Wind turbine noise generation and propagation modeling at DTU Wind Energy: A review

WJ Zhu, WZ Shen, E Barlas, F Bertagnolio… - … and Sustainable Energy …, 2018 - Elsevier
The present review paper provides a comprehensive overview of the research activities on
wind turbine aeroacoustics at DTU over the last 20 years, as well as it gives the state-of-the …

Large eddy simulation study of the kinetic energy entrainment by energetic turbulent flow structures in large wind farms

C VerHulst, C Meneveau - Physics of Fluids, 2014 - pubs.aip.org
In this study, we address the question of how kinetic energy is entrained into large wind
turbine arrays and, in particular, how large-scale flow structures contribute to such …

Large scale instabilities in coaxial air-water jets with annular air swirl

A Kumar, S Sahu - Physics of Fluids, 2019 - pubs.aip.org
The aim of this paper is to characterize large-scale instabilities during the primary breakup
process in liquid centered coaxial air-water jets. The interest here is to investigate the role of …

Liquid jet disintegration memory effect on downstream spray fluctuations in a coaxial twin-fluid injector

A Kumar, S Sahu - Physics of Fluids, 2020 - pubs.aip.org
This paper intends to investigate the influence of unsteadiness in the liquid jet disintegration
process on downstream fluctuations of spray characteristics in a coaxial twin-fluid injector …

Experimental study of flow structures near the merging point of two parallel plane jets using PIV and POD

S Lee, YA Hassan - International Journal of Heat and Mass Transfer, 2018 - Elsevier
The initial and interacting region near the merging point of unventilated two parallel plane
jets were investigated using Particle Image Velocimetry (PIV) and Proper Orthogonal …

Wavelet-based multiresolution analysis of cavitation-induced loading instabilities under phase effect in a waterjet pump

G Zhao, L Cao, R Wu, N Liang, D Wu - Ocean Engineering, 2021 - Elsevier
As observed experimentally and numerically, the blade cavitation in a waterjet pump
presents multi-temporal-spatial scales under the inlet guide vanes (IGVs) wake …

PIV based POD analysis of coherent structures in flow patterns generated by triple interacting buoyant plumes

S Yin, Y Fan, M Sandberg, Y Li - Building and Environment, 2019 - Elsevier
The paper performs an investigation on multi-scale coherent structures that exist in different
flow patterns of triple interacting plumes. Time-averaged and turbulent flow characteristics …

On coherent structures of spatially oscillating planar liquid jet developing in a quiescent atmosphere

A Arote, M Bade, J Banerjee - Physics of Fluids, 2020 - pubs.aip.org
The momentum transport and entrainment of a developing plane jet are dominated by
coherent structures. Percipience about the formation, evolution, and interaction of these …

On the use of reduced basis methods to accelerate and stabilize the parareal method

F Chen, JS Hesthaven, X Zhu - Reduced Order Methods for modeling and …, 2014 - Springer
We propose a modified parallel-in-time—parareal—multi-level time integration method that,
in contrast to previously proposed methods, employs a coarse solver based on a reduced …

Entropy analysis of the flat tip leakage flow with delayed detached eddy simulation

H Li, X Su, X Yuan - Entropy, 2018 - mdpi.com
In unshrouded turbine rotors, the tip leakage vortices develop and interact with the passage
vortices. Such complex leakage flow causes the major loss in the turbine stage. Due to the …