*4.2. Impact of Variation on*

Software MATLAB is used to interpret the AE analysis plots and the solution plots to examine the variation of *β*1, *β*2, *α* and *Nt* on the concentration profile. Figure 11 depicts the solution and AE analysis plots for the concentration profile by the variation of Prandtl fluid number, flexible number, ratio parameter and thermophoresis number. It can be easily seen that Prandtl fluid number, flexible number and ratio parameter have the same impact on the concentration profile, but thermophoresis number has the opposite effect, which is an upsurge in the trend of concentration distribution. The absolute error values for the following variations are 10−<sup>8</sup> to 10−3, 10−<sup>7</sup> to 10−3, 10−<sup>7</sup> to 10−<sup>3</sup> and 10−<sup>8</sup> to 10−3, respectively.

One may witness that:

