Abstract
The effect of magnetic field on the three-dimensional flow of a nanofluid induced by exponentially stretching surface is studied. The fluid temperature is also assumed to be distributed exponentially. The problem is solved using two methods: The first one is numerical and the second is homotopy analysis method (HAM). The obtained results are compared with some previous studies in some limiting cases and found to be in a good agreement. The results reveal the roles that the nano-particle volume fraction and magnetic field strength play in the variation of both of the fluid temperature and velocity.