Magnetohydrodynamic Thin Film Flow through a Porous Stretching Sheet with the Impact of Thermal Radiation and Viscous Dissipation

Table 1

Dimensionless groups.

Group	Symbol	Definition	Physical interpretation
Local Nusselt number			Basic dimensionless convective heat transfer coefficient (ratio of convective heat transfer to conduction in a fluid slab of thickness h)
Local Reynolds number			The ratio of inertia to viscous forces
Eckert number	Ec		The kinetic energy of the flow relative to the boundary layer's enthalpy difference
Prandtl number			The ratio of kinematic viscosity () to thermal conductivity (k)
Skin friction			Dimensionless surface shear stress