Wang, BinYu, Meilin2018-01-232018-01-232016Bin Wang and Meilin Yu. "Analysis of Wake Structures Behind an Oscillating Square Cylinder Using Dynamic Mode Decomposition", 46th AIAA Fluid Dynamics Conference, AIAA AVIATION Forum, (AIAA 2016-3779) https://doi.org/10.2514/6.2016-3779http://hdl.handle.net/11603/7698A dynamic mode decomposition (DMD) algorithm has been used to analyze the vortex structures shedding from an oscillating square cylinder. The flow fields are simulated using a high-order accurate flux reconstruction/correction procedure via reconstruction (FR/CPR) method. The dominant dynamic modes from the wake vortex structures are then extracted from the DMD analysis. Effects of the Strouhal number and Reynolds number on the dynamic modes are studied. Results from DMD are also compared with those from proper orthogonal decomposition (POD). In this study, the capability of the two flow analysis techniques, namely DMD and POD, on capturing dominant vortex structures have been successfully demonstrated. Insights are gained into the flow physics induced by flow structure interaction.22 pagesen-USThis item may be protected under Title 17 of the U.S. Copyright Law. It is made available by UMBC for non-commercial research and education. For permission to publish or reproduce, please contact the author.wake structuresdynamic mode decomposition algorithmDMD algorithmvortex structures sheddingflow field simulationflux reconstruction/correction procedure via reconstructionFR/CPRproper orthogonal decompositionPODText