Fractional Modeling and Exact Solutions to Analyze Thermal Performance of Fe3O4-MoS2-Water Hybrid Nanofluid Flow Over an Inclined Surface With Ramped Heating and Ramped Boundary Motion

Talha Anwar,Phatiphat Thounthong,Poom Kumam

doi:10.1109/access.2021.3051740

Abstract

The core determination of this article is to investigate the augmentation in the radiative heat transfer rate of Fe 3 O 4 -MoS 2 -H 2 O hybrid nanofluid specifying a flow over an inclined plate subject to ramped heating and heat generation/consumption effects. The flow of considered hybrid nanofluid is developed due to the ramped motion of the inclined plate that encounters the magnetic effects and immersed in a porous material. The fractional form of energy and momentum equations is obtained by employing the concept of the Atangana-Baleanu fractional derivative. Some unit-free quantities are introduced and the Laplace transform method is operated to construct the exact solutions of these equations. The noteworthy physical significance of involved parameters is discussed with the aid of graphical illustrations. To analyze the behavior of shear stress and heat transfer rate, numerical computations are tabulated in terms of skin friction coefficient and Nusselt number. All the figures and tables are prepared for both ramped and isothermal boundary conditions to highlight the impacts of the ramped heating condition and ramped motion of the inclined plate. It is observed that a water-based hybrid nanofluid that contains equal proportions of Fe 3 O 4 and MoS 2 nanoparticles exhibits an improvement of 6.14% in the heat transfer rate. The motion of hybrid nanofluid is retarded by fractional and inclination parameters, whereas the thermal radiation parameter serves as a flow supportive factor. Moreover, it is realized that ramping of the boundary surface and the fractional model are more effective for enhancing the heat transfer rate and limiting the shear stress. This result accentuates the significance of ramping technique in achieving a faster cooling rate and better flow control for various engineering applications.

Highlights

A nanofluid is one of the most effective functional strategies collectors, cooling of electronic components, thermal power utilized in heat transfer augmentation to serve the cause of plants, food dispensation, and engines/turbines
They compared the thermal performance of engine and kerosene oils and evaluated that MoS2 particles are more efficient in engine oil
Considering the electrical conductance of hybrid nanofluid, the magnetic effects of uniform strength M0 are employed normal to the plate that is dispersed in a porous medium

Summary

INTRODUCTION

A nanofluid is one of the most effective functional strategies collectors, cooling of electronic components, thermal power utilized in heat transfer augmentation to serve the cause of plants, food dispensation, and engines/turbines. Sundar et al [5] reported the effects of serving 0.8% volume proportion of Al2O3 and CuO nanoparticles to the mixture of ethylene glycol and water, which is considered as a host fluid They found 15.6% to 24.56% improvement in thermal conductivity of CuO based nanofluid and 9.8% to 17.9% for Al2O3 based nanofluid subject to temperature rise from 15 ◦C to 50 ◦C. Ho et al [20] performed an experimental investigation for a water-based hybrid nanofluid that contains particles of micro-encapsulated phase-change material and Al2O3 nanoparticles They observed perfect agreements between the computed data of the mass fraction and density, and that anticipated on the base of mixture principle. A detailed inspection of Nusselt number and skin friction coefficient is performed, and outcomes are discussed with the aid of several tables

PROBLEM STATEMENT AND MODELING

DYNAMIC VISCOSITY

ANALYTIC SOLUTIONS

RESULTS AND DISCUSSION

CONCLUSION