• Corpus ID: 238744446

On Some Modal Implications of the Dynamic Mode Decomposition Through the Lens of a Subcritical Prism Wake

  title={On Some Modal Implications of the Dynamic Mode Decomposition Through the Lens of a Subcritical Prism Wake},
  author={Cruz Y. Li and Tim K. T. Tse and Gang Hu and Lei Zhou},
The Dynamic Mode Decomposition (DMD) is a Koopman-based algorithm that straightforwardly isolates individual mechanisms from the compound morphology of direct measurement. However, many may be perplexed by the messages the DMD structures carry. This work investigates the modal implications of the DMD/Koopman modes through the prototypical subcritical free-shear flow over a square prism. It selected and analysed the fluid mechanics and phenomenology of the ten most dominant modes. The results… 
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