Two-phase nanofluid model and magnetic field effects on mixed convection in a lid-driven cavity containing heated triangular wall

Abstract

The current numerical study looked into the magneto-hydrodynamics mixed convection of nanofluid in a lid-driven square cavity subjected to heating by a triangular thick wall. The nanofluid heat transfer was modelled by using a two-phase Buongiorno model, whereas obtaining a numerical solution for the governing equations was described using the finite element method. Comparisons made between the proposed method and the experimental and numerical works published prior revealed outcomes of good agreement. An in-depth investigation and discourse on the influences of certain attributes such as Reynolds number, Richardson number, Hartmann number, nanofluid volume fraction, and triangular wall thickness on overall heat transfer and nanoparticle distribution were subsequently put forth. The outcomes revealed the CW rotations for streamlines and nanoparticle migration. Additionally, incremental thermophoresis and Brownian motion resulted in expanding Hartmann number growth, thus yielding increased nanoparticle migration. Keywords: Magneto-hydrodynamics, Mixed convection, Thermophoresis and Brownian, Lid-driven, Triangular thick wall, Buongiorno model