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A low-speed aerodynamic model for harmonically oscillating aircraft configurations

Published online by Cambridge University Press:  04 July 2016

N. Singh
Affiliation:
Indian Institute of Technology, Kharagpur, India
S. Bhattacharya
Affiliation:
Indian Institute of Technology, Kharagpur, India

Summary

An economical numerical method has been developed to calculate unsteady aerodynamic characteristics of aircraft configurations, undergoing small amplitude simple harmonic motion in various laterally symmetric modes of oscillation, in inviscid incompressible flow, by taking advantage of the computational efficiency of internal distribution of singularities. The only approximation introduced in the method is the linearisation of the problem with respect to the amplitude of oscillation. A number of comparisons have been made to demonstrate the effects of different aircraft components on wing or tail pressure, and lift distributions.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1992 

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References

1 Aibano, E. and Rodden, W.P. A doublet lattice method for calculating lift distribution on oscillating surfaces in subsonic flows, AIAA J, February 1969, 7, (21), pp 279–285.Google Scholar
2 Jones, W.P. and Moore, J.A. Simplified aerodynamic theory of oscillating thin surface in Subsonic Flow, AIAA J, September 1973 11, (9), pp 1305–1309.Google Scholar
3 Hancock, G.J. Unsteady flow about aircraft, Proceedings of Computational Methods and Problems in Aeronautical Fluid Dynamics Conference, University of Manchester, September 1974, pp 214–241.Google Scholar
4 Geissler, W. Nonlinear unsteady potential flow calculations for three-dimensional oscillatory wings, AIAA J, November 1978 16, (11), 1978Google Scholar
5 Kalman, T.P., Rodden, W.P. and Giesing, J.P. Application of the doublet lattice method to nonplanar configuration in subsonic flow, J Aircraft, June 1971, 8, (6), pp 406413.Google Scholar
6 Roos, R., Bennekers, B. and Zwaan, R. J. A. Calculation Method for Unsteady Subsonic Flow About Harmonically Oscillating Wing-body Configurations, AIAA paper 75-864 1975.Google Scholar
7 Marino, L. and Ruo, C.C. Subsonic potential aerodynamics for complex configurations: a general theory, AIAA J, November 1978 16,(11).Google Scholar
8 Singh, N., Aikat, S. and Basu, B. C. Potential flow calculation for three-dimensional wings and wing-body combination in oscillatory motion, AIAA J, 1989, 27, (12).Google Scholar
9 Singh, N., Bandyopadhyay, G. and Basu, B.C. Calculation of potential flow about arbitrary three-dimensional wings using internal singularity distributions, Aeronaut Q, August 1983, pp 197–211.Google Scholar
10 Korner, H. and Schroder, W. Druckverteilungs und kraftmessungen an einer flugel-rumpf-leitwerk-anordnung, Braunschweig, November 1972, IB080-72/13.Google Scholar