Primary instability, sensitivity and active control of flow past two tandem circular cylinders

Z Liu, L Zhou, H Tang, Z Wang, F Zhao, X Ji, H Zhang - Ocean Engineering, 2024 - Elsevier
The tandem two-cylinder configuration is frequently employed in engineering structures. Its
fluid force and vortex shedding are significantly greater than those of widely studied single …

Sensitivity-aided active control of flow past twin cylinders

L Zhou, H Li, KT Tim, X He, GYC Maceda… - International Journal of …, 2023 - Elsevier
The flow-induced vibration (FIV) of twin structures always experiences significantly larger
vibration amplitude than that of a single one, which causes severe structural safety …

Mode-based energy transfer analysis of flow-induced vibration of two rigidly coupled tandem cylinders

H Zhang, L Zhou, KT Tim - International Journal of Mechanical Sciences, 2022 - Elsevier
Two rigidly coupled cylinders are commonly available in engineering practices, which are
always subjected to flow-induced vibration (FIV) with large oscillating amplitude due to the …

Twisted-wind effect on the flow field of tall building

L Zhou, G Hu, KT Tse, X He - Journal of Wind Engineering and Industrial …, 2021 - Elsevier
Tall buildings in hilly terrain are very likely being attacked by topography-induced twisted
wind. In this study, the effects of three wind profiles on second-generation benchmark …

Dynamic mode decomposition analysis of the two-dimensional flow past two transversely in-phase oscillating cylinders in a tandem arrangement

H Zhang, L Zhou, T Liu, Z Guo, F Golnary - Physics of Fluids, 2022 - pubs.aip.org
The flow through tandem square cylinders was investigated at a Reynolds number of 100 for
oscillation amplitudes A= 0.1D to 0.7D and gaps L= 2.0D, 5.0D, and 6.0D, where D is the …

Numerical investigation on flow-induced vibration response of the cylinder inspired by the honeycomb

W Wang, F Zhao - Ocean Engineering, 2023 - Elsevier
The honeycomb-shaped structure has been proved to have good mechanical properties,
and is it possible combining its good mechanical properties together with its flow …

Experimental investigation on the aerodynamic characteristics of a tall building subjected to twisted wind

L Zhou, KT Tse, G Hu - Journal of Wind Engineering and Industrial …, 2022 - Elsevier
The influence of twisted wind profile (TWP) on aerodynamic characteristics of tall building is
investigated by pressure measurement test with varying angle of attack (AOA) of (− 90°, 90°) …

Fluid–structure-coupled Koopman mode analysis of free oscillating twin-cylinders

H Zhang, L Zhou, P Deng, TKT Tse - Physics of Fluids, 2022 - pubs.aip.org
Flow-induced vibration (FIV) of twin square cylinders in a tandem arrangement was
numerically investigated at Reynolds numbers 200 and gap L/D= 2.0, 4.0, and 6.0 (D is the …

Three-dimensional nonlinear vortex-induced vibrations of top-tension risers considering platform motion

B Zhang, Y Chai, F Li, Y Chen - Ocean Engineering, 2022 - Elsevier
Abstract A novel three-dimensional (3-D) dynamic model considering nonlinearity of tension
is proposed to explore in-line (IL), cross-flow (CF) and axial (AX) vortex-induced vibration …

Floquet-based analysis on three-dimensional non-axisymmetric instabilities in oscillatory-driven Taylor–Couette flows and their low-frequency asymptotic behavior …

MH Choujaa, M Riahi, S Aniss - Physics of Fluids, 2024 - pubs.aip.org
This paper revisits the linear stability analysis of oscillatory-driven flows between two
oscillating cylinders against non-axisymmetric disturbances. This study is motivated by the …