Singular limit for the compressible Navier--Stokes equations with the hard sphere pressure law on expanding domains
arXiv:2204.01149 · doi:10.1007/s00021-022-00750-y
Abstract
The article is devoted to the asymptotic limit of the compressible Navier-Stokes system with a pressure obeying a hard--sphere equation of state on a domain expanding to the whole physical space . Under the assumptions that acoustic waves generated in the case of ill-prepared data do not reach the boundary of the expanding domain in the given time interval and a certain relation between the Reynolds and Mach numbers and the radius of the expanding domain, we prove that the target system is the incompressible Euler system on . We also provide an estimate of the rate of convergence expressed in terms of characteristic numbers and the radius of domains.