Boundary conditions 1 Casson fluids 1 Finite Difference Method 1 Finite difference method 1 Finite-difference methods 1 Fluid-flow 1 Heat transfer 1 Heat transfer analysis 1 Homotopies 1 Homotopy Perturbation method Homotopy perturbation method 1 Incompressible flow 1 Linear transformations 1 Magnetic effects 1 Magnetohydrodynamics 1 Navier Stokes equations 1 Navier-Stokes equation 1 Navier-Stokes equations 1 Non-linear differential equations 1 Nonlinear differential equation 1 Perturbation method 1 Perturbation techniques 1 Porous materials 1 Porous plates 1 Viscous flow 1