A5026345073- Fluid Dynamics and Vibration Analysis
- Vibration and Dynamic Analysis
- Wind and Air Flow Studies
- Aerodynamics and Fluid Dynamics Research
- Drilling and Well Engineering
- Innovative Energy Harvesting Technologies
- Fluid Dynamics Simulations and Interactions
- Methane Hydrates and Related Phenomena
- Geological Modeling and Analysis
Ocean University of China
2024-2025
Shanghai Jiao Tong University
2020-2023
This paper presents a numerical investigation on flow-induced vibration (FIV) of two elastically mounted cylinders in tandem arrangement at subcritical Reynolds numbers. The spacing between the cylinder centers is set four diameters, placing FIV problem within full wake interference regime. A fluid-structure interaction methodology based two-dimensional discrete vortex method developed and applied to simulation cylinders. To investigate effect upstream frequency number response downstream...
While it is known that rigid splitter plates play significant roles in flow control, the exact of them flow-induced vibration (FIV) have not been systematically investigated. This has motivated present work to experimentally investigate FIV a cylinder equipped with an upstream plate (USP), downstream (DSP), and symmetrically arranged water tunnel Reynolds number 1100–7700. The length range L* = 0–3.6 (L*=L/D, L length, D diameter). response characteristics, vortex evolution, fluid force,...
Prediction of the spatial configuration umbilical cable during deep-sea mining in-situ tests is great significance because dynamic change may cause to touch ground or overturn vehicle. In present paper, a real-time prediction method for process proposed. At first, environmental information, position and motion vessel–umbilical cable–mining system were collected by sensors arranged at different locations. Then, data converted transformed local vessel coordinate system. After that, commercial...
Some very useful methods for suppressing the flow-induced vibration (FIV) of a single cylinder are known to potentially have limited efficiency tandem-arrangement cylinders. In this paper, three splitter plates uniformly attached around with an angle 120° proposed suppress FIVs both and two cylinders in wind tunnel at Re = 4000–45,200. The plates’ length diameter ratios, L/Ds (where L is plate D diameter), set from 0.1 0.8. results show that method not only effectively suppresses...
With the rapid development of small and microelectronic devices, energy utilization from surrounding environment has been paid significant attention. This study aims to enhance performance harvesting devices utilizing a macro-fiber composite (MFC) attached cantilever beam with cylinder at free end three different cross sections, namely circular, square, triangular. Experiments were conducted in low-speed circulating water flume Reynolds numbers ranging within 770–8800. Three oscillation...
To understand fish swimming behavior in unsteady flows, this paper introduces the Kármán gait model to numerically investigate hydrodynamics of fish-like an asymmetric vortex environment, specifically P + S mode (a pair vortices are shed from one side cylinder and a single other during oscillation period) created by oscillating cylinder. The immersed boundary method is employed both airfoil vibrating Through simulations across broad range controlling parameters, we analyze advancement...
This study conducts experimental investigations into wake-induced vibration (WIV) of a circular cylinder placed downstream an oscillating cylinder. Surprisingly, it is observed that the previously identified WIV phenomenon, characterized by sustained increase in amplitude at higher reduced velocities, does not occur when upstream oscillates large amplitudes. Instead, different which we refer to as ‘wake-captured vibration’, becomes dominant. The experiments reveal negative correlation...
With the rapid development of micro and small electronic devices, energy utilization from surrounding environment has been paid significant attention. This study aims to enhance performance harvesting devices in low-speed water flow utilizing Macro-Fibre Composite (MFC) attached a cantilever beam with cylinder at free end three different cross-sections, namely circular, square, triangular. Experiments were conducted circulating flume Reynolds numbers ranging within 770-8800. Three...