Three-dimensional spectral proper orthogonal decomposition analyses of the turbulent flow around a seal-vibrissa-shaped cylinder

S Chu, C Xia, H Wang, Y Fan, Z Yang - Physics of Fluids, 2021 - pubs.aip.org
The flow around a seal-vibrissa-shaped cylinder (SVSC) is numerically investigated using
the large eddy simulation framework at a Reynolds number of 20 000. Compared with a …

Determination of single and double helical structures in a swirling jet by spectral proper orthogonal decomposition

Y Zhang, M Vanierschot - Physics of Fluids, 2021 - pubs.aip.org
This paper studies the coherent structures found in an annular swirling jet flow undergoing
vortex breakdown with control parameters, the Reynolds number Re= 8500 and the swirl …

Simulation-based study of low-Reynolds-number flow around a ventilated cavity

H Liu, Z Xiao, L Shen - Journal of Fluid Mechanics, 2023 - cambridge.org
Ventilated cavitating flows are investigated via direct numerical simulations, using a coupled
level set and volume of fluid method to capture the interface between the air and water …

Numerical study of the coherent structures in a transitional vertical channel natural convection flow

M Thebault, S Giroux-Julien, V Timchenko, J Reizes… - Physics of …, 2021 - pubs.aip.org
Numerical simulations of a spatially developing transitional flow in a vertical channel with
one side uniformly heated and subjected to random velocity fluctuations at the inlet have …

Modal decomposition analysis of unsteady viscous liquid sheet flows

A Colanera, A Della Pia, M Chiatto, L de Luca… - Physics of …, 2021 - pubs.aip.org
The unsteady dynamics of a gravitational liquid sheet, driven by a continuous harmonic
perturbation in the lateral velocity component applied at the inlet section, is analyzed. The …

Dominant modes in a gas cyclone flow field using proper orthogonal decomposition

M Kumar, SP Vanka, R Banerjee… - Industrial & …, 2022 - ACS Publications
The complex turbulent swirling flow inside cyclone separators was studied using high-fidelity
large eddy simulations (LESs). Using the appropriate subgrid-scale LES model, flow …

Investigation on the behavior of flow and aerodynamic noise generated around the tandem seal-vibrissa-shaped cylinder

J Zhu, Y Lu, Q Jia, C Xia, S Chu - Physics of Fluids, 2023 - pubs.aip.org
Through comparing with the tandem circular and elliptic cylinders with the same
characteristic dimensions, the behavior of flow and flow-induced noise generated around …

Transient characteristics of a typical vacuum ejector—An experimental study

M Raju, SLN Desikan, A Vaidyanathan - Physics of Fluids, 2022 - pubs.aip.org
Using simultaneous measurements of unsteady pressures in conjunction with time-resolved
Schlieren images and oil flow visualization, we investigate the characteristics of a typical …

Coaxial round water jet at velocity ratios close to unity, Part I: Mean and turbulent flow characteristics

D Hasin, A Mitra, R van Hout - International Journal of Heat and Fluid Flow, 2025 - Elsevier
In this paper, planar time-resolved particle image velocimetry measurements are reported in
the near-field of a coaxial jet at velocity ratios, ru= 0.66, 1.0 and 1.32. At each ru, at least two …

Role of flow structures on the deposition of low-inertia particles in turbulent pipe flow

RK Schlander, S Rigopoulos, G Papadakis - Physical Review Fluids, 2024 - APS
We analyze the effect of large-scale coherent structures on the deposition of low-inertia
particles in a turbulent pipe flow using extended proper orthogonal decomposition (EPOD) …