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Fuzzy uncertainty modelling of micropolar nanofluid flow in a vertically rotating porous channel under magneto-thermal-electrical effects using a two-parameter HAM approach
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DOI：10.1016/j.jppr.2026.04.002.png)
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Abstract
En 中文
This study presents a comprehensive investigation of micropolar nanofluid flow through a vertically rotating channel embedded in a resistive porous medium under the combined influence of magnetic, thermal, and electrical effects. The analysis also includes the use of fuzzy uncertainty modelling where the volume fraction of nanoparticles of 0%–3.5% is modelled using triangular fuzzy numbers, thus being able to give the realistic range of parameter variations as compared to other deterministic models. The combined effects of Hall current, Joule heating, and thermal radiation are systematically studied to explain their influence on the primary and secondary flows, microrotation, and thermal fields. A two-parameter homotopy analysis method (HAM) is employed to obtain highly accurate semi-analytical solutions and to effectively control convergence. Comparative evaluations between crisp and fuzzy solutions reveal notable sensitivity of the flow and heat transfer characteristics to uncertainty in nanoparticle concentration. Furthermore, analyses of skin friction coefficients and Nusselt numbers confirm the robustness and reliability of the proposed fuzzy-HAM approach in capturing uncertainty-driven magneto-thermal transport phenomena in micropolar nanofluids within porous rotating systems.
Keywords:
Micropolar fluid
Porous media
Thermal radiation effect
Triangular fuzzy number
Homotopy analytic method
Nanofluid
Journal
IF:
6.3
Papers:
336
Citations:
1.7K
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