Analysis of the impact of physical parameters on a water‐based Al₂O₃ nanofluid using the KKL model

Abstract

A nanofluid is treated as a smart fluid that is useful for heat transfer enhancement, which is paramount in several industrial applications, transportation, biomedical as well as electronics. This is due to the enhanced thermophysical properties, such as Brownian motion and thermal conductivity of the suspended nanoparticles in the base fluid. The present investigation explores an electrically conducting flow of a water‐based nanofluid past a thin film placed horizontally. In particular, the Al2O3 nanoparticle is merged into the water for the preparation of the nanofluid. For the enhancement in heat transfer properties, the Brownian thermal conductivity based on the Koo‐Kleinstreuer‐Li model is introduced. The Adomian decomposition method, a semi‐analytical technique, is employed to handle the system of ordinary differential equations. The originality of the current investigation is the statistical analysis of the various characterizing parameters governing the flow phenomena. The influences of these physical parameters on the flow phenomena are displayed in graphs and tables. The major findings of the outcomes are listed as follows: an increase in particle diameter decreases the Brownian conductivity, whereas fluid temperature enhances it significantly. Also, the increase in volume concentration leads to a decrease in the fluid temperature, resulting in faster cooling processes for the production of materials in industries.

KKL correlation for simulation of nanofluid flow over a stretching sheet considering magnetic dipole and chemical reaction

“…where, we have equated coefficients of equal powers of 𝜉 up to 𝜉 2 . The boundary conditions (5) become…”

“…Hayat et al [4] expounded the nanoliquid flow over an extending sheet by using Buongiorno model. Nayak and Mishra [5] elucidated the heat transfer in water based nanoliquid flow by using KKL model. In past decades, some models have been established to emulate the thermophysical properties of nanofluids.…”