Abstract
Centroidal Voronoi tessellation, leave-one-out cross validation, proper orthogonal decomposition, and multidimensional interpolation are integrated to define a reduced-order modeling approach for the parametric evaluation of steady aerodynamic loads. The proper orthogonal decomposition-based methodology allows reducing the number of degrees of freedom of the problem while maintaining good accuracy for the solution of complex three-dimensional viscous turbulent flows. As a result, it yields fairly accurate solutions at a fraction of the time required by standard computational fluid dynamics approaches. Three-dimensional examples for fixed- and rotary-wing cases of industrial relevance are used to assess the method in the cases of subsonic and transonic flow conditions.
Original language | English |
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Pages (from-to) | 2389-2405 |
Number of pages | 17 |
Journal | AIAA Journal |
Volume | 53 |
Issue number | 8 |
Early online date | 17 Mar 2015 |
DOIs | |
Publication status | Published - 31 Aug 2015 |
Keywords
- aerodynamics
- fluid dynamics
- tessellation
- interpolation