[HTML][HTML] Transition of wake flows past two circular or square cylinders in tandem

MR Rastan, MM Alam - Physics of Fluids, 2021 - pubs.aip.org
This paper presents the dependence of flow transitions and flow regimes on Reynolds
number Re (≤ 10 5) and scaled cylinder center-to-center spacing S*(≤ 10) for two tandem …

Topological description of near-wall flows around a surface-mounted square cylinder at high Reynolds numbers

Y Cao, T Tamura, D Zhou, Y Bao, Z Han - Journal of Fluid Mechanics, 2022 - cambridge.org
This study topologically describes near-wall flows around a surface-mounted cylinder at a
high Reynolds number (. The former should significantly affect the strength of the side vortex …

The wake of a wall-mounted rectangular cylinder: Cross-sectional aspect ratio effect

MR Rastan, H Shahbazi, A Sohankar, MM Alam… - Journal of Wind …, 2021 - Elsevier
Large-eddy simulations are performed to study the wake of a wall-mounted finite-length
rectangular prism at a Reynolds number Re​=​ 1.2​×​ 10 4 for the prism aspect ratio AR …

Flow and heat transfer across two inline rotating cylinders: Effects of blockage, gap spacing, Reynolds number, and rotation direction

MR Rastan, A Sohankar, MM Alam - International Journal of Heat and Mass …, 2021 - Elsevier
The manipulation of the heat transfer and flow field using cylinder rotation is of a classical
issue. It is of fundamental importance to study the dependence of wake and thermal …

Effects of oncoming flow turbulence on the near wake and forces of a 3D square cylinder

C Zhao, H Wang, L Zeng, MM Alam, X Zhao - Journal of Wind Engineering …, 2021 - Elsevier
The aerodynamic forces and near wake of a three-dimensional (3D) square cylinder with a
height-to-width ratio (H/d) of 5 were experimentally studied in a low-speed wind tunnel at a …

Control of the flow around a finite square cylinder with a flexible plate attached at the free end

H Wang, C Zhao, L Zeng, M Alam, H Tang - Physics of Fluids, 2022 - pubs.aip.org
A flexible plate vertically clamped at the free-end leading edge was used to modulate the
aerodynamic forces on a wall-mounted finite square cylinder. The side width (d) of the …

Robust and adaptive deep reinforcement learning for enhancing flow control around a square cylinder with varying Reynolds numbers

W Jia, H Xu - Physics of Fluids, 2024 - pubs.aip.org
The present study applies a Deep Reinforcement Learning (DRL) algorithm to Active Flow
Control (AFC) of a two-dimensional flow around a confined square cylinder. Specifically, the …

Comparative analysis of the flow control over a circular cylinder with detached flexible and rigid splitter plates

F Eydi, A Mojra, R Abdi - Physics of Fluids, 2022 - pubs.aip.org
A comparative study is performed on a circular cylinder with both flexible and rigid splitter
plates (SPs). This study has the novelty of using single and dual detached SPs located …

A numerical study on the benefits of passive-arc plates on drag and noise reductions of a cylinder in turbulent flow

F Eydi, A Mojra - Physics of Fluids, 2023 - pubs.aip.org
In this study, we introduce a novel arrangement consisting of two arc plates around a
cylinder with the privilege of improved fluid flow and noise control. The arc plates are placed …

Flow field around two tandem non-identical-height square buildings via LES

F Freidooni, A Sohankar, MR Rastan, E Shirani - Building and Environment, 2021 - Elsevier
Although the study of flow around buildings has a rich background, the development of
construction material, the congestion of buildings, the urban ventilation and consideration of …