Koopman analysis by the dynamic mode decomposition in wind engineering
The Koopman theory, a concept to globally model nonlinear signals by a linear Hamiltonian,
has been at the frontier of fluid mechanics research for the last decade. Wind engineering …
has been at the frontier of fluid mechanics research for the last decade. Wind engineering …
A POD-DMD augmented procedure to isolating dominant flow field features in a street canyon
This work develops a data analysis procedure, namely, proper orthogonal decomposition
(POD)-dynamic mode decomposition (DMD) augmented analysis, to isolate the energy-and …
(POD)-dynamic mode decomposition (DMD) augmented analysis, to isolate the energy-and …
Decoupling bi-directional fluid–structure interactions by the Koopman theory: Actualizing one-way subcases and the role of crosswind structure motion
We propose a novel thinking of decoupling bi-directional fluid–structure interactions (bi-FSI)
into simpler mono-directional components for analytical insights. The decoupling aims to …
into simpler mono-directional components for analytical insights. The decoupling aims to …
Embedded LES of thermal stratification effects on the airflow and concentration fields around an isolated high-rise building: Spectral and POD analyses
Non-isothermal stratification conditions can alter the airflow pattern and pollutant dispersion
process within urban areas. The present study is focused on the impact of various …
process within urban areas. The present study is focused on the impact of various …
Turbulence-induced ventilation of an isolated building: Ventilation route identification using spectral proper orthogonal decomposition
Turbulence dominates the natural ventilation of a building when openings are parallel to the
external wind, and multiple factors associated with turbulence simultaneously affect natural …
external wind, and multiple factors associated with turbulence simultaneously affect natural …
Data extension of high-resolution wind speed database by fusing meteorological observation and local objective analysis data with POD–LSE
Newly generated high-resolution meteorological reanalysis data have been published over
the past few years on short records. Producing high-resolution data in long-term time scales …
the past few years on short records. Producing high-resolution data in long-term time scales …
Improved convergence of the spectral proper orthogonal decomposition through time shifting
DCP Blanco, E Martini, K Sasaki… - Journal of Fluid …, 2022 - cambridge.org
Spectral proper orthogonal decomposition (SPOD) is an increasingly popular modal
analysis method in the field of fluid dynamics due to its specific properties: a linear system …
analysis method in the field of fluid dynamics due to its specific properties: a linear system …
Extended spectral proper orthogonal decomposition for analysis of correlated surrounding flow structures and wind load components of a building
Proper orthogonal decomposition (POD) has been used in numerous studies in wind
engineering to extract key features of a building's surrounding flow field and surface …
engineering to extract key features of a building's surrounding flow field and surface …
Fluid–structure interaction on vibrating square prisms considering interference effects
Existing research on interference effects predominantly focuses on rigid structures.
However, studies based on rigid models tend to overlook the feedback of structural motions …
However, studies based on rigid models tend to overlook the feedback of structural motions …
On the flow dynamics around a surface-mounted cube and boundary layer effects
BL da Silva, D Sumner, DJ Bergstrom - Journal of Fluid Mechanics, 2024 - cambridge.org
Motivated by contradicting or insufficient information regarding the large-scale flow
dynamics around surface-mounted finite-height square prisms of small aspect ratio, the …
dynamics around surface-mounted finite-height square prisms of small aspect ratio, the …