Fluid‐Structure Interaction and Heat Transfer Characteristics of a Thin Flexible Heater Submersed in Non‐Newtonian Fluids Inside a Shear‐Driven Cavity

Heat Transfer, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

ABSTRACT This study examines fluid‐structure interaction (FSI)–induced flow and heat transfer phenomena in a double‐sided shear‐driven, that is, lid‐driven cavity filled with non‐Newtonian power‐law fluids. A flexible thin heater positioned at the center of serves as source, while moving side walls maintained constant low temperature perform sink. The numerical approach adopts finite element Galerkin method, integrating Arbitrary Lagrangian–Eulerian framework mesh technique to solve associated flow, thermal, stress fields. thermoelastodynamic system behavior is analyzed through streamline, isothermal, deformation visualizations, along an evaluation performance, namely, average Nusselt number. FSI‐induced internal scenario also studied terms maximum von Mises stress. Variation conditions necessarily includes mixed convection strength, shearing effect, fluid rheology, flexibility manifested by four governing parameters, Richardson number (0.1 ≤ Ri 10), Reynolds (100 Re 300), index (0.6 n 1.4), Cauchy (10⁻⁴ Ca 10⁻⁸). findings this reveal significant improvement for shear‐thinning fluids, most notable enhancement occurring highest ( ), where rate shows increase up 33.33% compared Newtonian insights might be helpful industrial process equipment, particularly applications such food processing, electronics cooling, chemical engineering, fluids are extensively used reactors related thermofluid systems.

Language: Английский

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Phase change materials in fluid–structure interaction within microchannel: A numerical and deep learning approach

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

Microchannels have revolutionized fields such as chemical analysis, drug delivery, and diagnostics, by offering enhanced control over fluid flows at microscale dimensions. The behavior of fluids in microchannels, governed principles like viscous capillary forces, differs significantly from macroscopic flows, these differences implications for fluid–structure interaction well. Microchannel geometries often involve thin walls, making them susceptible to deformation under fluid-induced stresses. This interplay between flow structural mechanics introduces complex phenomena vibrations, instabilities, alterations patterns. study evaluates involving nano-encapsulated phase change materials the existence a flexible fine structure base microchannel. boundaries microchannel are supposed rigid, while fin is elastic. versatile finite element method implemented numerically evaluate partial differential equation heat transfer. A grid refinement validation test conducted using convolutional neural network, network with bidirectional gated recurrent unit assures accuracy numerical results. Moreover, results demonstrate that suspending viscosity water enhances transfer during within

Language: Английский

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Thermo-hydraulic Perspectives of non-Newtonian channel flow with Active Flow Modulation: A CFD study

Journal of Non-Newtonian Fluid Mechanics, Journal Year: 2025, Volume and Issue: unknown, P. 105416 - 105416

Published: March 1, 2025

Language: Английский

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Numerical study of fluid-structure interaction for enhanced heat transfer in microchannels with an oscillating elastic wall

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105480 - 105480

Published: Nov. 13, 2024

Language: Английский

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Enhanced thermal efficiency on mixed convection flow of TiO2 – water nanofluid inside a double lid driven zigzag cavity with and without heated obstacles insertion

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 25, P. 101040 - 101040

Published: Dec. 26, 2024

Language: Английский

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