The 2009 Version Of The Aeroprediction Code The Ap09 PDF Download
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| Author | : |
| Publisher | : |
| Total Pages | : 135 |
| Release | : 2008 |
| Genre | : |
| ISBN | : |
Download The 2009 Version of the Aeroprediction Code: The AP09 Book in PDF, ePub and Kindle
The AP05 code was evaluated when applied to configurations with boattails. Results of the evaluation indicated the AP05 predictions for normal force, center of pressure, pitch and roll damping moments needed improvement. As a result new and improved methods were developed and incorporated into the AP05 to be released as the AP09. Improvements include body alone lift characteristics for Mach numbers less than 2, low angle of attack improvements for roll and pitch damping for configurations with long boattails, incorporation of an improved boundary layer displacement model and refinement of several other existing methods. In addition, new methods were developed to predict nonlinear roll and pitch damping. Comparing the new and improved methods to existing experimental data indicated significant improvements in roll and pitch damping, normal force and center of pressure predictions compared to the AP05. However, validation of the AP09 code was not as complete as desired due to limited generic nonlinear roll and pitch damping data. Also, most of the available nonlinear dynamic derivative data has larger than desired accuracy boundaries due to model sting and wind tunnel wall interference issues. Weapons affected most by the new AP09 methodology are mortars, low drag bombs and projectiles in that order. However, the nonlinear dynamic derivative predictions affect all weapons. The AP09 is thus the most accurate and robust of the Aeroprediction Codes to date.
| Author | : Eugene L. Fleeman |
| Publisher | : AIAA (American Institute of Aeronautics & Astronautics) |
| Total Pages | : 530 |
| Release | : 2006 |
| Genre | : Technology & Engineering |
| ISBN | : |
Download Tactical Missile Design Book in PDF, ePub and Kindle
This textbook will provide a basis for including tactical missile design as part of the aerospace engineering curriculum, providing new graduates with the knowledge they will need in their careers.
| Author | : Stefan Hiermaier |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 463 |
| Release | : 2009-07-09 |
| Genre | : Science |
| ISBN | : 1441907270 |
Download Predictive Modeling of Dynamic Processes Book in PDF, ePub and Kindle
Predictive Modeling of Dynamic Processes provides an overview of hydrocode technology, applicable to a variety of industries and areas of engineering design. Covering automotive crash, blast impact, and hypervelocity impact phenomena, this volume offers readers an in-depth explanation of the fundamental code components. Chapters include informative introductions to each topic, and explain the specific requirements pertaining to each predictive hydrocode. Successfully blending crash simulation, hydrocode technology and impact engineering, this volume fills a gap in the current competing literature available.
| Author | : James H. Vincent |
| Publisher | : John Wiley & Sons |
| Total Pages | : 636 |
| Release | : 2007-04-04 |
| Genre | : Science |
| ISBN | : 0470060220 |
Download Aerosol Sampling Book in PDF, ePub and Kindle
This book provides a comprehensive account of the important field of aerosol sampling as it is applied to the measurement of aerosols that are ubiquitous in occupational and living environments, both indoor and outdoor. It is written in four parts: Part A contains 9 chapters that describe the current knowledge of the physical science that underpins the process of aerosol sampling. Part B contains 4 chapters, which present the basis of standards for aerosols, including the link with human exposure by inhalation. Part C contains 7 chapters that cover the development of practical aerosol sampling instrumentation, and how technical designs and methods have evolved over the years in order that aerosol sampling may be carried out in a manner matching the health-related and other criteria that have been proposed as parts of standards. Finally Part D contains 6 chapters that describe how a wide range of aerosol sampling instruments have performed when they have been applied in the field in both occupational and ambient atmospheric environments, including how different instruments, nominally intended to measure the same aerosol fraction, compare when used side-by-side in the real world. The book draws together all that is known about aerosol sampling, for the benefit of researchers and practitioners in occupational and environmental health and all other fields of science and engineering where aerosols are of interest.
| Author | : Peter H. Zipfel |
| Publisher | : AIAA |
| Total Pages | : 586 |
| Release | : 2000 |
| Genre | : Computers |
| ISBN | : 9781563474569 |
Download Modeling and Simulation of Aerospace Vehicle Dynamics Book in PDF, ePub and Kindle
A textbook for an advanced undergraduate course in which Zipfel (aerospace engineering, U. of Florida) introduces the fundamentals of an approach to, or step in, design that has become a field in and of itself. The first part assumes an introductory course in dynamics, and the second some specialized knowledge in subsystem technologies. Practicing engineers in the aerospace industry, he suggests, should be able to cover the material without a tutor. Rather than include a disk, he has made supplementary material available on the Internet. Annotation copyrighted by Book News, Inc., Portland, OR
| Author | : Jochen Wild |
| Publisher | : CRC Press |
| Total Pages | : 372 |
| Release | : 2022-02-03 |
| Genre | : Technology & Engineering |
| ISBN | : 1000532623 |
Download High-Lift Aerodynamics Book in PDF, ePub and Kindle
This book presents a detailed look at high-lift aerodynamics, which deals with the aerodynamic behavior of lift augmentation means from various approaches. After an introductory chapter, the book discusses the physical limits of lift generation, giving the lift generation potential. It then explains what is needed for an aircraft to fly safely by analyzing the high-lift-related requirements for certifying an aircraft. Aircraft needs are also analyzed to improve performance during takeoff, approach, and landing. The book discusses in detail the applied means to increase the lift coefficient by either passive and active high-lift systems. It includes slotless and slotted high-lift flaps, active and passive vortex generating devices, boundary and circulation control, and powered lift. Describing methods that are used to evaluate and design high-lift systems in an aerodynamic sense, the book briefly covers numerical as well as experimental simulation methods. It also includes a chapter on the aerodynamic design of high-lift systems. FEATURES Provides an understanding of the physics of flight during takeoff and landing from aerodynamics to flight performance and from simulation to design Discusses the physical limits of lift generation, giving the lift generation potential Concentrates on the specifics of high-lift aerodynamics to provide a first insight Analyzes aircraft needs to improve performance during takeoff, approach, and landing Focuses on civil transport aircraft applications but also includes the associated physics that apply to all aircraft This book is intended for graduate students in aerospace programs studying advanced aerodynamics and aircraft design. It also serves as a professional reference for practicing aerospace and mechanical engineers who are working on aircraft design issues related to takeoff and landing.
| Author | : Naval Surface Weapons Center |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1979 |
| Genre | : Naval research |
| ISBN | : |
Download NSWC TR. Book in PDF, ePub and Kindle
| Author | : Frank G. Moore |
| Publisher | : |
| Total Pages | : 72 |
| Release | : 2001-05-01 |
| Genre | : |
| ISBN | : 9781423550907 |
Download Improved Power-on, Base Drag Methodology for the Aeroprediction Code Book in PDF, ePub and Kindle
Improved methods for base pressure prediction under base bleed and rocket motor-on conditions have been developed. The base bleed method makes several refinements to the method developed by Danberg at the Army Research Laboratory in Aberdeen, Maryland. The improved rocket motor-on, base pressure prediction improves upon the method developed at the Army Missile Command in Huntsville, Alabama by Brazzel and some of his colleagues. The major refinement to the base bleed method of Danberg was to estimate the power-off value of base pressure empirically based on an extensive data base, as opposed to using computational fluid dynamics codes to predict this term. The major modifications to the power-on base pressure prediction method of Brazzel was to extend its range of applicability to high values of thrust coefficient, to Mach numbers less than 1.5, and to different afterbody shapes. In comparing the improved methods for power-on base drag prediction to experiment, it was seen that both methods gave reasonable agreement to most experimental data bases. However, more validation is needed, particularly for the combined effects of angle of attack, fins, and power-on conditions.
| Author | : Frankie Gale Moore |
| Publisher | : |
| Total Pages | : 148 |
| Release | : 1997 |
| Genre | : Aerodynamics |
| ISBN | : |
Download An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies Book in PDF, ePub and Kindle
| Author | : Frankie Gale Moore |
| Publisher | : |
| Total Pages | : 130 |
| Release | : 1999-12-01 |
| Genre | : Aerodynamics |
| ISBN | : 9781423541493 |
Download Refinements in the Aeroprediction Code Based on Recent Wind Tunnel Data Book in PDF, ePub and Kindle
The 1998 (AP98) and prior versions of the aeroprediction code are based primarily on slender body and perturbation theories at low angle of attack and empirical constants that represent the nonlinear aerodynamics as a function of angle of attack, Mach number, aspect and taper ratio, and other missile geometric parameters. The primary data base upon which these empirical nonlinear constants were derived was based on the NASA/Tri-Service component data base taken in the 1970s. This data base was limited in body radius to wing semispan plus body radius ratios (r/s) of 0.5. A more recent data base taken by NASA and the former McDonnell Douglas Corporation, investigated other values of the parameter r/s of 0.25, 0.33 and 0.5. As a result of this new data base, the empirical constants in the AP98 were fine-tuned. This fine-tuning has shown the average normal force coefficient errors to be reduced by anywhere from 10 percent to over 40 percent on various missile configurations. The largest reductions in error were for configurations where the AP98 average accuracy was the worst. These new improved empirical constants will be a part of the next planned release of the aeroprediction code in 2002 (AP02). The AP98 average error on normal force coefficient of +/- 10 percent will therefore be somewhat better for the AP02.
