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Estimation of aerodynamic forces and moments on a steadily spinning airplane
Journal of Aircraft, 1984A semiempirical method is presented for the estimation of aerodynamic forces and moments on a steadily rotating airplane model in a spin tunnel. The approach is based on the application of strip theory to determine a part of the aerodynamic coefficient (including rotational velocity) and then estimation of increments to these coefficients because of ...
PAMADI, BN, TAYLOR, LW
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A study of spin effects on tennis ball aerodynamics
Due to complex surface structure, the aerodynamic behaviour of a tennis ball is significantly different compared to other sports balls. This difference is more obvious when spin is involved. Although several studies have been conducted on drag and lift in steady state condition (no spin involved) by the authors and others, little or no studies have ...Alam, Firoz +4 more
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Aerodynamics of a Spinning Cylinder in Rarefied Gas Flows
Journal of Spacecraft and Rockets, 1999Fig. 3 Variation of wnorm with jointe exibility parameter A Fj for a)root impulse and b ) tip impulse. disturbance structurally more critical than a control impulse of the same magnitude. Conclusions The present study has investigated the problem of the elastic response ofa genericspacevehiclewithdegradedjoints.Thesteppedbeamformulation ...
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Spinning symmetric missiles in a nonlinear aerodynamic field
1964The case of a spinning symmetric body flying at a constant speed where the aerodynamic restoring moment is an arbitrary function of the angle of attack is examined. The analysis is twofold: first, the general problem is discussed, in suitable nondimensional form, to establish the generalized stability boundaries and, second, the attention is directed ...
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Aerodynamic Characteristics of Fighter Configurations During Spin Entries and Developed Spins
Journal of Aircraft, 1978The NASA Langley Research Center is currently conducting a stall/spin research program to define fighter aerodynamics applicable during spin entries and developed spins and to develop analytical methods to use such measured aerodynamics for theoretically calculating these spin motions.
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Aerodynamic coefficients of a spinning sphere in a rarefied-gas flow
Fluid Dynamics, 2009A three-dimensional rarefied-gas flow past a spinning sphere in the transitional and near-continuum flow regimes is studied numerically. The rarefaction and compressibility effects on the lateral (Magnus) force and the aerodynamic torque exerted on the sphere are investigated for the first time. The coefficients of the drag force, the Magnus force, and
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Aerodynamic development of a spinning submunition dispenser [PDF]
10th Atmospheric Flight Mechanics Conference, 1983 openaire +1 more source
Unsteady aerodynamics in airplane stall-spin departure [PDF]
31st Aerospace Sciences Meeting, 1993 Donald Romani, Andrew Craig
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Aerodynamic characteristics of hypersonic spin stabilized projectiles [PDF]
20th Aerospace Sciences Meeting, 1982 R. Watt, J. Milton, D. Daniel
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