Impact of wavy porous layer on mixed convection flow of a hybrid nanofluid in an enclosure under the effect of partial magnetic field


Hussain S., Qureshi M. A., Geridönmez B.

Numerical Heat Transfer; Part A: Applications, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2023
  • Doi Number: 10.1080/10407782.2023.2233144
  • Journal Name: Numerical Heat Transfer; Part A: Applications
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Galerkin finite element method, hybrid nanofluid, partial magnetic field, porous layer, square cavity
  • TED University Affiliated: Yes

Abstract

In this article, the effects of partial magnetic field and wavy porous layer on the characteristics of fluid flow and heat transfer are explored. The system of governing partial differential equations in dimensionless form is computed using the Galerkin based finite element method together for various range of parameters. The obtained discrete system of nonlinear algebraic equations is handled with Newton’s method and related linearized subproblems are solved by geometric multigrid techniques. The impact of involved parameters such as Richardson (Ri) number, Hartmann (Ha) number, porous layer parameters as amplitude (A) of waviness or the number of undulations ((Formula presented.)) or the thickness (Hp) of the porous layer, inclination angle of partial magnetic field (γ), and Darcy (Da) number on the dynamics of fluid and heat are investigated in detail. Moreover, the computational analysis has been demonstrated using streamlines, isotherms, and plots as well as average Nusselt number ((Formula presented.)) along the hot vertical left wall and average kinetic energy in the entire domain. It is observed that (Formula presented.) is an increasing function of (Formula presented.) and Da while it is a decreasing function of (Formula presented.) (Formula presented.) also increases at Ha = 100 as 57.3%, which is the highest increase comparing to smaller Ha values, when Ri changes from 0.1 to 10, and significantly decreases at an angle (Formula presented.) at (Formula presented.) (Formula presented.) also rises for (Formula presented.) as Ri rises.