Koopman analysis by the dynamic mode decomposition in wind engineering

CY Li, Z Chen, X Zhang, KT Tim, C Lin - Journal of Wind Engineering and …, 2023 - Elsevier
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 …

A review of advances towards efficient reduced-order models (ROM) for predicting urban airflow and pollutant dispersion

S Masoumi-Verki, F Haghighat, U Eicker - Building and Environment, 2022 - Elsevier
Computational fluid dynamics (CFD) models have been used for the simulation of urban
airflow and pollutant dispersion, due to their capability to capture different length scales and …

Dynamic mode decomposition on pressure flow field analysis: Flow field reconstruction, accuracy, and practical significance

CY Li, KT Tim, G Hu - Journal of Wind Engineering and Industrial …, 2020 - Elsevier
This study applies the Dynamic Mode Decomposition (DMD) technique to a prototypical
wind engineering problem of flow past a square prism at a Reynolds number of 22,000 to …

Best practice guidelines for the dynamic mode decomposition from a wind engineering perspective

CY Li, Z Chen, AU Weerasuriya, X Zhang, X Lin… - Journal of Wind …, 2023 - Elsevier
This paper distills the serial work of Li et al., 2020a, Li et al., 2021, Li et al., 2022a, Li et al.,
2022b, Li et al., 2022c, Li et al., 2023a, Li et al., 2023b into a practice guide for the Dynamic …

Effect of various multiple strip inserts and nanofluids on the thermal–hydraulic performances of parabolic trough collectors

N Abed, I Afgan, A Cioncolini, H Iacovides… - Applied Thermal …, 2022 - Elsevier
The thermal performance of the parabolic trough collectors can be improved by the use of
swirl generator inserts added to the solar receiver. These inserts help improve the energy …

Thermal-hydraulic analysis of parabolic trough collectors using straight conical strip inserts with nanofluids

N Abed, I Afgan, H Iacovides, A Cioncolini, I Khurshid… - Nanomaterials, 2021 - mdpi.com
In this study, we numerically investigated the effect of swirl inserts with and without
nanofluids over a range of Reynolds numbers for parabolic trough collectors with non …

Eddy-resolving Reynolds-stress modelling of thermal mixing in cross-stream type T-junction configurations

I Joksimović, S Jakirlić - Applied Thermal Engineering, 2023 - Elsevier
The present work is concerned with the numerical simulation study of turbulent thermal
mixing involving hot main and cold branch streams at high Reynolds numbers in two T …

[HTML][HTML] On modal decomposition as surrogate for charge-conservative EHD modelling of Taylor cone jets

S Cândido, JC Páscoa - International Journal of Engineering Science, 2023 - Elsevier
The dynamics of the interface of a fluid jet subjected to an external electrostatic field forming
a Taylor cone jet is investigated using a numerical approach. A charge-conservative …

Data-driven identification of coherent structures in gas–solid system using proper orthogonal decomposition and dynamic mode decomposition

D Li, B Zhao, J Wang - Physics of Fluids, 2023 - pubs.aip.org
Spatiotemporal coherent structures are critical in quantifying the hydrodynamics of dense
gas–solid flows. In this study, two data-driven methods, proper orthogonal decomposition …

A numerical approach to investigate the impact of acid-asphaltene sludge formation on wormholing during carbonate acidizing

I Khurshid, EW Al-Shalabi… - Journal of Energy …, 2022 - asmedigitalcollection.asme.org
Carbonate acidization is the process of creating wormholes by injecting acid to increase
reservoir permeability and oil production. Nevertheless, some reservoir oils are problematic …