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Thermodynamic irreversibility on a peristaltic transport of CNT-based hybrid nanofluid flow over an elastic tube with sensitivity analysis
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DOI：10.1007/s10973-026-16021-1.png)
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Abstract
En 中文
This study has direct implications for biomedical pumps, microfluidic coolers, and flexible heat exchanger design by providing new strategies for enhancing thermal performance while reducing energy losses. Accordingly, the present work investigates the peristaltic transport of an MHD hybrid nanofluid containing SWCNTs and MWCNTs through a curved compliant tube under the combined influences of Hall current, Darcy resistance, velocity and thermal slip, and wall elasticity. A mathematical model is formulated to incorporate electromagnetic effects, porous medium permeability, internal heat generation, and thermodynamic irreversibility. Exact analytical solutions for the momentum, energy, entropy generation, and Bejan number equations are obtained using the perturbation method and validated against finite difference solutions. The analytical predictions exhibit excellent agreement with the numerical results, with maximum relative errors below 1.19% for velocity and 0.25% for temperature. The local sensitivity analysis identifies the curvature parameter (+ 1.80) as the most influential factor, followed by the magnetic parameter (− 1.40), Darcy number (+ 1.00), velocity slip (+ 0.70), and Hall parameter (− 0.50). These quantitative findings demonstrate that channel geometry predominantly enhances flow and heat transfer, whereas magnetic effects act as the principal resistive mechanism. Overall, the proposed model provides a unified thermodynamic framework for minimizing irreversibility and optimizing the performance of hybrid nanofluid-based peristaltic transport systems in biomedical and thermal engineering applications.
Keywords:
MHD peristaltic flow
Hybrid nanofluid
Hall effect
Thermal and velocity slip
Entropy generation
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1.8W
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