An approximate method for pitch-damping prediction /

A simple method of estimating the pitch-damping coefficients for axisymmetric flight bodies has been developed. The method is suitable for preliminary design and parametric studies. The procedure is based on concepts from slender body theory, but the method significantly improves the accuracy of the...

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Bibliographic Details
Main Author:	Danberg, James E.
Corporate Author:	U.S. Army Research Laboratory
Other Authors:	Weinacht, P.
Format:	Government Document eBook
Language:	English
Published:	Aberdeen Proving Ground, MD : Army Research Laboratory, [2003]
Series:	ARL-TR (Aberdeen Proving Ground, Md.) ; 3007.
Subjects:	Axial flow. Angle of attack (Aerodynamics) Flight control. Mechanics. Ammunition and Explosives. Pitch(inclination) Damping. Computational fluid dynamics. Data bases. Aerodynamic configurations. Flight testing. Parametric analysis. Slender bodies. Predictions. Validation. Projectiles. Theory. Accuracy. Correlation. Coefficients. Length. Axisymmetric. Mach number. Noses. Functions(mathematics)
Online Access:	https://purl.fdlp.gov/GPO/gpo1394

Description
Summary:	A simple method of estimating the pitch-damping coefficients for axisymmetric flight bodies has been developed. The method is suitable for preliminary design and parametric studies. The procedure is based on concepts from slender body theory, but the method significantly improves the accuracy of the results through the use of correlation functions. To derive the correlation functions, extensive use of a recently developed and validated computational fluid dynamics (CFD) method for predicting the pitch-damping coefficients has been employed. The CFD method provides important details necessary to derive the correlation functions that are unavailable from the current experimental database. The method has been validated for a variety of nose geometries, body lengths, and Mach numbers using both experimental and computationally generated databases.
Item Description:	Title from title screen (viewed Nov. 26, 2010). "July 2003." The original document contains color images. All DTIC reproductions will be in black and white. Electronic resource.
Physical Description:	1 online resource (1 volume (various pagings)) : digital, PDF file.
Bibliography:	Includes bibliographical references (pages 32-33).
Access:	APPROVED FOR PUBLIC RELEASE.