Higher order dynamic mode decomposition

S Le Clainche, JM Vega - SIAM Journal on Applied Dynamical Systems, 2017 - SIAM
This paper deals with an extension of dynamic mode decomposition (DMD), which is
appropriate to treat general periodic and quasi-periodic dynamics, and transients decaying …

[HTML][HTML] 动力学模态分解及其在流体力学中的应用

寇家庆, 张伟伟 - 空气动力学学报, 2018 - html.rhhz.net
随着计算流体力学和先进流动测试技术的发展, 流动的刻画越来越精细, 伴随而来的海量流场
信息的模态提取与复杂动力学特征的模型化成为当前流体力学的研究热点. 动力学模态分解 …

Data-driven experimental modal analysis by dynamic mode decomposition

A Saito, T Kuno - Journal of Sound and Vibration, 2020 - Elsevier
This paper discusses the application of Dynamic Mode Decomposition (DMD) to the
extraction of modal properties of linear mechanical systems, ie, experimental modal analysis …

Effects of recess length on combustion instability in a model chamber with a gas-centered swirl coaxial injector

Y Wang, CH Cho, J Du, CH Sohn - Aerospace Science and Technology, 2022 - Elsevier
Combustion instability is investigated in a model chamber by changing the recess length of
a gas-centered swirl coaxial injector ranging from 0 mm to 20 mm with a 4 mm interval …

On the comparison of LES data-driven reduced order approaches for hydroacoustic analysis

M Gadalla, M Cianferra, M Tezzele, G Stabile, A Mola… - Computers & …, 2021 - Elsevier
Abstract In this work, Dynamic Mode Decomposition (DMD) and Proper Orthogonal
Decomposition (POD) methodologies are applied to hydroacoustic dataset computed using …

Data-driven model order reduction for structures with piecewise linear nonlinearity using dynamic mode decomposition

A Saito, M Tanaka - Nonlinear Dynamics, 2023 - Springer
Piecewise-linear nonlinear systems appear in many engineering disciplines. Prediction of
the dynamic behavior of such systems is of great importance from practical and theoretical …

Energy transfer characteristics of sunroof wind buffeting noise via dynamic mode decomposition

S Cao, Z Zhang, Q Zhang, Z Xu, W Lin - Journal of Sound and Vibration, 2023 - Elsevier
To further investigate the reason contributing to the abrupt increase in pressure fluctuations
on the sunroof and the characteristics of energy transfer between velocity and pressure …

Prediction of combustion instability by combining transfer functions in a model rocket combustor

Y Wang, CH Sohn, J Bae, Y Yoon - Aerospace Science and Technology, 2021 - Elsevier
The flame transfer function (FTF) and acoustic transfer function (ATF) are estimated
experimentally and numerically, respectively, and both are combined to predict combustion …

Data-driven analysis of oscillations in Hall thruster simulations

D Maddaloni, A Domínguez-Vázquez… - Plasma Sources …, 2022 - iopscience.iop.org
A data-driven modal analysis of plasma oscillations in a stationary plasma thruster-100-like
Hall thruster in the 1–120 kHz range is presented. Data are generated by a two-dimensional …

Numerical study on the influence of acoustic natural frequencies on the dynamic behaviour of submerged and confined disk-like structures

M Bossio, D Valentín, A Presas, DR Martin… - Journal of Fluids and …, 2017 - Elsevier
The dynamic response of disks has been deeply studied in the last years given that their
dynamic characteristics present similarities with more complex disk-like structures used in …