MHD mixed convection of hybrid nanofluid in a wavy porous cavity employing local thermal non-equilibrium condition

Abstract

The current study treats the magnetic field impacts on the mixed convection flow within an undulating cavity filled by hybrid nanofluids and porous media. The local thermal non-equilibrium condition below the implications of heat generation and thermal radiation is conducted. The corrugated vertical walls of an involved cavity have $${T}_{c}$$ T c and the plane walls are adiabatic. The heated part is put in the bottom wall and the left-top walls have lid velocities. The controlling dimensionless equations are numerically solved by the finite volume method through the SIMPLE technique. The varied parameters are scaled as a partial heat length (B: 0.2 to 0.8), heat generation/absorption coefficient (Q: − 2 to 2), thermal radiation parameter (Rd: 0–5), Hartmann number (Ha: 0–50), the porosity parameter (ε: 0.4–0.9), inter-phase heat transfer coefficient (H*: 0–5000), the volume fraction of a hybrid nanofluid (ϕ: 0–0.1), modified conductivity ratio (kr: 0.01–100), Darcy parameter $$\left(Da: 1{0}^{-1}\,\mathrm{ to }\,1{0}^{-5}\right)$$ D a : 1 0 - 1 to 1 0 - 5 , and the position of a heat source (D: 0.3–0.7). The major findings reveal that the length and position of the heater are effective in improving the nanofluid movements and heat transfer within a wavy cavity. The isotherms of a solid part are significantly altered by the variations on $$Q$$ Q , $${R}_{d}$$ R d , $${H}^{*}$$ H ∗ and $${k}_{r}$$ k r . Increasing the heat generation/absorption coefficient and thermal radiation parameter is improving the isotherms of a solid phase. Expanding in the porous parameter $$\varepsilon$$ ε enhances the heat transfer of the fluid/solid phases.

Numerical analysis of local thermal non-equilibrium free convection in a porous enclosure with a wavy cold side wall

“…Also, Alsabery et al 25 investigated the non-Darcian effect on natural convection in a wavy cavity; their investigation is primarily focused on local thermal non-equilibrium conditions. Raizah et al 26 focus on the impact of a magnetic field on the free convection of a hybrid nanofluid in a wavy porous enclosure under an LTNE condition. The properties of heat transmission and nanofluid motions inside an undulating cavity are efficiently adjusted by the length and position of the partial heat.…”

Impact of a closed-space rectangular heated source on MHD mixed convection flows into a lid-driven cavity with a heated wavy bottom surface in presence of internal heat generation or absorption.

“…Furthermore, decreased internal heat generation /absorption parameters increase horizontal and vertical velocities. Raizahet al [15] investigated magneto-hydrodynamics hybrid convection of conjugate nanofluid in a alveolar waved cavity utilizing local fervent nonequilibrium circumstances. Oglakkayaet al [16] studied the flow of irregular MHD hybrid convection within a lid-driven waved enclosure with a heated surface.…”

“…Overall,all of the above research can be classified into three categories. The first set focuses on MHD mixed and natural convection [9][10][11][12][13][14][15][16][17][18][19] within a square wavy cavity, the second set deals with MHD mixed and natural convection within a square wavy cavity having fins [20][21][22][23][24], and the third on MHD mixed and natural convection with heat generation or absorption [25][26][27][28][29][30][31][32]. Effects of Electromagnetic fields on plasma and Hall currents on viscoelastic fluid have been studied [40][41][42] with nonlinear heat and mass transfer.…”

Numerical Computations of Entropy Generation and MHD Ferrofluid Filled in a Closed Wavy Configuration: Finite Element Based Study

“…Within the sight of an isothermally heated corner, a numerical investigation of MHD natural convection in a wavy open permeable tall cavity loaded up with a Cu-water nanofluid was researched by [12]. [13] used local thermal non-equilibrium conditions to investigate magnetize hybrid nanomaterial in a wavy porous media. [14] implemented a finite volume approach to analyze the magnetohydrodynamic non-Newtonian ferrofluid to better understand the properties of heat transfer in a duct.…”