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<p>One of the main uses of the nanofluid is the biological convection in renewables. The primary goal of the current investigation is to examine the stagnation point in the bioconvection flow of tangent hyperbolic nanofluid flow, including micro-organisms, past a stretchable heated sheet. Viscous dissipation and heat radiation were studied. The dual component of the Buongiorno nanomaterial theory was applied to simulate thermophoretic effects and Brownian motion. For the porous medium, a Darcy drag force model was used to study non-Newtonian properties. Using a similarity framework, the system of modelled equations was reduced to the standard system of dimensionless differential equations. The quantitative approximation study was done using the boundary value solver (BVP4C). The effects of several important variables affecting fluid microbe density, thermal distribution, nanofluid concentration and velocity were examined graphically. Physical parameters, including surface drag force, heat transportation, mass transportation and microbe density number for the current challenge were studied. It can be seen that the thermal fields of the nanofluid intensify with increasing thermal field and viscous dissipation. Furthermore, the thermal field and concentration of the nanomaterials were improved by a higher thermophoretic force. Additionally, the microbes’ density distribution declined due to the increase in Peclet number and bioconvection Lewis number. The validity of the results was proved using numerical tabular data for the surface velocity gradient.</p>

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The Darcy–Forchheimer tangent hyperbolic bioconvection flow of a nanofluid caused by a convective sheet: numerical study of the stagnation point

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • M Faizan Ahemd,
  • Farhan Ali,
  • Maawiya Ould Sidi,
  • Syed Sohaib Zafar,
  • Abdulkafi Mohammed Saeed

摘要

One of the main uses of the nanofluid is the biological convection in renewables. The primary goal of the current investigation is to examine the stagnation point in the bioconvection flow of tangent hyperbolic nanofluid flow, including micro-organisms, past a stretchable heated sheet. Viscous dissipation and heat radiation were studied. The dual component of the Buongiorno nanomaterial theory was applied to simulate thermophoretic effects and Brownian motion. For the porous medium, a Darcy drag force model was used to study non-Newtonian properties. Using a similarity framework, the system of modelled equations was reduced to the standard system of dimensionless differential equations. The quantitative approximation study was done using the boundary value solver (BVP4C). The effects of several important variables affecting fluid microbe density, thermal distribution, nanofluid concentration and velocity were examined graphically. Physical parameters, including surface drag force, heat transportation, mass transportation and microbe density number for the current challenge were studied. It can be seen that the thermal fields of the nanofluid intensify with increasing thermal field and viscous dissipation. Furthermore, the thermal field and concentration of the nanomaterials were improved by a higher thermophoretic force. Additionally, the microbes’ density distribution declined due to the increase in Peclet number and bioconvection Lewis number. The validity of the results was proved using numerical tabular data for the surface velocity gradient.