Inviscid limits for the 3D Navier-Stokes equations with slip boundary   conditions and applications to the 3D Boussinesq equations
  In this note we consider the inviscid limit for the 3D Boussinesq equations without diffusion, under slip boundary conditions of Navier's type. We first study more closely the Navier-Stokes equations, to better understand the problem. The role of the initial data is also emphasized in connection with the vanishing viscosity limit. 
Luigi C. Berselli and Stefano Spirito
math.AP