Aerospace Plane (NASP) program of 1985–95, which sought to lay groundwork for single-stage vehicles. The program's ultimate shortcomings — in terms of aerodynamics, propulsion, and materials — are discussed, and the book concludes with a look at hypersonics in the post-NASP era, including the development of the X-33 and X-34 launch vehicles, further uses for scramjets, and advances in fluid mechanics. Clearly, ongoing research in hypersonics has yet to reach its full potential, and readers with an interest in aeronautics and astronautics will find this book a fascinating exploration of the field's history and future.