Impact of nanoparticle shape on magnetohydrodynamic stagnation-point flow of Carreau nanoliquid: A comparative study

Abstract

In this paper, a numerical computational work is carried out to investigate the significance of nanoparticle shape on magnetohydrodynamic stagnation-point flow of Carreau nanoliquid caused by a horizontally moving thin needle. The drive and thermal transport nature of Ti6Al4V+Ethylene glycol nanoliquid under the stimulus of space-dependent heat source and magnetized force is discussed numerically. The novelty of this work is to obtain the simultaneous solutions for three different shapes of nanoparticles namely spherical, cylindrical and laminar. The flow governing partial differential equations are transformed into ordinary differential equations with appropriate similarity variables and solved numerically by using Runge–Kutta and Newton's approach. Numerical outcomes of velocity and thermal distributions under the influence of different physical parameters are illustrated via graphical trends, wall friction and rate of heat transfer are interpreted using tabular values. It reveals from results that the thermal transfer performance of the Carreau nanoliquid is advanced when spherical shaped nanoparticles are used as compared with cylindrical and laminar-shaped nanoparticles. Also, it is witnessed that needle thickness parameter plays vital role in augmenting thermal transport rate of the nanoliquid.

MHD mixed convective stagnation point flow of nanofluid past a permeable stretching sheet with nanoparticles aggregation and thermal stratification

“…Considering all these above facts, the foremost flow equations are illustrated as 15 , 27 , 43 : denotes the velocity component along the and -axis, respectively. The -axis measures beside the sheet, while the -axis measures perpendicular to it.…”

“…The final product's quality is highly dependent on the cooling pace, which is controlled by the magnetic field and electrically conducting fluids. N. Sandeep 27 . Nanoparticle form and magnetohydrodynamic stagnation-point flow in Carreau nanoliquid were studied side by side by Sandeep 27 .…”

“…N. Sandeep 27 . Nanoparticle form and magnetohydrodynamic stagnation-point flow in Carreau nanoliquid were studied side by side by Sandeep 27 . Sutter by fluid flow confined at a stagnation point with an angled magnetic field and thermal radiation influences was recently studied numerically, according to Sabir et al 28 .…”

Application of heat transfer on MHD shear thickening fluid flow past a stretched surface with variable heat source/sink

“…The MHD micropolar stagnated liquid flow over a stretching sheet is illustrated by Nazar et al 21 The MHD oblique stagnated non‐Newtonian flow past a deforming surface with radiation is reported by Kumar et al 22 Nandy 23 examined the electrically conducting stagnated slip motion of a Casson liquid toward a stretchable surface. The nature of heat transport by using different shapes of nanoparticles on the MHD stagnation stream of Carreau fluid is highlighted by Sandeep and Ashwinkumar 24 . Sandeep et al 25 explored the deviation in the flow for the cases of Newtonian as well as non‐Newtonian liquids across the curved sheet in the attendance of chemical reaction.…”

“…The nature of heat transport by using different shapes of nanoparticles on the MHD stagnation stream of Carreau fluid is highlighted by Sandeep and Ashwinkumar. 24 Sandeep et al 25 explored the deviation in the flow for the cases of Newtonian as well as non-Newtonian liquids across the curved sheet in the attendance of chemical reaction.…”