Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equations for the description of warm atomic gases in the presence of ionization processes. The specific heat is predicted to exhibit peaks in correspondence to single and multiple ionizations. Such kinetic analog in atomic gases of the Schottky anomaly in solids is enhanced at intermediate and low atom...

The evolution of a gas can be described by different mathematical models depending on the scale observation. A natural question, raised Hilbert in his sixth problem, is whether these provide mutually consistent predictions. In particular, for rarefied gases, it expected that equations kinetic theory gases obtained from molecular dynamics governed fundamental principles mechanics. case hard sphe...

by considering the fact that the surface tension of a real fluid arises from a combination of both repulsive and attractive forces between molecules, a new expression for the interfacial tension has been derived from scaled particle theory (spt)  based on the work of cavity formation and the interaction energy between molecules. at the critical temperature, the interfacial tension between coexi...

A system of non-Markovian transport equations is obtained for the non-equilibrium one-particle distribution function particles and average value density potential energy interaction far from equilibrium state. Expressions entropy, partition state system, as well thermodynamic relations were obtained. The generalized structure transfer nuclei revealed in detail with selection short-range long-ra...

We investigate coherent Rayleigh-Brillouin spectroscopy as an efficient process to measure the bulk viscosity of gases at gigahertz frequencies. Scattered spectral distributions are measured using a Fizeau spectrometer. We discuss the statistical error due to the fluctuating mode structure of the used pump laser. Experiments were done for both polar and nonpolar gases and the bulk viscosity was...

A novel computational fluid dynamics and molecular kinetic theory (CFD-MK) method was developed to simulate the impingement of a nanodroplet onto a solid surface. A numerical solution of the Navier–Stokes equation using a volume-of-fluid (VOF) technique was used to model nanodroplet deformation. Dynamic contact angle during droplet impact was obtained by molecular kinetic theory. This dynamic c...