... viscosity shear flow stagnation flow time-dependent rotation time-dependent heat transfer transpiration exact solution The problem of finding exact solutions of the Navier-Stokes equations is a very difficult task. This is primarily due to the fact that these equations are nonlinear...

... in the form of a step-function, and a ramp function are presented for different values of flow parameters. The effects of cylinder movement with time-dependent axial velocity, and time-dependent heat transfer in general, specially with different types of harmonic oscillation which are of interest...