On Aerodynamic Design with a POD Surrogate Model

Valentina Dolci () and Renzo Arina ()
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Valentina Dolci: Politecnico di Torino
Renzo Arina: Politecnico di Torino

A chapter in Variational Analysis and Aerospace Engineering, 2016, pp 219-246 from Springer

Abstract: Abstract Three surrogate models, or reduced-order models (ROMs), are constructed using the proper orthogonal decomposition (POD) applied in the parameter space. We use a reduced snapshot set adopting full and fractional factorial planes together with quadtree distribution for the initial positioning of the snapshots. To compute the POD coefficients, response surface methodology is employed. In the first application a ROM is constructed in order to analyze the subsonic flow past a two-dimensional airfoil. The second example regards a transonic two-dimensional flow in a five-dimensional shape parameter space. In the last case a surrogate model for database generation considering a three-dimensional aircraft configuration is constructed. In all the three cases a posteriori error estimates were performed and the surrogate models showed good agreement with the CFD reference solution.

Keywords: Mach Number; Radial Basis Function; Surrogate Model; Proper Orthogonal Decomposition; Proper Orthogonal Decomposition Mode (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/978-3-319-45680-5_9

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