An analysis is performed to investigate the structure of the boundary layer stagnation‐point flow and heat transfer of a fluid through a porous medium over a stretching sheet. A scaling group of transformations is applied to get the invariants. Using the invariants, a third and a second order ordinary differential equations corresponding to the momentum and energy equations are obtained respectively. The equations are then solved numerically. It is found that the horizontal velocity increases with the increasing value of the ratio of the free stream velocity (ax) and the stretching velocity (ax). The temperature decreases in this case. At a particular point of the stretching sheet, the fluid velocity decreases or increases with the increase of the permeability of the porous medium when the free stream velocity is less or grater than the stretching velocity.
Layek, G. C., Mukhopadhyay, S., & Samad, S. A. (2006). Scaling group of transformations for boundary layer stagnation‐point flow through a porous medium towards a heated stretching sheet. Mathematical Modelling and Analysis, 11(2), 187-197. https://doi.org/10.3846/13926292.2006.9637312
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