Experimental and numerical analysis of the bi-stable turbulent wake of a rectangular flat-backed bluff body

Y Fan, C Xia, S Chu, Z Yang, O Cadot - Physics of Fluids, 2020 - pubs.aip.org
The wake dynamics of a rectangular flat-backed bluff body is studied using both the wind
tunnel experiment and Improved Delayed Detached Eddy Simulation (IDDES) at Re= 9.2× …

Internal shear layer and vortex shedding development of a structured porous coated cylinder using tomographic particle image velocimetry

EJG Arcondoulis, Y Liu, D Ragni, F Avallone… - Journal of Fluid …, 2023 - cambridge.org
Vortex shedding in the wake of a cylinder in uniform flow can be suppressed via the
application of a porous coating; however, the suppression mechanism is not fully …

Tomographic PIV investigation on near-wake structures of a hemisphere immersed in a laminar boundary layer

H Tu, Z Wang, Q Gao, W She, F Wang… - Journal of Fluid …, 2023 - cambridge.org
The near wake of a hemisphere immersed in a laminar boundary layer is studied utilizing
time-resolved tomographic particle image velocimetry (TPIV). Focus is placed on the three …

Aerodynamically interacting vertical-axis wind turbines: Performance enhancement and three-dimensional flow

ID Brownstein, NJ Wei, JO Dabiri - Energies, 2019 - mdpi.com
This study examined three-dimensional, volumetric mean velocity fields and corresponding
performance measurements for an isolated vertical-axis wind turbine (VAWT) and for co-and …

POD analysis of the wake behind a circular cylinder coated with porous media

C Xia, Z Wei, H Yuan, Q Li, Z Yang - Journal of Visualization, 2018 - Springer
The wake of a circular cylinder coated with porous media was experimentally investigated
by hot-wire anemometry, particle image velocimetry (PIV) and smoke-wire visualization …

Effect of the free-stream turbulence on the bi-modal wake dynamics of square-back bluff body

G Chen, XB Li, K He, Z Cheng, D Zhou, XF Liang - Physics of Fluids, 2023 - pubs.aip.org
The effect of a free-stream turbulence intensity level on the wake dynamics of a square-back
Ahmed body is modeled using the improved delayed detached eddy simulation at Re= 9.6× …

Causality analysis of large-scale structures in the flow around a wall-mounted square cylinder

Á Martínez-Sánchez, E López… - Journal of Fluid …, 2023 - cambridge.org
The aim of this work is to analyse the formation mechanisms of large-scale coherent
structures in the flow around a wall-mounted square cylinder, due to their impact on pollutant …

A voxel-based machine-learning framework for thermo-fluidic identification of unknown objects

TI Zohdi - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
The rapid identification of unknown objects by their thermo-fluid flow field signature is
becoming increasingly more important. In this work, a machine-learning framework is …

Stochastic particle advection velocimetry (SPAV): theory, simulations, and proof-of-concept experiments

K Zhou, J Li, J Hong, SJ Grauer - Measurement Science and …, 2023 - iopscience.iop.org
Particle tracking velocimetry (PTV) is widely used to measure time-resolved, three-
dimensional velocity and pressure fields in fluid dynamics research. Inaccurate localization …

[HTML][HTML] On the generation and destruction mechanisms of arch vortices in urban fluid flows

E Lazpita, Á Martínez-Sánchez, A Corrochano… - Physics of …, 2022 - pubs.aip.org
This study uses higher-order dynamic mode decomposition to analyze a high-fidelity
database of the turbulent flow in an urban environment consisting of two buildings separated …