Nanoparticle Aggregation and Thermophoretic Particle Deposition Process in the Flow of Micropolar Nanofluid over a Stretching Sheet

Abstract

The purpose of this research is to investigate the consequence of thermophoretic particle deposition (TPD) on the movement of a TiO2/water-based micropolar nanoliquid surface in the existence of a porous medium, a heat source/sink, and bioconvection. Movement, temperature, and mass transfer measurements are also performed in the attendance and nonappearance of nanoparticle aggregation. The nonlinear partial differential equations are transformed into a system of ordinary differential equations using appropriate similarity factors, and numerical research is carried out using the Runge-Kutta-Felhberg 4th/5th order and shooting technique. The obtained results show that improved values of the porous constraint will decline the velocity profile. Improvement in heat source/sink parameter directly affects the temperature profile. Thermophoretic parameter, bioconvection Peclet number, and Lewis number decrease the concentration and bioconvection profiles. Increases in the heat source/sink constraint and solid volume fraction will advance the rate of thermal dispersion. Nanoparticle with aggregation exhibits less impact in case of velocity profile, but shows a greater impact on temperature, concentration, and bioconvection profiles.

Effect of an inclined magnetic field on unsteady mixed convective stagnation point flow over a permeable stretching sheet with radiative heat transfer

“…Subsequently, ( ) Au nanomaterials raise the thermal distribution to demolish cancer cells. Yu et al [10] demonstrated the influence of nanomaterials formation, thermophoretic mass transport, and permeable media on the flow of microorganism micropolar fluid through ( ) TiO 2 nanomaterials past a stretchable surface driven to heat source/sink. They addressed the result with and without the noticeable of nanomaterials formation.…”

Plasmonic Nanofluids: Enhancing Photothermal Gradients toward Liquid Robots

“…26,27 Alternative plasmonic materials, such as nitrides or carbides, with clear advantages in terms of cost, chemical/thermal stability, hardness, and photon−phonon coupling, 28−32 over their silver, gold, or graphene counterparts, 35 remain underexplored for the photo-thermal conversion in nanofluids, despite their plasmonic nature and good absorption efficiencies. 33,34 While the nanofluid design has largely focused on the solid fraction, both in terms of overall thermal conductivity and photothermal response, 36,37 the liquid fraction plays a critical role in heat diffusion and advection. Specifically, the solvent's thermal diffusivity influences the spatial and temporal propagation of heat across the nanofluid.…”

“…While the nanofluid design has largely focused on the solid fraction, both in terms of overall thermal conductivity and photothermal response, , the liquid fraction plays a critical role in heat diffusion and advection. Specifically, the solvent’s thermal diffusivity influences the spatial and temporal propagation of heat across the nanofluid.…”

Features of Radiative Mixed Convective Heat Transfer on the Slip Flow of Nanofluid Past a Stretching Bended Sheet with Activation Energy and Binary Reaction

“…The consequences of thermophoresis and Brownian motion, third-grade fluid parameters, micro-polarity, induced magnetic field, and micro-inertia density on the stream of an electrically conductive nanofluid migration towards an exponentially stretchable sheet was analyzed by Awan et al [10]. Yu et al [11] scrutinized the analysis of thermophoretic particle deposition, porous medium, and nanoparticle aggregation on the movement of a bioconvection micropolar fluid comprising titanium dioxide nanoparticles over a stretched sheet subject to a heat source/sink. They discussed the outcomes with and without the appearance of nanoparticle aggregation.…”