Applications of the dynamic mode decomposition

P. J. Schmid, L. Li, M. P. Juniper, O. Pust

Research output: Contribution to journalArticlepeer-review

331 Scopus citations

Abstract

The decomposition of experimental data into dynamic modes using a data-based algorithm is applied to Schlieren snapshots of a helium jet and to time-resolved PIV-measurements of an unforced and harmonically forced jet. The algorithm relies on the reconstruction of a low-dimensional inter-snapshot map from the available flow field data. The spectral decomposition of this map results in an eigenvalue and eigenvector representation (referred to as dynamic modes) of the underlying fluid behavior contained in the processed flow fields. This dynamic mode decomposition allows the breakdown of a fluid process into dynamically revelant and coherent structures and thus aids in the characterization and quantification of physical mechanisms in fluid flow. © 2010 Springer-Verlag.
Original languageEnglish (US)
Pages (from-to)249-259
Number of pages11
JournalTheoretical and Computational Fluid Dynamics
Volume25
Issue number1-4
DOIs
StatePublished - Jun 1 2011
Externally publishedYes

ASJC Scopus subject areas

  • Computational Mechanics
  • Engineering(all)
  • Fluid Flow and Transfer Processes
  • Condensed Matter Physics

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