The Investigation of MHD Williamson Nanofluid over Stretching Cylinder with the Effect of Activation Energy

Figure 15

The graph of concentration for different values of Brownian motion (Nb), thermophoresis parameter (Nt), Schmidt number , and temperature difference parameter (); the velocity declines with an increase of the magnetic field parameter. From (b, c), it can be seen that the temperature and concentration upsurge with an increase of the magnetic field parameter (). The physical meaning of this behavior is an upsurge in the values of the magnetic field parameter develops the force opposite to the flow, which is known as Lorentz force. This body force reduced the boundary layer flow and congeals the velocity boundary layers. Furthermore, this force creates a resistance force that opposes the fluid motion. Therefore, for the higher magnetic field, heat is generated leading to a boost in the temperature and thermal boundary layer thickness.

(a)

(b)

(c)

(d)