Computational examination of Casson nanofluid due to a non‐linear stretching sheet subjected to particle shape factor: Tiwari and Das model

Abstract

In this research, heat transfer along with entropy of an unsteady non-Newtonian Casson nanofluid flow is studied. The fluid is positioned over a stretched flat surface moving non-uniformly. The nanofluid is analyzed for its flow and heat transport properties by subjecting it to a slippery surface, which is convectively heated. The governing mathematical equations describing the physical characteristics of Casson nanofluid flow as well as heat transfer models are abridged under boundary layer flow assumptions and Roseland approximations. Governing equations of flow problem are formulated in partial differential equations. A computative technique, Keller box accustomed to find the self-similar solution of equations that converted into ordinary differential equations (ODEs) by using proper transformations. Two different classes of nanofluids, copper-methanol (Cu-MeOH) and titanium-methanol (TiO 2 -MeOH) are considered for our analysis. Significant results of various parameters in flow, heat, skin friction, Nusselt number and entropy analysis are elaborate graphically. The remarkable finding of this work is that the Cu-MeOH nanofluid is better transfer source as compared to TiO 2 -MeOH nanofluid.

RETRACTED ARTICLE: A numerical study of chemical reaction in a nanofluid flow due to rotating disk in the presence of magnetic field

“…The percentage accuracy between the present results and the Ishak et al 44 results are given as 0.02001113, 0, 0.00653948, 0.02755298, 0.00391610, and the percentage accuracy of Ishak et al 45 results and the present results are 0.02001113, 0, 0.00134124, 0.02755298, 0.53921769, when we fix up the nanoparticles concentration , heat generation/absorption parameter , disk thickness index , dimensionless constant parameter , Hall current parameter , Forchheimer parameter , local Grashof number , power law exponent of fluid and porosity parameter . For the same fixed values of parameters, the percentage accuracy between present results and Jamshed et al 48 and Jamshed 49 results are 0, 0, 0, 0, 0, which means that present results show 100 percent accuracy.…”

A numerical frame work of magnetically driven Powell-Eyring nanofluid using single phase model

“… , , and are the density, specific heat capacity, the thermal and electrically conducting of the nano-solid particles. Table 2 presents empirical shape factor values in the case of distinguished particle shapes (see for example 52 , 53 ).…”

Entropy Optimization of First-Grade Viscoelastic Nanofluid Flow over a Stretching Sheet by Using Classical Keller-Box Scheme

“…Cu nanofluid showed better performance in transferring than TiO 2 nanoparticles. Kotha et al [19] conducted the same study with Jamshed et al [18], considering the magnetic field. Entropy generation was found to amend by augmenting velocity parameter, while Bejan number diminished by that.…”

“…Also, they claimed that alteration in Prandtl and Reynolds numbers significantly changes the entropy through the system. Jamshed et al [18] a stretching sheet exposed to a Casson nanofluid (Cu and TiO 2 based on methanol) which ODEs solved by Keller-Box method. Cu nanofluid showed better performance in transferring than TiO 2 nanoparticles.…”