In this paper, we consider the 2D second grade fluid past an obstacle satisfying standard non-slip boundary condition at surface of obstacle. Second model is a well-known non-Newtonian model, with two parameters: $\alpha$ representing length-scale, while $\nu > 0$ corresponding to viscosity. We prove that, under constraint = {o}(\alpha^\frac{4}{3})$, suitable initial velocity converges Euler as...