Work

Natural convection characteristics of a reacting nanofluid with variable properties in a porous and fluid layered cavity

Year: 2025

Type: article

Abstract: This study analyzes the natural convection characteristics of a chemically reacting nanofluid in a partitioned cavity considering variable thermophysical properties of the nanofluid and an inclined magnetic field. Defining suitable variable transformations, the governing equations are reduced to a set of nondimensional equations which are solved numerically using the finite difference method. For higher Rayleigh number, the flow intensity and remaining oxidizer concentration are found to increase; however, the maximum temperature diminishes. Moreover, the magnitude of the stream function and maximum temperature are found to increase, and the remaining amount of oxidizer decreases for increasing Frank-Kamenetskii number, and Hartmann number. But the opposite is noticed for the increase of the porous layer thickness. As the volume fraction of nanoparticles increases, the maximum temperature first increases and then decreases, while the converse scenario is observed for the magnitude of flow circulation in the fluid layer.

Source: Thermal Science and Engineering Progress

DOI: 10.1016/j.tsep.2025.104147

Author: Nepal Chandra Roy

Institution: University of Dhaka

Language: English

Topic: Nanofluid Flow and Heat Transfer

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,000

Funder: Ministry of Education, Government of the People's Republic of Bangladesh