Work

Entropy generation and heat transfer rate for MHD forced convection of nanoliquid in presence of viscous dissipation term

Year: 2023

Type: article

Abstract: In this paper, magnetohydrodynamic laminar forced convection of nanoliquid in a rectangular channel with an extended surface, top moving wall and three cylindrical blocks is numerically studied. The Lattice Boltzmann method is used for the resolution of the governing equations. Validity of the numerical home elaborated FORTRAN code was made and good agreement was found with published results. It is interspersed in this work by the effects of the following parameters: Reynolds number (50≤Re≤200), Hartmann number (0≤Ha≤50), nanoparticles volume fraction (0≤φ≤4%) and Eckert number (0.25≤Ec≤1). The numerical solution shows that the local and average Nusselt numbers ameliorate when the value of Reynolds number, Eckert number, and the nanoparticles volume fraction are enhanced. But decreases when the Hartmann number is increased. The impacts of viscous dissipation on heat transfer rate and entropy generation are more noticeable in the presence of a magnetic field. The addition of 4% of nanoparticles enhances the local Nusselt number by about 7%.

Source: CFD letters

DOI: 10.37934/cfdl.15.12.77106

Authors: Rached Miri, Bouchmel Mliki, Barhm Abdullah Mohamad, Mohamed Ammar Abbassi, Souad Abderafi

Institutions: University of Gafsa, Erbil Polytechnic University, Mohammed V University, Ecole Mohammadia d'Ingénieurs

Language: English

Topic: Nanofluid Flow and Heat Transfer

Subfield: Fluid Flow and Transfer Processes

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4388095412

FWCI: 0.547

Cites: 45

Cited by: 7

Related to: 10