Synchronous vortex shedding from aerodynamically isolated side-by-side cylinders imposed by flow-excited resonant acoustic modes

Shaaban, Mahmoud; Mohany, Atef

doi:10.1007/s00348-021-03301-9

Cited by 4 publications

(1 citation statement)

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“…The influence of the shape of blocking fluid on the force of group fluid Based on the above settings of COMSOL Multiphysics 6.0, by analyzing steady flow, the results are presented in figure 2(b), which displays velocity distribution and contour maps for various bluff body shapes. Notably, after passing through cylinders of different shapes, fluids formed vortex shedding with periodic wake structures downstream [42,43]. Due to most flow induced vibrations, the lateral effect of the fluid on the bluff body is more obvious.…”

Section: Principle Of Energy Harvestersmentioning

confidence: 99%

The optimal design of wind-induced vibration energy harvester with microscale and high efficiency

Chen,

Bao,

Guan

et al. 2024

Eng. Res. Express

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In order to improve the performance of wind-induced vibration energy harvester (WIV-EH), the bluff body and cantilever beam play a significant role when the energy harvester works. In this paper, a WIV-EH model is designed to explore the factors affecting energy capture efficiency. In the Optimal design of bluff body, five kinds of bluff body is set to analyse the influence of the shape on the lift and lift coefficient by COMSOL Multiphysics 6.0. According to the simulation results, the D-shaped bluff body is optimized by changing the scale ratio and windward surface shape. In the Optimal design of cantilever beam, the result shows that under the same bluff body and wind speed, the shape of cantilever beam will affect the magnitude and distribution of strain. we also designed cantilever beams with different materials and splicing materials, and studied the response voltage output at different wind speeds. According to the above results, a wind tunnel test was designed for verification. The research results may provide new ideas for improving the energy harvesting efficiency of energy harvesters.

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Section: Principle Of Energy Harvestersmentioning

confidence: 99%