The viscous optimal shape design, via spectral solutions

✍ Scribed by Adriana Nastase

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 219 KB
• Volume: 30
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/(sici)1097-0363(19990530)30:2<137::aid-fld825>3.0.co;2-u

✦ Synopsis

The shape of a flying configuration is globally optimized if its camber, twist, thickness and the similarity parameters of its planform are determined in order to obtain a minimum drag at cruising Mach number. The optimum-optimorum (OO) theory of the author solves this problem by using a lower limit hyper-surface for the drag functional. A multipoint design is realized by using movable leading edge flaps. The iterative OO theory is used for the computation of the friction drag, for the determination of the viscosity effect in the optimal shape of the flying configuration and to perform the multidisciplinary design by including structure and thermal auxiliary conditions. A proposal of a fully-optimized shape of supersonic transport aircraft with twin integrated fuselages is also made.