Missing Point Estimation for steady aerodynamic applications

Model reduction in aerodynamic applications usually makes use of Proper Orthogonal Decomposition (POD). In this work a POD-based method, called Missing Point Estimation (MPE), will be applied to steady state flows with variation of the flow parameter angle of attack. The basic idea of MPE is to select a subset of the computational grid points (control volumes) and limit the governing equations to these. Subsequently, the remaining equations are projected onto the POD subspace. This approach has the advantage that the nonlinear right hand side of the governing equations has to be evaluated only for some selected points (control volumes) which makes the MPE faster than classical Galerkin projection. (© 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)