Table 4 Comparison of the SRM results of $\mathbf{-}{\mathit{f}}^{\mathbf{″}}\mathbf{(}\mathbf{0}\mathbf{)}$, $\mathbf{-}\mathit{\theta }\mathbf{(}\mathbf{0}\mathbf{)}$, $\mathbf{-}\mathit{\varphi }\mathbf{(}\mathbf{0}\mathbf{)}$ with those obtained in [20] for different values of the porosity parameter

$\mathbf{-}{\mathit{f}}^{\mathbf{″}}\mathbf{(}\mathbf{0}\mathbf{)}$

$\mathbf{-}{\mathit{\theta }}^{\mathbf{\prime }}\mathbf{(}\mathbf{0}\mathbf{)}$

$\mathbf{-}{\mathit{\varphi }}^{\mathbf{\prime }}\mathbf{(}\mathbf{0}\mathbf{)}$