Recovery in the wake of in-line axial-flow rotors

A Posa, R Broglia, E Balaras - Physics of Fluids, 2022 - pubs.aip.org
The flow around the rotor of an axial turbine, operating in the wake of an upstream one, is
resolved using large-eddy simulation on a cylindrical grid consisting of 3.8 billion points …

Predictive and Stochastic Reduced Order Modelling of Wind Turbine Wake Dynamics

SJ Andersen, JP Murcia Leon - Wind Energy Science …, 2022 - wes.copernicus.org
This article presents a reduced order model of the highly turbulent wind turbine wake
dynamics. The model is derived using a database of Large Eddy Simulations (LES), which …

Dynamic wind turbine wake reconstruction: A Koopman-linear flow estimator

Z Chen, Z Lin, X Zhai, J Liu - Energy, 2022 - Elsevier
A challenging topic arising in dynamic wind turbine wake is modeling, especially the low-
order approximation. The central problem is the fact that it has high-dimensional and …

Large-eddy simulation of wakes of waked wind turbines

X Liu, Z Li, X Yang, D Xu, S Kang, A Khosronejad - Energies, 2022 - mdpi.com
The wake dynamics of a wind turbine are influenced by the atmospheric turbulence and the
wake of its upwind turbine. In this work, we investigate the wake characteristics of a waked …

A reduced order modeling-based machine learning approach for wind turbine wake flow estimation from sparse sensor measurements

Z Luo, L Wang, J Xu, Z Wang, J Yuan, ACC Tan - Energy, 2024 - Elsevier
A comprehensive understanding of wind turbine wake characteristics is vital, particularly in
the context of expanding large offshore wind farms. Existing wake measurement techniques …

Similarities in the meandering of yawed rotor wakes

XL Xiong, S Laima, H Li, Y Zhou - Physics of Fluids, 2024 - pubs.aip.org
This study investigated the meandering of yawed wind turbine rotor wakes, focusing on the
similarities across different yaw angle scenarios. Spectrum analysis of velocity fluctuations …

Efficient flow reconstruction between dual tidal turbines: Large eddy simulation and reduced order modeling approach

CS Pant, J Grande, SH Frankel - Physics of Fluids, 2024 - pubs.aip.org
The present investigation seeks to analyze the fluid dynamics associated with tidal turbines
in the context of the EU (European Union) project NEMMO (The Next Evolution in Materials …

Optimization of aero-engine combustion chambers with the assistance of Hierarchical-Kriging surrogate model based on POD downscaling method

S Tong, Y Ma, M Guo, Y Tian, W Song, H Wang… - Advances in …, 2023 - Springer
In view of the long calculation cycle, high processing test and cost of the traditional aero-
engine combustion chamber design process, which restricts the engine optimization design …

Gappy POD 方法重构湍流数据的研究

李天一, 万敏平, 陈十一 - 力学学报, 2021 - lxxb.cstam.org.cn
Gappy POD 是一种基于本征正交分解(proper orthogonal decomposition, POD)
的数据重构方法. 本文研究了gappy POD 在湍流数据重构中的应用, 主要关注了以下两个因素的 …

Toward understanding waked flow fields behind a wind turbine using proper orthogonal decomposition

JS Moon, L Manuel - Journal of Renewable and Sustainable Energy, 2021 - pubs.aip.org
This study proposes the use of an approach based on proper orthogonal decomposition
(POD) to explore reduced-order wake turbulence fields. Waked turbulence fields are first …