Mc Drag A Computer Program For Estimating The Drag Coefficients Of Projectiles
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Mc Drag A Computer Program For Estimating The Drag Coefficients Of Projectiles
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Author : Robert L. McCoy
language : en
Publisher:
Release Date : 1981
Mc Drag A Computer Program For Estimating The Drag Coefficients Of Projectiles written by Robert L. McCoy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Drag (Aerodynamics) categories.
This report presents a FORTRAN program "MC DRAG" for estimating a projectile's zero-yaw drag coefficient from the given values of certain size and shape parameters. The results are valid over a Mach number range of 0.5 to 5 and a projectile diameter range of 4 to 400 millimetres. A user's guide and a FORTRAN listing of MC DRAG is provided. The program is applied to three illustrative examples: (1) an experimental low-drag small arms bullet, the 5. 56mm BRL-1 design; (2) a 55mm scale model of the Minuteman re-entry stage vehicle; (3) the 155mm long-range artillery shell M549. The MC DRAG program estimates drag coefficient to within 3% error at supersonic speeds, 11% error at transonic speeds, and 6% error at subsonic speeds.
Sandrag
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Author : Walter P. Wolfe
language : en
Publisher:
Release Date : 1985
Sandrag written by Walter P. Wolfe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Angle of attack (Aerodynamics). categories.
A design method is presented for calculating the flow field and drag of bodies of revolution at zero angle of attack in incompressible flow. The body pressure distribution, viscous shear stress, and boundary layer separation point are calculated by a combination of potential flow method and boundary layer techniques. The portential solution is obtained by modeling the body with an axial distribution of source/sink elements who strengths very linearly along their length. Both the laminar and turbulent boundary layer solutions use momentum integral techniques which have been modified to account for the effects of surface roughness. An existing technique for estimating the location of transition was also modified to include surface roughness. Empirical correlations are developed to estimate the base pressure coefficient on a wide variety of geometries. Body surface pressure distributions and drag predictions are compared with experimental data for artillery projectiles, conical, and flared bodies. Very good agreement between the present method and experiment is obtained.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1983
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Aeronautics categories.
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date : 1967
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Science categories.
92 4496 To 92 4646
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Author :
language : en
Publisher:
Release Date : 1992
92 4496 To 92 4646 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aerodynamics categories.
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1981
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Science categories.
Government Reports Annual Index
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Author :
language : en
Publisher:
Release Date : 1981
Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Research categories.
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
U S Government Research Reports
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Author :
language : en
Publisher:
Release Date : 1964
U S Government Research Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Science categories.
An Improved Method For Predicting Axial Force At High Angle Of Attack
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Author : Frankie Gale Moore
language : en
Publisher:
Release Date : 1997
An Improved Method For Predicting Axial Force At High Angle Of Attack written by Frankie Gale Moore and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aerodynamic load categories.
Government Reports Announcements
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Author :
language : en
Publisher:
Release Date : 1975-03
Government Reports Announcements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975-03 with Technology categories.