Inviscid Limit for Vortex Patches in A Bounded Domain

In this paper, we consider the inviscid limit of the incompressible Navier-Stokes equations in a smooth, bounded and simply connected domain $\mathrm{\Omega }\subset {\mathbb{R}}^d,d=2,3$. We prove that for a vortex patch initial data the weak Leray solutions of the incompressible Navier-Stokes equations with Navier boundary conditions will converge (locally in time for $d=3$ and globally in time for $d=2$) to a vortex patch solution of the incompressible Euler equation as the viscosity vanishes. In view of the results obtained in [1] and [19] which dealt with the case of the whole space, we derive an almost optimal convergence rate $(\nu t{)}^{\frac{3}{4}-\epsilon }$ for any small $\epsilon >0$ in $L^2$.