Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Novel uncertainty propagation method for robust aerodynamic design
AU - Padulo, Mattia
AU - Campobasso, Sergio
AU - Guenov, Marin
PY - 2011/3
Y1 - 2011/3
N2 - Starting from a comparative study of various methods for uncertainty propagation, this paper presents a novel reduced quadrature technique to be used in gradient-based robust design optimization of aerodynamic shapes. The accuracy and computational efficiency of the method are investigated by means of mathematical analyses and numerical examples. The method is then applied to the robust design of airfoils under probabilistic uncertainty. It is shown that the solutions obtained through the proposed method can outperform those obtained through linearization, without any significant increase in computational cost.
AB - Starting from a comparative study of various methods for uncertainty propagation, this paper presents a novel reduced quadrature technique to be used in gradient-based robust design optimization of aerodynamic shapes. The accuracy and computational efficiency of the method are investigated by means of mathematical analyses and numerical examples. The method is then applied to the robust design of airfoils under probabilistic uncertainty. It is shown that the solutions obtained through the proposed method can outperform those obtained through linearization, without any significant increase in computational cost.
KW - uncertainty analysis
KW - univariate reduced quadrature
KW - Monte Carlo methods
KW - probabilistic aeronautical design
KW - transonic aerodynamics
U2 - 10.2514/1.J050448
DO - 10.2514/1.J050448
M3 - Journal article
VL - 49
SP - 530
EP - 543
JO - AIAA Journal
JF - AIAA Journal
SN - 0001-1452
IS - 3
ER -