Dynamics of ethylene glycol-based graphene and molybdenum disulfide hybrid nanofluid over a stretchable surface with slip conditions

Syed M Hussain

doi:10.1038/s41598-022-05703-z

Abstract

In this research study, numerical and statistical explorations are accomplished to capture the flow features of the dynamics of ethylene glycol-based hybrid nanofluid flow over an exponentially stretchable sheet with velocity and thermal slip conditions. Physical insight of viscous dissipation, heat absorption and thermal radiation on the flow-field is scrutinized by dissolving the nanoparticles of molybdenum disulfide (MoS2) and graphene into ethylene glycol. The governing mathematical model is transformed into the system of similarity equations by utilizing the apt similarity variables. The numerical solution of resulting similarity equations with associated conditions are obtained employing three-stages Lobatto-IIIa-bvp4c-solver based on a finite difference scheme in MATLAB. The effects of emerging flow parameters on the flow-field are enumerated through various graphical and tabulated results. Additionally, to comprehend the connection between heat transport rate and emerging flow parameters, a quadratic regression approximation analysis on the numerical entities of local Nusselt numbers and skin friction coefficients is accomplished. The findings disclose that the suction and thermal radiation have an adverse influence on the skin friction coefficients and heat transport rate. Further, a slight augmentation in the thermal slip factor causes a considerable variation in the heat transport rate in comparison to the radiation effect.

Highlights

In this research study, numerical and statistical explorations are accomplished to capture the flow features of the dynamics of ethylene glycol-based hybrid nanofluid flow over an exponentially stretchable sheet with velocity and thermal slip conditions
The effects of emerging physical parameters on the dynamics of ethylene glycol-based hybrid nanofluid flow containing graphene and MoS2 nanoparticles over an exponentially stretchable sheet with and without velocity slip conditions are captured through graphical results and tables
The default values of temperature distribution parameter and Prandtl number are respectively fixed as a = 2, X = 1.5 and Pr = 2.0363(for ethylene glycol base fluid) while other regulatory flow parameters such as magnetic parameter (M), angle of aligned magnetic field (α), Eckert number (Ec), injection/suction (S), heat absorption parameter (Ha), velocity slip parameter (L), radiation parameter (Tr) and thermal slip parameter (D) are considered to be varied to capture their significance on the flow field and heat transfer features

Summary

Introduction

Numerical and statistical explorations are accomplished to capture the flow features of the dynamics of ethylene glycol-based hybrid nanofluid flow over an exponentially stretchable sheet with velocity and thermal slip conditions.

Results

Conclusion