UNSTEADY AERODYNAMIC FORCES ON A SLENDER BODY OF REVOLUTION IN SUPERSONIC FLOW

Linearized slender-body theory is applied to the computation of aerodynamic forces on an oscillating, or deforming, body in supersonic flow. The undeformed body is a body of revolution and the deformed body is represented by movement of a line through the centers of the cross sections which are assu...

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Bibliographic Details
Main Authors: BOND,REUBEN, PACKARD,BARBARA B
Format: Report
Language:English
Subjects:
AERODYNAMIC CHARACTERISTICS
BESSEL FUNCTIONS
BODIES OF REVOLUTION
CONTROL
CYLINDRICAL BODIES
DEFORMATION
DIFFERENTIAL EQUATIONS
DRAG
EQUATIONS
INTEGRAL TRANSFORMS
LIFT
LOAD DISTRIBUTION
MATHEMATICAL ANALYSIS
MOMENTS
OSCILLATION
PARABOLIC BODIES
STABILITY
STRESSES
SUPERSONIC FLOW
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Summary:Linearized slender-body theory is applied to the computation of aerodynamic forces on an oscillating, or deforming, body in supersonic flow. The undeformed body is a body of revolution and the deformed body is represented by movement of a line through the centers of the cross sections which are assumed to remain circular. The time dependence is based on sinusoidal motion. For a body of vanishing thickness the slender-body theory yields the apparent mass approximation as it is obtained for incompressible crossflow around a cylinder. Both linearized slender-body theory and the apparent mass approximation are used to calculate the pitching-moment coefficients on a rigid slender body with a parabolic arc nose cone, and these coefficients are compared with some experimental results. (Author)