Hierarchy of coherent vortices in turbulence behind a cylinder

J Fujino, Y Motoori, S Goto - Journal of Fluid Mechanics, 2023 - cambridge.org
To draw concrete pictures of the hierarchy of multiscale coherent vortices in turbulence
behind a cylinder and to reveal their sustaining mechanism, we conduct direct numerical …

Characterization of energy transfer and triadic interactions of coherent structures in turbulent wakes

DK Kinjangi, D Foti - Journal of Fluid Mechanics, 2023 - cambridge.org
Turbulent wakes are often characterized by dominant coherent structures over disparate
scales. Dynamics of their behaviour can be attributed to interscale energy dynamics and …

Energy transfer characteristics of sunroof wind buffeting noise via dynamic mode decomposition

S Cao, Z Zhang, Q Zhang, Z Xu, W Lin - Journal of Sound and Vibration, 2023 - Elsevier
To further investigate the reason contributing to the abrupt increase in pressure fluctuations
on the sunroof and the characteristics of energy transfer between velocity and pressure …

Experimental study of flow hydrodynamics around circular cylinder arrangements using particle image velocimetry

C Sahu, TI Eldho, BS Mazumder - Journal of Fluids …, 2023 - asmedigitalcollection.asme.org
This study investigates the turbulent flow properties experimentally in the vicinity of two side-
by-side circular cylinders, along with the influence of the third cylinder of the same …

Numerical investigation and statistical analysis of the flow patterns behind square cylinders arranged in a staggered configuration utilizing the lattice Boltzmann …

M Abid, N Yasin, M Saqlain… - Journal of Applied …, 2024 - digitalcommons.odu.edu
Flow past bluff bodies like square cylinders is important in engineering applications, but flow
patterns behind staggered cylinder arrangements remain poorly understood. Existing …

Interscale transfer of turbulent energy in grid-generated turbulence with low Reynolds numbers

M Wang, T Yurikusa, Y Sakai, K Iwano, Y Ito… - International Journal of …, 2022 - Elsevier
Direct numerical simulations are performed for grid-generated turbulence with low Reynolds
numbers to study the interscale transfer of turbulent energy. The Reynolds numbers based …

LES Investigation of a Piston-driven Synthetic Jet Actuator with Multiple Orifices

TP Duy, T Watanabe, K Nagata - CFD Letters, 2024 - semarakilmu.com.my
A piston-driven synthetic jet actuator has the potential for application in flow control and
fundamental studies of turbulence, although the high-speed flow generated by this actuator …

Self-similarity in single-point turbulent statistics across different quadrants in turbulent rotor wakes

XL Xiong, S Laima, H Li, Y Zhou - Physical Review Fluids, 2024 - APS
This paper presents a quadrant analysis of turbulent rotor wakes, placing a particular
emphasis on the self-similarity in single-point turbulent statistics. The self-similarity analysis …

Numerical analysis of the flow over four side-by-side square cylinders with different gaps

Q Sun, H Yuan, H Liang, X Zhou, D Zhan - Physics of Fluids, 2024 - pubs.aip.org
This study conducts two-dimensional numerical simulations of the flow over four square
cylinders arranged side by side at a low Reynolds number (Re) of 100. The investigation …

Related turbulent momentum and passive scalar transfer in a turbulent channel flow

A Tian, F Liu, Y Zhou - Acta Mechanica Sinica, 2022 - Springer
Direct numerical simulation was carried out to investigate the correlation between the
momentum and passive scalar transfer in a turbulent channel flow with Re τ= u τ δ/ν= 180 …