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<p>In the current context, nanotechnology plays a crucial role in improving fuel efficiency by employing engine oil-based nanoparticles, thus reducing machine wear and tear. Unlike previous studies, this work integrates the combined impacts of Cogley radiation, chemical reactions, and heat source with Hall current effects on the motion of copper and aluminum oxide MHD nanofluids in a rotating environment, which extends the understanding of thermophysical behavior of heat transfer processes in nanofluids. The base fluid chosen for this study is the Brinkman-type engine oil (EO). Analytical solutions are derived using the Laplace transform technique from the governing boundary value problem. Key findings include enhanced primary momentum with Brinkman parameters, diminished secondary momentum with Hall current, and the influence of radiation on temperature profiles. Numerical evaluations of engineering coefficients are presented, and the validity of our findings is confirmed by comparing them with prior studies, in specific cases. This research is crucial for advancing energy-efficient and reliable systems, with applications in critical fields such as automotive cooling, aerospace lubrication, and MHD generators, particularly in areas requiring precise control of heat and mass transfer.</p>

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Exploration of Hall Current Effect in Rotating Brinkman-Type Engine Oil-Based MHD Nanofluids

  • 期刊论文

  • 发表日期：

    2025年3月11日

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  • Piyush Kumar Gupta,
  • Om Prakash,
  • Seema Tinker

摘要

In the current context, nanotechnology plays a crucial role in improving fuel efficiency by employing engine oil-based nanoparticles, thus reducing machine wear and tear. Unlike previous studies, this work integrates the combined impacts of Cogley radiation, chemical reactions, and heat source with Hall current effects on the motion of copper and aluminum oxide MHD nanofluids in a rotating environment, which extends the understanding of thermophysical behavior of heat transfer processes in nanofluids. The base fluid chosen for this study is the Brinkman-type engine oil (EO). Analytical solutions are derived using the Laplace transform technique from the governing boundary value problem. Key findings include enhanced primary momentum with Brinkman parameters, diminished secondary momentum with Hall current, and the influence of radiation on temperature profiles. Numerical evaluations of engineering coefficients are presented, and the validity of our findings is confirmed by comparing them with prior studies, in specific cases. This research is crucial for advancing energy-efficient and reliable systems, with applications in critical fields such as automotive cooling, aerospace lubrication, and MHD generators, particularly in areas requiring precise control of heat and mass transfer.