Both time-dependent and time-invariant Proper Orthogonal Decompositions are performed on LES and PIV data as an initial step in a study of tumble breakdown in in-cylinder flows. Evidence of tumble instability during compression is found in the time-dependent POD of both data sets. Time-invariant POD modes are presented which will be used later in low-dimensional models of these systems.
- Fluids Engineering Division
POD Analysis of In-Cylinder Flows
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Fogleman, M, Rempfer, D, Lumley, JL, & Haworth, D. "POD Analysis of In-Cylinder Flows." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 2: Symposia and General Papers, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 1173-1178. ASME. https://doi.org/10.1115/FEDSM2002-31413
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