Impingement of Supercooled Large Droplets via Reduced Order Models

Paper #:
  • 2011-38-0013

Published:
  • 2011-06-13
Citation:
Fossati, M., Habashi, W., and Baruzzi, G., "Impingement of Supercooled Large Droplets via Reduced Order Models," SAE Technical Paper 2011-38-0013, 2011, https://doi.org/10.4271/2011-38-0013.
Pages:
12
Abstract:
The high computational cost of 3-D viscous turbulent aero-icing simulations is one of the main limitations to address in order to more extensively use computational fluid dynamics to explore the wide variety of icing conditions to be tested before achieving aircraft airworthiness. In an attempt to overcome the computational burden of these simulations, a Reduced Order Modeling (ROM) approach, based on Proper Orthogonal Decomposition (POD) and Kriging interpolation techniques, is applied to the computation of the impingement pattern of supercooled large droplets (SLD) on aircraft. Relying on a suitable database of high fidelity full-order simulations, the ROM approach provides a lower-order approximation of the system in terms of a linear combination of appropriate functions. The accuracy of the resulting surrogate solution is successfully compared to experimental and CFD results for sample 2-D problems and then extended to a typical 3-D case.
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