The velocity components of \(u\) and \(v\) of a two-dimensional flow are given by

\[ u=a x+\frac{b x}{x^{2} y^{2}} \quad \text { and } \quad v=a y+\frac{b y}{x^{2} y^{2}} \]

where \(a\) and \(b\) are constants. Calculate the acceleration.