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Recent advances in lifting surfacemethods

Published online by Cambridge University Press:  04 July 2016

D. D. Liu,
P. C. Chen,
Z. X. Yao and
D. Sarhaddi
D. D. Liu
Affiliation:
Department of Mechanical and Aerospace Engineering , Arizona Stale University , Tempe, Arizona , USA
P. C. Chen
Affiliation:
ZONA Technology , Mesa, Arizona , USA
Z. X. Yao
Affiliation:
ZONA Technology , Mesa, Arizona , USA
D. Sarhaddi
Affiliation:
ZONA Technology , Mesa, Arizona , USA
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Abstract

Recent advances in two lifting surface methods arereported. The present subsonic constant pressuremethod improves upon the program robustness of thedoublet lattice method. The present unifiedsupersonic-hypersonic method extends the range ofapplicability of lifting surface theory to theNewtonian limit. Based on a uniformly-valid seriesformulation, the method accurately approximates thenon-linear thickness effect, whereas this effect isneglected by the linear theory and overestimated bypiston theory. In fact, the present resultsgenerally agree well with the trends of severalEuler solutions. Among other findings, casescomputed by the unified method confirm that theeffect of thickness is to reduce the supersonicflutter speed.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 100 , Issue 998 , October 1996, pp. 327 - 340
Copyright
Copyright © Royal Aeronautical Society 1996 

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Footnotes

†

Professor, mechanical & aerospaceengineering

‡

vice president

*

Member of technical staff

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