2022
DOI: 10.3390/fluids7090292
|View full text |Cite
|
Sign up to set email alerts
|

On the Wake Dynamics of an Oscillating Cylinder via Proper Orthogonal Decomposition

Abstract: The coherent structures and wake dynamics of a two-degree-of-freedom vibrating cylinder with a low mass ratio at Re=5300 are investigated by means of proper orthogonal decomposition (POD) of a numerical database generated using large-eddy simulations. Two different reduced velocities of U*=3.0 and U*=5.5, which correspond with the initial and super-upper branches, are considered. This is the first time that this kind of analysis is performed in this kind of system in order to understand the role of large coher… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
2
0

Year Published

2023
2023
2025
2025

Publication Types

Select...
5
1
1

Relationship

1
6

Authors

Journals

citations
Cited by 8 publications
(2 citation statements)
references
References 52 publications
0
2
0
Order By: Relevance
“…In this study, the DMD computations have been conducted using pyLOM [64], which is a high-performance computing tool for modal decompositions already used by Miró et al [65] and Eiximeno et al [66] for DMD analysis. In pyLOM, the computation of A follows the algorithm proposed by Tu et al [67].…”
Section: Data Availability Statementmentioning
confidence: 99%
“…In this study, the DMD computations have been conducted using pyLOM [64], which is a high-performance computing tool for modal decompositions already used by Miró et al [65] and Eiximeno et al [66] for DMD analysis. In pyLOM, the computation of A follows the algorithm proposed by Tu et al [67].…”
Section: Data Availability Statementmentioning
confidence: 99%
“…Malm et al [12] (henceforth MAL12) performed a POD analysis of the diffuser contained 196 snapshots of the stream-wise velocity field spanning a time In contrast, the present reduced order model analysis consists of 1880 snapshots over a time interval of tU b /h = 808, leading to a temporal resolution of ∆tU b /h = 0.43. The computation of the modes, temporal spectra and energy has been performed through an in-house parallel toolbox, described in Eiximeno et al [23]. Compared to MAL12, this analysis has 9 times more instants, two times more temporal span and has 4 times more time-resolution.…”
Section: Pod and Dmd Analysismentioning
confidence: 99%