Dynamic Mode Decomposition of Hydrofoil Cavitation

Jiahao Jia, Tingrui Liu, Juanjuan Qiao

2023

Abstract

This study performs dynamic mode decomposition (DMD) for the NACA66 cavitation process, and the obtained modes have stable linear characteristics. The diagrams of different modes and the frequency energies of the corresponding modes are also analyzed. We found that these different modes capture the flow characteristics at different frequencies. The mean mode (Mode1) represents the basic flow structure and plays a dominant role in the cavitation process. Mode2 denotes the cavitated region, and Mode3 and Mode4 represent the cavitated stretch off. The higher-order modes represent the alternating shedding of cavitation and some high-frequency characteristics in the cavitation. The research in this study is essential for our understanding of the three-dimensional characteristics of the flow field during cavitation and the three-dimensional dynamical mode characteristics.

Paper Citation

in Harvard Style

Jia J., Liu T. and Qiao J. (2023). Dynamic Mode Decomposition of Hydrofoil Cavitation. In Proceedings of the 1st International Conference on Data Processing, Control and Simulation - Volume 1: ICDPCS; ISBN 978-989-758-675-0, SciTePress, pages 102-108. DOI: 10.5220/0012150100003562

in Bibtex Style

@conference{icdpcs23,
author={Jiahao Jia and Tingrui Liu and Juanjuan Qiao},
title={Dynamic Mode Decomposition of Hydrofoil Cavitation},
booktitle={Proceedings of the 1st International Conference on Data Processing, Control and Simulation - Volume 1: ICDPCS},
year={2023},
pages={102-108},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012150100003562},
isbn={978-989-758-675-0},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International Conference on Data Processing, Control and Simulation - Volume 1: ICDPCS
TI - Dynamic Mode Decomposition of Hydrofoil Cavitation
SN - 978-989-758-675-0
AU - Jia J.
AU - Liu T.
AU - Qiao J.
PY - 2023
SP - 102
EP - 108
DO - 10.5220/0012150100003562
PB - SciTePress