Work

Natural convection in two different enclosures filled with nanohybrid under magnetic field: Application to heat exchanger

Year: 2024

Type: article

Abstract: The current numerical work examines the thermal energy transport controlled by MHD buoyancy inside two distinct enclosure shapes filled with water-Ag-MgO nanohybrids. The outer wall of the enclosure is designed to be frigid, but the inner spaces are heated continuously. To do this, we used COMSOL Multiphysics to develop a 2-D code that solved the equations related mass, momentum, and energy. When the Prandtl number is assumed to be Pr = 6.58, the impact of relevant parameters such as Rayleigh number between 103 and 106, Hartmann number between 0 and 120, and the solid volume fraction of the nanohybrid on the flow and heat transfer performance of the enclosure are investigated after the validation of the numerical code. It is obtained that the average Nusselt number is a function of and increases with solid volume fraction of the nanohybrid. Furthermore, the average Nusselt number drops with Hartmann number, with the effect being more pronounced for higher Rayleigh values.

Source: Thermal Science

DOI: 10.2298/tsci240109189a

Authors: Raouia Azzouz, Mohamed Ben Hamida

Institutions: University of Monastir, Institut Préparatoire aux Études d'Ingénieurs de Monastir, Imam Mohammad ibn Saud Islamic University, University of Sousse

Language: English

Topic: Nanofluid Flow and Heat Transfer

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $161

OpenAlex ID: W4402009299

FWCI: 0.852

Cites: 29

Cited by: 8

Related to: 10