Abstract
This study computationally investigates the time-dependent patterns emerging in the Soret regime for binary fluid convection in slightly inclined cylinders heated from below, with a particular focus on positive Soret coefficient thermophobic mixtures (S
T
> 0) and aspect ratios Γ = 5.2, Γ = 5.3, and Γ = 5.4. By varying the Rayleigh number (Ra) and smoothly adjusting its increments, we capture a range of spatio-temporal behaviours, revealing the coexistence of large-scale shear flows (LSF) and superhighway convection (SHC) patterns. SHC-like structures, characterised by a high base frequency, involve oscillating plumes arranged in adjacent lanes, moving in opposite directions along the inclination. Remarkably, this frequency remains nearly constant across different Ra values. Some of the observed coherent structures, such as periodic and modulated solutions, exhibit equivariance with respect to some elements of the
Funding source: Ministerio de Ciencia, Innovación y Universidades (Agencia Estatal de Investigación)
Award Identifier / Grant number: PID 2020-114043 GB-I 00 (MCIN/AEI/10.13039/501100011033)
Funding source: Ministerio de Ciencia, Innovación y Universidades (Agencia Estatal de Investigación)
Award Identifier / Grant number: PID2023-150029NB-I00 (MCIN/AEI/10.13039/501100011033 /FEDER, UE)
Acknowledgement
This research is supported by the Ministerio de Ciencia, Innovación y Universidades (Agencia Estatal de Investigación, project nos. PID2020-114043GB-I00 (MCIN/AEI/10.13039/501100011033) and PID2023-150029NB-I00 (MCIN/AEI/10.13039/501100011033/feder, ue).
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Research ethics: Not applicable.
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Informed consent: Not applicable.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: This work was supported by the Ministerio de Ciencia, Innovación y Universidades (Agencia Estatal de Investigación, project nos. PID2020-114043GB-I00 (MCIN/AEI/10.13039/501100011033) and PID2023-150029NB-I00 (MCIN/AEI/10.13039/501100011033/FEDER, UE).
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Data availability: Not applicable.
References
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Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Original Research Articles
- Modeling high-pressure viscosities of fatty acid esters and biodiesel fuels based on modified rough hard-sphere-chain model and deep learning method
- Study on heat and mass transfer mechanism of unsaturated porous media under CW laser irradiation: with and without carrier gas
- Efficient ecological function optimization for endoreversible Carnot heat pumps
- Entropy as Noether charge for quasistatic gradient flow
- Numerical simulation of binary convection within the Soret regime in a tilted cylinder
- Is there a need for an extended phase definition for systems far from equilibrium?
- Existence of the Chapman–Enskog solution and its relation with first-order dissipative fluid theories
- Performance comparison of water towers and combined pumped hydro and compressed gas system and proposing a novel hybrid system to energy storage with a case study of a 50 MW wind farm
- Thermodynamic characterization of transient valve temperatures in diesel engines using probabilistic methods
- Energetic analysis of a non-isothermal linear energy converter operated in reverse mode (I-LEC): heat pump