A molecular–continuum multiscale model for inviscid liquid–vapor flow with sharp interfaces

The dynamics of compressible liquid-vapor flow depends sensitively on the microscale behavior at phase boundary. We consider a sharp-interface approach, and propose multiscale model to describe accurately, without imposing ad-hoc closure relations continuum scale. combines Euler equations scale with molecular-scale particle simulations that govern interface motion. rely an interface-preserving moving mesh finite volume method discretize continuum-scale in conservative manner. Computational efficiency, while preserving physical properties, is achieved by surrogate solver for based constraint-aware neural networks. presented its general form, applied regimes temperature-dependent which have not been accessible before.