摘要

This paper is concerned with the combined incompressible limit and semiclassical limit of the weak solutions to the barotropic quantum Navier-Stokes equations of compressible flows. By using the relative entropy method, we show that for well-prepared initial data, the weak solutions of the compressible quantum Navier-Stokes model converge to the strong solution of the incompressible Navier-Stokes equations as long as the latter exists. Furthermore, the convergence rates are also obtained.