38 citations · 93 across the 5 of their papers we have counts for
5 papers
Establishing Direct Phenomenological Connections between Fluid and Structure by the Koopman-Linearly-Time-Invariant Analysis
Cruz Y. Li, Zengshun Chen, Tim K. T. Tse +4
In this work, we introduce a novel data-driven formulation, the Koopman-Linearly-Time-Invariant (Koopman-LTI) analysis, for analyzing Fluid-Structure Interactions (FSI). An impleme…
On Some Modal Implications of the Dynamic Mode Decomposition Through the Lens of a Subcritical Prism Wake
Cruz Y. Li, Tim K. T. Tse, Gang Hu +1
The Dynamic Mode Decomposition (DMD) is a Koopman-based algorithm that straightforwardly isolates individual mechanisms from the compound morphology of direct measurement. However,…
The Linear-Time-Invariance Notion of the Koopman Analysis-Part 2: Physical Interpretations of Invariant Koopman Modes and Phenomenological Revelations
Cruz Y. Li, Zengshun Chen, Tim K. T. Tse +4
This serial work presents a Linear-Time-Invariance (LTI) notion to the Koopman analysis, finding consistent and physically meaningful Koopman modes and addressing a long-standing p…
Unbound Close Stellar Encounters in the Solar Neighborhood
Bradley M. S. Hansen
We present a catalog of unbound stellar pairs, within 100 pc of the Sun, that are undergoing close, hyperbolic, encounters. The data are drawn from the GAIA EDR3 catalogue, and the…
A Parametric and Feasibility Study for Data Sampling of the Dynamic Mode Decomposition: Spectral Insights and Further Explorations
Cruz Y. Li, Zengshun Chen, Tim K. T. Tse +4
This work continues the parametric investigation on the sampling nuances of the Dynamic Mode Decomposition (DMD) under the Koopman analysis. Through turbulent wakes, the investigat…