On the second solution of flow of viscoelastic fluid over a stretching sheet

Abstract

For the boundary layer flow of a viscoelastic fluid caused by the stretching of a sheet, it is demonstrated that, besides the well-known solution, a second solution exists for all nonzero values of k k , the viscoelastic fluid parameter. This solution is obtained in closed form. It exhibits an oscillatory behavior with the oscillations increasing as k k approaches the value zero.