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

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 Tc 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 ( R d : 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 ( k r : 0.01–100), Darcy parameter (Da: 10⁻¹\, to \,10⁻⁵) 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 , Rd R d , H* H ∗ and kᵣ 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 ε ε enhances the heat transfer of the fluid/solid phases.