Download or read book Approximate Methods for Weapon Aerodynamics written by Frankie Gale Moore and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2000 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Moore brings 30 years of experience in weapons development to help bridge the gap between the academic textbook and practical application. The book reviews all approaches to calculate aerodynamics, allowing engineers to see the pros and cons of each approach, setting the stage for a semiempirical approach. It contains many approximate aerodynamic methods, bringing together in a single text both linearized and nonlinear aerodynamic methods. Practicing engineers will value the books emphasis on understanding the physics involved, understanding the assumptions made to get to the approximate approaches, and showing final equations used in the solution process.

Download or read book APPROXIMATE METHODS FOR WEAPON AERODYNAMICS written by FRANK G. MOORE and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Semi empirical Method for Predicting Multi fin Weapon Aerodynamics written by F. G. Moore and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reduced order Modelling for High speed Aerial Weapon Aerodynamics written by Michael Mifsud and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work a high-fidelity low-cost surrogate of a computational fluid dynamicsanalysis tool was developed. This computational tool is composed of general and physics-based approximation methods by which three dimensional high-speed aerodynamic flow-field predictions are made with high efficiency and an accuracy which is comparable withthat of CFD. The tool makes use of reduced-basis methods that are suitable for bothlinear and non-linear problems, whereby the basis vectors are computed via the properorthogonal decomposition (POD) of a training dataset or a set of observations. The surrogate model was applied to two flow problems related to high-speed weaponaerodynamics. Comparisons of surrogate model predictions with high-fidelity CFDsimulations suggest that POD-based reduced-order modelling together with responsesurface methods provide a reliable and robust approach for efficient and accuratepredictions. In contrast to the many modelling efforts reported in the literature, thissurrogate model provides access to information about the whole flow-field. In an attempt to reduce the up-front cost necessary to generate the training datasetfrom which the surrogate model is subsequently developed, a variable-fidelity POD-based reduced-order modelling method is proposed in this work for the first time. In thismodel, the scalar coefficients which are obtained by projecting the solution vectors ontothe basis vectors, are mapped between spaces of low and high fidelities, to achieve high-fidelity predictions with complete flow-field information. In general, this technique offers an automatic way of fusing variable-fidelity data through interpolation and extrapolationschemes together with reduced-order modelling (ROM). Furthermore, a study was undertaken to investigate the possibility of modelling thetransonic flow over an aerofoil using a kernel POD?based reduced-order modellingmethod. By using this type of ROM it was noticed that the weak non-linear features ofthe transonic flow are accurately modelled using a small number of basis vectors. Thestrong non-linear features are only modelled accurately by using a large number of basisvectors.

Download or read book An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies written by Frankie Gale Moore and published by . This book was released on 1997 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Missile Aerodynamics written by and published by . This book was released on 1974 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The 2002 Version of the Aeroprediction Code written by Frankie Gale Moore and published by . This book was released on 2002 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new version of the aeroprediction code (APC), the AP02, has been developed to address the requirements arising from advanced weapon concepts. The AP02 was formed by adding significant new technology and several productivity improvements to the previous version of the APC, the AP98. New technology added included 6 and 8 fin aerodynamics, improved nonlinear aerodynamics, improved pitch damping predictions, improved power-on base drag estimates, base-bleed effect on base drag estimation, improved axial force of nonaxisymmetric bodies and trailing-edge flap capability. Other improvements and productivity enhancements include an aerodynamic smoother, ballistic and three degree-of-freedom simulation modules as well as refinements for the pre- and post-processor for inputs and outputs of the AP02. Comparison of the predicted aerodynamics of the AP02 to AP98 and experimental data showed the AP02 to be slightly better than the AP98 in most cases that both codes would handle. However, due to the additional new technology incorporated into the AP02, many new options are available in the AP02 that are not available in the AP98. Therefore, the AP02 is more robust and, on average, is slightly more accurate than the AP98 in predicting aerodynamics of weapons.

Download or read book Aerodynamic Design Manual for Tactical Weapons written by Lawrence Mason and published by . This book was released on 1981 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1981 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Simplified Method for Predicting Aerodynamics of Multi Fin Weapons written by Frank G. Moore and published by . This book was released on 1999-03-01 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new semiempirical method was developed to compute aerodynamics of multi-fin missile configurations using cruciform missile aerodynamics as a baseline. The method was developed using full Euler Computational Fluid Dynamics codes to compare computations with wind tunnel data bases for cruciform missiles as a function of Mach number, angle of attack, and aspect ratio. The Euler codes were then used for the same free stream conditions and missile configurations except the number of fins were increased from four to six and eight respectively. A table of coefficients was then formed for the aerodynamics of six- and eight-fin configurations compared to that of four-fin cases for use in the aeroprediction code or other semiempirical codes. It was concluded that this approach worked well except for subsonic Mach numbers at moderate to large angles of attack, where the Euler codes failed to predict the leeward plane flow field adequately. It is believed that full Navier-Stokes solutions could be used to improve upon this semiempirical model. Engineering judgement, in conjunction with low angle-of-attack Euler solutions were used in the regions where Euler solutions were suspect. In comparing the new semiempirical method to a limited amount of wind tunnel data on several configurations, it was concluded that the model worked well at all the conditions where data was available. However, additional wind tunnel data at higher angles of attack on six- and eight-fin configurations is needed before the method can be truly validated.

Download or read book Aerodynamics of Tactical Weapons to Mach Number 8 and Angle of Attack 180 written by Leroy Devan and published by . This book was released on 1980 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book One Approximate Method for Calculating the Aerodynamic Characteristics of Smooth Bodies Streamlined at Different Angles of Attack by a Supersonic Flow of Gas written by V. F. Syagaev and published by . This book was released on 1975 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approximation method of equivalent cones is examined for the calculation of the aerodynamic characteristics of smooth bodies in a supersonic flow of gas.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerodynamics of Tactical Weapons to Mach Number 8 and Angle of Attack 180 written by Leroy Devan and published by . This book was released on 1981 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Weapon Aerodynamics Overview written by D. N. Foster and published by . This book was released on 1989 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this memorandum is to highlight the problems currently facing the weapon aerodynamicist; the origins of these problems, and the methods available to predict and to solve the problems.

Download or read book Weapon Aerodynamics written by and published by . This book was released on 1988-01-01 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Air and Missile Defense Systems Engineering written by Warren J. Boord and published by CRC Press. This book was released on 2016-04-06 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air and Missile Defense Systems Engineering fills a need for those seeking insight into the design procedures of the air and missile defense system engineering process. Specifically aimed at policy planners, engineers, researchers, and consultants, it presents a balanced approach to negating a target in both natural and electronic attack environmen