Effect of Slip Conditions and Entropy Generation Analysis with an Effective Prandtl Number Model on a Nanofluid Flow through a Stretching Sheet

Abstract

This article describes the impact of slip conditions on nanofluid flow through a stretching sheet. Nanofluids are very helpful to enhance the convective heat transfer in a boundary layer flow. Prandtl number also play a major role in controlling the thermal and momentum boundary layers. For this purpose, we have considered a model for effective Prandtl number which is borrowed by means of experimental analysis on a nano boundary layer, steady, two-dimensional incompressible flow through a stretching sheet. We have considered γAl 2 O 3 -H 2 O and Al 2 O 3 -C 2 H 6 O 2 nanoparticles for the governing flow problem. An entropy generation analysis is also presented with the help of the second law of thermodynamics. A numerical technique known as Successive Taylor Series Linearization Method (STSLM) is used to solve the obtained governing nonlinear boundary layer equations. The numerical and graphical results are discussed for two cases i.e., (i) effective Prandtl number and (ii) without effective Prandtl number. From graphical results, it is observed that the velocity profile and temperature profile increases in the absence of effective Prandtl number while both expressions become larger in the presence of Prandtl number. Further, numerical comparison has been presented with previously published results to validate the current methodology and results.

A Novel Hybrid Model for Cu–Al2O3/H2O Nanofluid Flow and Heat Transfer in Convergent/Divergent Channels

“…Muhammad and colleagues [10] described three-dimensional (3D) nanofluid flow in the existence of convective flow conditions, while in two separate studies, Hayat and colleagues [11,12] discussed the flow of Maxwell nanofluids and influence of carbon nanotubes, respectively. Sheikholeslami et al (see [13][14][15]) discussed the flow of nanofluids in different geometries, while Bhatti et al [13] presented the impact of imposed Lorentz forces in flow behavior over a shrinking sheet. Meanwhile, Bhatti and colleagues [14] and Rashidi and Abbas [15] investigated the behavior of fluid temperature due to effective Prandtl number and provided an analytical analysis of drug delivery, respectively.…”

“…Sheikholeslami et al (see [13][14][15]) discussed the flow of nanofluids in different geometries, while Bhatti et al [13] presented the impact of imposed Lorentz forces in flow behavior over a shrinking sheet. Meanwhile, Bhatti and colleagues [14] and Rashidi and Abbas [15] investigated the behavior of fluid temperature due to effective Prandtl number and provided an analytical analysis of drug delivery, respectively. Additional studies [16][17][18][19][20][21][22][23][24][25][26][27][28][29] investigate flow and heat transfer enhancement in nanofluids and conventional fluids.…”

Entropy generation on MHD peristaltic flow of Cu‐water nanofluid with slip conditions

“…The entropy generation is confronted in numerous energy‐related appliances, for example, modern refrigerating devices, geothermic power, and terrestrial heat. Researchers have examined the irreversibility in system through different geometries …”

Statistical Analysis of the Mathematical Model of Entropy Generation of Magnetized Nanofluid

“…A comparison table between entropy generation and energy efficiency in natural convection has been analyzed by Pratibha and Tanway [45]. Some later works on entropy generation are [46][47][48][49][50].…”