An efficient POD/ROM based aeroelasticity model
In this paper, an efficient reduced order model (ROM) for aeroelastic and aeroservoelastic modeling has been developed based upon proper orthogonal decomposition (POD). This model is validated by computing the flutter boundary and reduced frequency ratio of aeroelastic AGARD 445.6 wing and successfully applied to flutter/LCO simulation of an advanced fighter plane configuration. The numerical accuracy and efficiency of this POD/ROM is quantified by using the full-order and full-coupled CFD/CSD simulation, experimental measurements and other existing computational results. The initial study has demonstrated that the new approach is highly efficient and accurate, thus can be used to obtain computational solutions which are the most accurate with the current state of the art and to sufficiently and rapidly predict the behavior of aerospace vehicles. Copyright © 2010 by the American Institute of Aeronautics and Astronautics, Inc.