Effect of pulsatile flow on hydrodynamic characteristics of vortex induced vibration of square cylinder

S Masood, MA Khan, SF Anwer, N Hasan, R Ali - Ocean Engineering, 2023 - Elsevier
Abstract Vortex Induced Vibration (VIV) of an elastically mounted square cylinder subjected
to pulsatile flow conditions is solved numerically for Reynolds number (Re= 100) and low …

Circulation production model and unified formation number of compressible vortex rings generated by a shock tube

Y Xiang, L Qin, S Qin, H Liu - Physics of Fluids, 2023 - pubs.aip.org
To investigate the formation number of compressible vortex rings (CVRs), a shock-tube
apparatus with an open end is designed to generate CVRs and the flow structures are …

On the evolution and circulation dynamics of the counter rotating vortex rings in the starting phases of under-expanded jets

H Ahmad, N Hasan, S Sanghi - Physics of Fluids, 2024 - pubs.aip.org
In the starting phases of laminar, axisymmetric, continuously blowing under-expanded jets,
the evolution of a counter rotating vortex ring (CRVR) over the periphery of the primary …

Onset conditions for Mach disk formation in underexpanded jet flows

R Muraoka, T Hiejima - Physics of Fluids, 2022 - pubs.aip.org
In this study, the formation conditions of the Mach disk in an underexpanded jet flow were
numerically and theoretically investigated under sonic injection conditions and the …

[HTML][HTML] Aerodynamic Drag Coefficient Prediction of a Spike Blunt Body Based on K-Nearest Neighbors

JA Sánchez Muñoz, C Lagarza-Cortés, J Ramírez-Cruz - Aerospace, 2024 - mdpi.com
Spike blunt bodies are a method to reduce drag when a body moves at speeds above
sound. Several numerical works based on computational fluid dynamics (CFD) have deeply …

Formation and propagation characteristics of a weak shock wave in maglev tube

KW Wang, XH Xiong, CY Wen, G Chen, XF Liang… - Physics of …, 2024 - pubs.aip.org
The propagation of the weak shock wave (WSW) to the tunnel exits and their radiation as
micro-pressure waves (MPWs) may cause sonic booms or structural resonance of buildings …