期刊论文

Liu, YK

英文

Physics of Fluids

1070-6631

2025

37

2

025213

10.1063/5.0256326

National Natural Science Foundation of China10.13039/501100001809 [52179060, 52479060]; National Natural Science Foundation of China [LYRCER202404]; Open Research Fund of the Key Laboratory of Lower Yellow River Channel and Estuary Regulation, MWR [SLKFJJ202401]; Open Research Fund of Science and Technology Innovation Platform of Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha University of Science Technology

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This study employed the k – ω Shear StressTransport turbulence model and the Arbitrary Lagrangian–Eulerian dynamic mesh method in OpenFOAM to investigate the effects of the oscillation frequency ratio ( f r ) on flow characteristics around a square cylinder at Re = 2.2 × 10 4 . The results revealed that the time-averaged drag coefficient ( ⁠ C d ¯ ⁠ ) and the Root Mean Square (RMS) of the lift coefficient ( ⁠ C l ′ ⁠ ) reached the peak values when f r = 1.0. For f r ≥ 2.5, the time-averaged pressure coefficient ( ⁠ C p ¯ ⁠ ) o...