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<p>The extensive use of carbon nanotube-based nanofluids in advanced technologies such as thermal management systems, biomedical drug delivery, electronic device cooling, and renewable energy systems like solar thermal collectors is attributed to their remarkable thermal conductivity, chemical stability, and enhanced transport properties. Motivated by these applications, the present work investigates the flow, heat, and mass transfer behavior of a hybrid nanofluid consisting of single-walled and multi-walled carbon nanotubes dispersed in water (SWCNTs–MWCNTs/H₂O) over an exponentially stretching surface. The analysis incorporates the effects of magnetic field, chemical reaction, thermal radiation, viscous dissipation, and thermophoresis, with thermal conductivity modeled using the Xue correlation. Using similarity transformations, the hydro-thermal and concentration equations are numerically analyzed and solved through the use of bvp4c method. The graphical scrutiny examines the effect of several factors on momentum, thermal, nanoparticle concentration profiles, as well as on drag coefficient and heat-mass transfer. The observations show that with chemical reaction and Brownian motion parameters, there is a noticeable drop in the concentration levels. Moreover, adjusting the thermal radiation parameter from 0.5 to 2.0 results in a 13.98% increase in the local Nusselt number.</p>

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Simulation of SWCNTs-MWCNTs/water-based MHD hybrid nanofluid flow over an exponentially stretching sheet using Xue model

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Ashish Mishra

摘要

The extensive use of carbon nanotube-based nanofluids in advanced technologies such as thermal management systems, biomedical drug delivery, electronic device cooling, and renewable energy systems like solar thermal collectors is attributed to their remarkable thermal conductivity, chemical stability, and enhanced transport properties. Motivated by these applications, the present work investigates the flow, heat, and mass transfer behavior of a hybrid nanofluid consisting of single-walled and multi-walled carbon nanotubes dispersed in water (SWCNTs–MWCNTs/H₂O) over an exponentially stretching surface. The analysis incorporates the effects of magnetic field, chemical reaction, thermal radiation, viscous dissipation, and thermophoresis, with thermal conductivity modeled using the Xue correlation. Using similarity transformations, the hydro-thermal and concentration equations are numerically analyzed and solved through the use of bvp4c method. The graphical scrutiny examines the effect of several factors on momentum, thermal, nanoparticle concentration profiles, as well as on drag coefficient and heat-mass transfer. The observations show that with chemical reaction and Brownian motion parameters, there is a noticeable drop in the concentration levels. Moreover, adjusting the thermal radiation parameter from 0.5 to 2.0 results in a 13.98% increase in the local Nusselt number.