Thermal convection modulated by actively oscillating filament: The effect of filament rigidity

Zhao, Hao-Bo; Zhao, Chao-Ben; Zhou, Quan; Chong, Kai Leong

doi:10.1016/j.ijheatmasstransfer.2024.125649

International Journal of Heat and Mass Transfer

2024

DOI: 10.1016/j.ijheatmasstransfer.2024.125649

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Thermal convection modulated by actively oscillating filament: The effect of filament rigidity

Hao-Bo Zhao,

Chao-Ben Zhao,

Quan Zhou

et al.

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Cited by 3 publications

References 69 publications

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Spatial–temporal prediction model for unsteady near-wall flow around cylinder based on hybrid neural network

Qiu,

Mao,

Wang

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Computers & Fluids

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Spatial–temporal prediction model for unsteady near-wall flow around cylinder based on hybrid neural network

Qiu,

Mao,

Wang

et al. 2024

Computers & Fluids

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Prandtl number effect on heat transfer and flow structures in Rayleigh–Bénard convection modulated by an oscillatory bottom plate

Liu,

Jia,

Zhong

2025

International Journal of Heat and Mass Transfer

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Dynamics of a hot flexible cantilever plate under natural convection heat transfer in a square cavity

Kumar,

Ranjan,

Assam

et al. 2024

Physics of Fluids

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This study investigates the fluid-structure interactions of a flapping plate within a square cavity under four distinct boundary conditions, where two opposing walls are heated isothermally, and the others are adiabatic. These configurations are defined as case 1 (cooled side walls), case 2 (cooled top and bottom walls), case 3 (heated bottom and cooled top wall), and case 4 (heated top wall and cooled bottom wall). The effects of non-dimensional parameters, including Rayleigh number (Ra), Cauchy number (Ca), and mass ratio (β) on plate dynamics and convective heat transfer are analyzed. Numerical investigations are executed utilizing the SU2 open-source multi-physics computational fluid dynamics solver, with a fixed Prandtl number (Pr) set at 0.71 and dimensionless temperature difference (ϵ) established at 0.6. The results show that in cases 1 and 4, the plate exhibits no observable unsteadiness, while cases 2 and 3 reveal different oscillatory behavior within certain parameter ranges, including static mode, periodic flapping mode, quasi-periodic flapping mode, and chaotic flapping mode. In particular, the configuration in case 3 possesses higher inherent instability than case 2, causing the earlier onset of Hopf bifurcation. These findings provide valuable insights into the influence of boundary conditions on the behavior of flexible structures in fluid environments, highlighting the critical role of flow instabilities and boundary conditions in determining the dynamic response of the system.

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Thermal convection modulated by actively oscillating filament: The effect of filament rigidity

Cited by 3 publications

References 69 publications

Spatial–temporal prediction model for unsteady near-wall flow around cylinder based on hybrid neural network

Spatial–temporal prediction model for unsteady near-wall flow around cylinder based on hybrid neural network

Prandtl number effect on heat transfer and flow structures in Rayleigh–Bénard convection modulated by an oscillatory bottom plate

Dynamics of a hot flexible cantilever plate under natural convection heat transfer in a square cavity

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