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<p>The effect of magnetohydrodynamic (MHD) power-law flow of hybrid nano-lubricant (SiO<sub>2</sub>–MoS<sub>2</sub>/PAO (polyalphaolefins)) over a stretching sheet is numerically investigated. The core innovation of the study is to accurately model the non-equilibrium boundary dynamics of a hybrid nano-lubricant (SiO<sub>2</sub>-MoS<sub>2</sub>/PAO), when applied to an elastically stretching surface, by introducing multiple slip conditions, namely, primary velocity slip, secondary cross-flow velocity slip, and multi-variable convective thermal slip. Appropriate similarity transformations are used to transform the governing partial differential equations (PDEs) into a system of nonlinear ordinary differential equations (ODEs). The resulting boundary value problem is solved numerically with MATLAB bvp4c solver. The effects of physical parameters on the velocity profiles, thermal fields, skin friction and the local Nusselt number are investigated and physically discussed. It can be observed that the skin friction reduces by up to 73.1178 and 80.5745% by varying primary slip velocity factor, 47.6882 and 54.5448% by varying ion-slip factor and 73.1178 and 80.5745% by varying Hall current in case of both NF and HNF, respectively. The energy transfer rate is significantly reduced by varying secondary velocity slip parameter from 0.9 to 1.3, up to 13.92% in case of HNF and 13.47% in case of NF. The fluid velocity undergoes a remarkable increase as a result of buoyancy factor, and the higher modified Biot numbers, leading to a significant enhancement of the temperature distributions, which are essential for achieving high-performance heat transfer rates in solar thermal collectors and nuclear cooling circuits.</p>

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Numerical analysis of power-law SiO2-MoS2/PAO hybrid nanofluid flow with multiple slip conditions using modified Fourier’s law over a stretching surface

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Munawar Alam,
  • Hassan Ali Ghazwani,
  • Hijaz Ahmad,
  • Taza Gul,
  • Gulzar Ali Khan

摘要

The effect of magnetohydrodynamic (MHD) power-law flow of hybrid nano-lubricant (SiO2–MoS2/PAO (polyalphaolefins)) over a stretching sheet is numerically investigated. The core innovation of the study is to accurately model the non-equilibrium boundary dynamics of a hybrid nano-lubricant (SiO2-MoS2/PAO), when applied to an elastically stretching surface, by introducing multiple slip conditions, namely, primary velocity slip, secondary cross-flow velocity slip, and multi-variable convective thermal slip. Appropriate similarity transformations are used to transform the governing partial differential equations (PDEs) into a system of nonlinear ordinary differential equations (ODEs). The resulting boundary value problem is solved numerically with MATLAB bvp4c solver. The effects of physical parameters on the velocity profiles, thermal fields, skin friction and the local Nusselt number are investigated and physically discussed. It can be observed that the skin friction reduces by up to 73.1178 and 80.5745% by varying primary slip velocity factor, 47.6882 and 54.5448% by varying ion-slip factor and 73.1178 and 80.5745% by varying Hall current in case of both NF and HNF, respectively. The energy transfer rate is significantly reduced by varying secondary velocity slip parameter from 0.9 to 1.3, up to 13.92% in case of HNF and 13.47% in case of NF. The fluid velocity undergoes a remarkable increase as a result of buoyancy factor, and the higher modified Biot numbers, leading to a significant enhancement of the temperature distributions, which are essential for achieving high-performance heat transfer rates in solar thermal collectors and nuclear cooling circuits.