Hybrid nanofluid flow with multiple slips over a permeable stretching/shrinking sheet embedded in a porous medium

• Main Authors: Yahaya, Rusya Iryanti, Md Arifin, Norihan, Md Ali, Fadzilah, Mohamed Isa, Siti Suzilliana Putri
• Format: Article
• Published: Semarak Ilmu Publishing 2023
• Online Access: http://psasir.upm.edu.my/id/eprint/108224/; https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/1233

Including slip boundary conditions in the study involving the flow of foams, emulsions, polymer solutions, and suspensions over moving surfaces are crucial for real-life applications. The current study analysed the multiple slips effects on the magnetohydrodynamics (MHD) flow of Ag-CuO/water hybrid nanofluid past a permeable stretching/shrinking sheet embedded in a porous medium. Appropriate similarity variables are introduced for transforming the governing equations and boundary conditions into ordinary differential equations before being solved using the bvp4c solver. Dual solutions are yielded from the numerical computation of flow over a shrinking sheet, and the first solution is identified as stable through a stability analysis. It is found that the imposition of velocity, thermal, and mass slips promotes the reduction of momentum, thermal, and concentration boundary layer thickness, respectively. The hybrid nanofluid around the sheet is observed to flow at a different velocity from the sheet due to the imposition of velocity slip. Thermal and mass slips, meanwhile, obstruct the flow's ability to transport heat and mass. An increased suction parameter, however, can aid in enhancing the rates of heat and mass transfers.