article · Results in Materials
Industrial interest in advancing working fluids has encouraged the development of hybrid nanofluids to improve heat propagation rates. This investigation examines how thermal radiation and convection behave during the elastic deformation of two hybrid magneto-nanofluid mixtures, single-walled carbon nanotubes with silver, and multi-walled carbon nanotubes with molybdenum tetrathiolate, suspended in engine oil. The flow and heat transfer take place within a vertical cylinder, incorporating key thermofluidic characteristics into the mathematical model. After applying invariant transformations, the governing equations were solved using the Chebyshev Collocation Scheme. The resulting numerical findings reveal that thermal distribution decreases across both hybrid nanofluid formulations when the Prandtl number, elastic deformation parameter, or viscoelastic term increases.
Engine oil and other industrial lubricants require efficient heat management to protect mechanical systems from overheating. Understanding how adding carbon nanotubes and metallic nanoparticles alters heat distribution helps engineers predict fluid performance under thermal and mechanical stress, providing fundamental insight needed to design more effective cooling systems in industrial equipment.
This theoretical study offers fundamental fluid dynamics modelling that could eventually inform the formulation of high-performance engine oils and thermal management systems in machinery. The work appears to be at an early stage of numerical research, requiring physical synthesis, experimental validation, and stability testing before industrial lubricant manufacturers can utilise the concepts in practical applications.
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An increasing interest in heat transfer of industrial working fluids and thermal applications of nanofluids propels the advancement of nanotechnology. Recently, focuses have been shifted to hybridization of nanofluids with the aim of enhancing heat propagation rate of conventional fluids. Hence, in this study, the elastic deformation of thermal radiation and convection for hybridized SWCNT-Ag and MWCNT-MoS4 magneto-nanomaterials in engine oil is examined. The thermal transfer of the hybrid nanofluids occurs in a vertical cylinder with thermofluidic features being considered in the model formulation. With appropriate variables, an invariant transformation of the model is obtained, which is then solved using Chebyshev Collocation Scheme (CCS). The data outcomes revealed that heat distribution is reduced with rising Prandtl number, elastic deformation and the viscoelastic term for both SWCNT-Ag and MWCNT-MoS4 hybrid nanofluids.
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DOI: 10.1016/j.rinma.2023.100380
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