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An Improved Semiempirical Method For Calculating Aerodynamics Of Missiles With Noncircular Bodies
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Book Synopsis An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies by : Frankie Gale Moore
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:
Book Synopsis An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies by : Frank G. Moore
Download or read book An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies written by Frank G. Moore and published by . This book was released on 1997-09-01 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved method has been developed to compute aerodynamics of noncircular cross section shapes. The improved method is based on extending current state of the art methods for computing aerodynamics of noncircular wing- body shapes based on circular wing-body methods. Specific additions to the state of the art methods presently in use include extensions to a broader class of cross section bodies and to a higher angle of attack (AOA); extensions to allow improved accuracy at low cross flow Mach number and to allow body cross section shape to impact the critical cross flow Reynolds number; and a method to treat wing-body interference factor corrections as a function of body geometry, Mach number, and AOA. The new methods were applied to a broad class of noncircular body alone and wing body configurations for which wind tunnel data were available. In general, results for normal force, axial force and center of pressure were quite good over the Mach number and AOA range where data was available. This included Mach numbers as low as 0.3 and as high as 14 and AOAs to 60 degrees.
Book Synopsis An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies by :
Download or read book An Improved Semiempirical Method for Calculating Aerodynamics of Missiles with Noncircular Bodies written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved method has been developed to compute aerodynamics of noncircular cross section shapes. The improved method is based on extending current state of the art methods for computing aerodynamics of noncircular wing-body shapes based on circular wing-body methods. Specific additions to the state of the art methods presently in use include extensions to a broader class of cross section bodies and to a higher angle of attack (AOA); extensions to allow improved accuracy at low cross flow Mach number and to allow body cross section shape to impact the critical cross flow Reynolds number; and a method to treat wing-body interference factor corrections as a function of body geometry, Mach number, and AOA. The new methods were applied to a broad class of noncircular body alone and wing body configurations for which wind tunnel data were available. In general, results for normal force, axial force and center of pressure were quite good over the Mach number and AOA range where data was available. This included Mach numbers as low as 0.3 and as high as 14 and AOAs to 60 degrees.
Book Synopsis The 2002 Version of the Aeroprediction Code by : Frankie Gale Moore
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.
Book Synopsis Technical Digest by : Naval Surface Warfare Center (U.S.). Dahlgren Division
Download or read book Technical Digest written by Naval Surface Warfare Center (U.S.). Dahlgren Division and published by . This book was released on 1998 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Frankie Gale Moore Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :488 pages Book Rating :4.3/5 (91 download)
Book Synopsis Approximate Methods for Weapon Aerodynamics by : Frankie Gale Moore
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.
Book Synopsis State-of-the-art Engineering Aeroprediction Methods with Emphasis on New Semiempirical Techniques for Predicting Nonlinear Aerodynamics on Complete Missile Configurations by : Frankie Gale Moore
Download or read book State-of-the-art Engineering Aeroprediction Methods with Emphasis on New Semiempirical Techniques for Predicting Nonlinear Aerodynamics on Complete Missile Configurations written by Frankie Gale Moore and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the pros and cons of numerical, semiempirical and empirical aeroprediction codes and lists many state-of-the-art codes in use today. It then summarizes many of the more popular approximate analytical methods used in State-of-the-Art (SOTA) semiempirical aeroprediction codes. It also summarizes some recent new nonlinear semiempirical methods that allow more accurate calculation of static aerodynamics on complete missile configurations to higher angles of attack. Results of static aerodynamic calculations on complete missile configurations compared to wind tunnel data are shown for several configurations at various flight conditions. Calculations show the new nonlinear methods being far superior to some of the former linear technology when used at angles of attack greater than about 15 degrees. Aeroprediction codes, Nonlinear semiempirical methods, State-of-the-Art (SOTA) semiempirical aeroprediction codes, Static aerodynamic calculations.
Book Synopsis International Conference of Computational Methods in Sciences and Engineering (ICCMSE 2004) by : Theodore Simos
Download or read book International Conference of Computational Methods in Sciences and Engineering (ICCMSE 2004) written by Theodore Simos and published by CRC Press. This book was released on 2019-04-29 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference of Computational Methods in Sciences and Engineering (ICCMSE) is unique in its kind. It regroups original contributions from all fields of the traditional Sciences, Mathematics, Physics, Chemistry, Biology, Medicine and all branches of Engineering. The aim of the conference is to bring together computational scientists from several disciplines in order to share methods and ideas. More than 370 extended abstracts have been submitted for consideration for presentation in ICCMSE 2004. From these, 289 extended abstracts have been selected after international peer review by at least two independent reviewers.
Book Synopsis Aerodynamic Configured Missile Development by : Robert J. Krieger
Download or read book Aerodynamic Configured Missile Development written by Robert J. Krieger and published by . This book was released on 1980 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a program that investigated aerodynamic configuring as a method of improving long range supersonic cruise and maneuvering missile performance. Non-circular body, lifting body, blended wing body, wing-body and favorable interference concepts were developed and wind tunnel tested. Substantial improvements in cruise range were shown to result from aero configuring.
Book Synopsis Aerodynamic Configured Missile Development by : Robert J. Krieger
Download or read book Aerodynamic Configured Missile Development written by Robert J. Krieger and published by . This book was released on 1980 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a program that investigated aerodynamic configuring as a method of improving long range supersonic cruise and maneuvering missile performance. Non-circular body, lifting body, blended wing body, wing-body and favorable interference concepts were developed and wind tunnel tested. Substantial improvements in cruise range were shown to result from aero configuring.
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 1991 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1991 with total page 1530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development Feasibility of Missile Datcom by : Steven R. Vukelich
Download or read book Development Feasibility of Missile Datcom written by Steven R. Vukelich and published by . This book was released on 1981 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the methods available to predict the aerodynamic static, dynamic, and control characteristics of missiles. The methods selected for Missile Datcom development were based upon a criteria which included ease of use, accuracy, utility over a range of flight conditions and cost effective in their use. This report describes the methodology appropriate for the missile designer. An outline of a Missile Datcom handbook is proposed; an automated version is also recommended for development. Those areas presently lacking suitable methodologies are also highlighted. (Author).
Book Synopsis Aerodynamics of Missiles and Rockets by : Mark Pinney
Download or read book Aerodynamics of Missiles and Rockets written by Mark Pinney and published by McGraw-Hill Professional. This book was released on 2013-12-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proven techniques for deriving the basic aerodynamic properties of axisymmetric-shaped bodies with the minimum amount of time and effort Aerodynamics of Missiles and Rockets describes the basic aerodynamics model used in the widespread Analytical Initial Missile Synthesis (AIMS) computer code for symmetric missile and rocket sizing and design. It is a collection of empirical, semi-empirical and theoretical aerodynamics engineering methods for a component build-up approach to aerodynamics prediction. This book serves as an on-the-job application manual and desk reference for the prediction of basic aerodynamics. It can also be used for courses in applied aerodynamics in Mechanical and Aerospace Engineering programs and for short courses in industry and government. This practical guide provides an alternative approach to utilizing numerous, complex, stand-alone computer codes, but is also a good complement to these codes. The book offers insight into the methods and techniques used to derive answers and correct magnitudes generated by code, giving confidence in final results. Features a Microsoft Excel file that automates calculations and provides complete tabulated output for missile and rocket geometry and design, and design and for rapid assessments of aerodynamic properties based on changes in geometry or flight conditions On-the-job application manual and desk reference for the prediction of basic aerodynamics Combination of long-standing, empirical and semi-empirical techniques with classical aerodynamic theory A component build-up approach utilized, with body and wing/tail surface aerodynamics determined separately and then combined for total configuration zero-lift drag, lift, center of pressure location, and pitching moment
Book Synopsis State-of-the-art Engineering Aeroprediction Methods with Emphasis on New Semiempirical Techniques for Predicting Nonlinear Aerodynamics on Complete Missile Configurations by : Frank G. Moore
Download or read book State-of-the-art Engineering Aeroprediction Methods with Emphasis on New Semiempirical Techniques for Predicting Nonlinear Aerodynamics on Complete Missile Configurations written by Frank G. Moore and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the pros and cons of numerical, semiempirical and empirical aeroprediction codes and lists many state-of-the-art codes in use today. It then summarizes many of the more popular approximate analytical methods used in State-of-the-Art (SOTA) semiempirical aeroprediction codes. It also summarizes some recent new nonlinear semiempirical methods that allow more accurate calculation of static aerodynamics on complete missile configurations to higher angles of attack. Results of static aerodynamic calculations on complete missile configurations compared to wind tunnel data are shown for several configurations at various flight conditions. Calculations show the new nonlinear methods being far superior to some of the former linear technology when used at angles of attack greater than about 15 degrees. Aeroprediction codes, Nonlinear semiempirical methods, State-of-the-Art (SOTA) semiempirical aeroprediction codes, Static aerodynamic calculations.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781731539311 Total Pages :174 pages Book Rating :4.5/5 (393 download)
Book Synopsis Improvements to the Missile Aerodynamic Prediction Code Demon3 by : National Aeronautics and Space Adm Nasa
Download or read book Improvements to the Missile Aerodynamic Prediction Code Demon3 written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-22 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computer program DEMON3 was developed for the aerodynamic analysis of nonconventional supersonic configurations comprising a body with noncircular cross section and up to two wing or fin sections. Within a wing or fin section, the lifting surfaces may be cruciform, triform, planar, or low profile layouts; the planforms of the lifting surfaces allow for breaks in sweep. The body and fin sections are modeled by triplet and constant u-velocity panels, respectively, accounting for mutual body-fin interference. Fin thickness effects are included for the use of supersonic planar source panels. One of the unique features of DEMON3 is the modeling of high angle of attack vortical effects associated with the lifting surfaces and the body. In addition, shock expansion and Newtonian pressure calculation methods can be optionally engaged. These two dimensional nonlinear methods are augmented by aerodynamic interference determined from the linear panel methods. Depending on the geometric details of the body, the DEMON3 program can be used to analyze nonconventional configurations at angles of attack up to 25 degrees for Mach numbers from 1.1 to 6. Calculative results and comparisons with experimental data demonstrate the capabilities of DEMON3. Limitations and deficiencies are listed. Dillenius, Marnix F. E. and Johnson, David L. and Lesieutre, Daniel J. AERODYNAMIC CHARACTERISTICS; AERODYNAMICS; BODY-WING AND TAIL CONFIGURATIONS; COMPUTER PROGRAMS; DESIGN ANALYSIS; FINS; MISSILE DESIGN; MISSILES; PANEL METHOD (FLUID DYNAMICS); WINGS; AERODYNAMIC INTERFERENCE; ANGLE OF ATTACK; LAYOUTS; NEWTON METHODS; NONLINEARITY; PLANFORMS; THICKNESS; TRANSONIC SPEED...
Book Synopsis The 1995 Version of the NSWC Aeroprediction Code by : Frankie Gale Moore
Download or read book The 1995 Version of the NSWC Aeroprediction Code written by Frankie Gale Moore and published by . This book was released on 1995 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NSWC Aeroprediction Code has been extended to angles of attack (AOA) greater than 30 deg. To accomplish this, several data bases were used to approximate the nonlinearities in individual missile component aerodynamics. Theoretical aerodynamic methods are used at small AOA. The new semiempirical model was applied to several configurations and the empirical constants adjusted to eliminate some of the errors associated with wind tunnel measurements of individual missile component loads. The new version of the code (AP95) was then pplied to several other missile configurations and estimates compared to data and other aerodynamic code calculations. Comparisons were made for Mach numbers 0.1 to 10.0 and AOA of 0 to 90 deg (not all data were available on any single configuration). In general, average accuracy levels of ±10 percent could be obrained for axial and normal force coefficeint and ±4 percent of body length for center of pressure, using the AP95. An exception to this was at AOA above 30 deg and at high supersonic Mach numbers, where nonlinearities caused by internal shock interactions were not accounted for. While these accuracy levels are very encouraging for a semiempirical code, improvements in the AP95 methodology could be made by additional missile-component wind-tunnel data at high AOA.
