New Methods For Predicting Nonlinear Lift Center Of Pressure And Pitching Moment On Middile Configurations PDF Download
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Author | : Frankie Gale Moore |
Publisher | : |
Total Pages | : 192 |
Release | : 1992 |
Genre | : Angle of attack (Aerodynamics). |
ISBN | : |
Download New Methods for Predicting Nonlinear Lift, Center of Pressure, and Pitching Moment on Middile Configurations Book in PDF, ePub and Kindle
A new semiempirical method has been developed to predict normal force, pitching moment, and center of pressure on missile configurations up to angles of attack of 30° The method is based on linear theory and slender body techniques at low angle of attack and uses wind tunnel data to derive nonlinear angle-of-attack corrections as angle of attack increaces. The new improved theories include body alone, wing alone, and body-wing and wing-body interference. While the new theory is databased, simple analytical formulas are derived that allow general use of the techniques. Comparison with the linearized approaches used in the former NSWCDD aeroprediction code shows singificant reductions in errors of aerodynamics above 5° to 10° angle of attack. Limited comparisons to other state-of-the-art engineering codes show the new theory to be as good as or better than anything known to be available for computing planar aerodynamics up to 30° angle of attack.
Author | : Frankie Gale Moore |
Publisher | : |
Total Pages | : 174 |
Release | : 1993 |
Genre | : Aerodynamics |
ISBN | : |
Download State-of-the-art Engineering Aeroprediction Methods with Emphasis on New Semiempirical Techniques for Predicting Nonlinear Aerodynamics on Complete Missile Configurations Book in PDF, ePub and Kindle
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 | : |
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Total Pages | : 652 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Total Pages | : 22 |
Release | : 1986 |
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Download Prediction of Wing Aeroelastic Effects on Aircraft Lift and Pitching Moment Characteristics Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 682 |
Release | : 1989 |
Genre | : Mechanics, Applied |
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Download Applied Mechanics Reviews Book in PDF, ePub and Kindle
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Total Pages | : 26 |
Release | : 1983 |
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Download Convergence Characteristics of Nonlinear Vortex-lattice Methods for Configuration Aerodynamics Book in PDF, ePub and Kindle
Author | : David W. Taylor Model Basin |
Publisher | : |
Total Pages | : 58 |
Release | : 1966 |
Genre | : Shipbuilding |
ISBN | : |
Download Report - David W. Taylor Model Basin Book in PDF, ePub and Kindle
Author | : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development |
Publisher | : |
Total Pages | : 446 |
Release | : 1980 |
Genre | : Aeronautics |
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Download Advisory Group for Aerospace Research and Development Index of Publications Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 716 |
Release | : 1972 |
Genre | : Aeronautics |
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Download A Collection of Technical Papers Book in PDF, ePub and Kindle
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Total Pages | : 38 |
Release | : 1985 |
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Download Evaluation of an Aerodynamic-load Prediction Method on a STOL Fighter Configuration Book in PDF, ePub and Kindle