- Dowell, Earl H. and Hall, Kenneth C. and Thomas, Jeffrey P. and Florea, Razvan and Epureanu, Bogdan I. and Heeg, Jennifer, Reduced order models in unsteady aerodynamics,
Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, vol. 1
pp. 622 - 637 .
(last updated on 2007/04/10)
A review is given on the status of reduced order modeling of unsteady aerodynamic systems. Starting with either a time domain or frequency domain computational fluid dynamics (CFD) analysis of unsteady aerodynamic flows, a large, sparse eigenvalue is solved using the Lanczos algorithm. Following this, a Reduced Order Model of the unsteady flow is constructed. As an alternative to the use of eigenmodes, Proper Orthogonal Decomposition (POD) is also considered.
Aerodynamics;Unsteady flow;Eigenvalues and eigenfunctions;Computational fluid dynamics;Viscosity;Transonic flow;Shock waves;