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STABILITY AND ACCURACY OF NUMERICAL BOUNDARY CONDITIONS IN AEROELASTIC ANALYSIS

✍ Scribed by M. B. Giles

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
210 KB
Volume
24
Category
Article
ISSN
0271-2091

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✦ Synopsis

This paper analyses the accuracy and numerical stability of coupling procedures in aeroelastic modelling. A twodimensional model problem assuming unsteady inviscid flow past an oscillating wall leads to an even simpler one-dimensional model problem. Analysis of different numerical algorithms shows that in general the coupling procedures are numerically stable, but care is required to achieve accuracy when using very few time steps per period of natural oscillation of the structure. The relevance of the analysis to fully three-dimensional applications is discussed.

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