Our goals, methods, unsolved key issues, and technological applications are summarized in the upper figure. We focus on fluid fields with molecules, which contain heterogeneous boundaries and are different from the bulk, in a unified manner as a confined nanospace problem. Both theoretical and experimental researches have been carried out to elucidate novel phenomena of molecular flow dynamics with respect to physicochemical aspects and life, functioning under specific boundary conditions and constraints.

The lower figure presents theoretical background of molecular fluid mechanics. We are studying multi-scale and multi-physics problems with considerable accuracy in the self-consistent field based on Navier–Stokes equation for fluids, Boltzmann equation for molecules, and Schrödinger equation for quanta. 2