Vanishing viscosity limit for the compressible Navier-Stokes system via measure-valued solutions

We identify a class ofmeasure-valuedsolutions of the barotropic Euler system on a general (unbounded) spatial domain as a vanishing viscosity limit for the compressible Navier-Stokes system. Then we establish the weak (measure-valued)-strong uniqueness principle, and, as a corollary, we obtain strong convergence to the Euler system on the lifespan of the strong solution.