Modeling of non-equilibrium effects in intermittency region between two phases

by   Tomasz Wacławczyk, et al.

This paper concerns modeling of the evolution of intermittency region between two weakly miscible phases due to temporal and spatial variations of its characteristic length scale. First, the need of a more general description allowing for the evolution of intermittency region is rationalized. Afterwards, results of the previous work (Wacławczyk T., 2017, On a relation between the volume of fluid, level-set and phase field interface models, Int. J. Multiphas. Flow, Vol. 97) are discussed in context of the sharp interface models known in the literature and insight into droplet coalescence mechanism recently recognized in the molecular dynamics studies (Perumanath S., Borg M.K., Chubynsky M.V., Sprittles J.E., Reese J.M., 2019, Droplet coalescence is initiated by thermal motion, Phys. Rev. Lett., Vol. 122). Finally, the physical and numerical models extending applicability of the equilibrium solution to the case when intermittency region could also be in the non-equilibrium state is introduced and verified in several test cases.



page 25

page 29

page 30


Diffuse interface relaxation model for two-phase compressible flows with diffusion processes

The paper addresses a two-temperature model for simulating compressible ...

A volume of fluid framework for interface-resolved simulations of vaporizing liquid-gas flows

This work demonstrates a computational framework for simulating vaporizi...

Morphological stability of three-dimensional cementite rods in polycrystalline system: A phase-field analysis

Transformations accompanying shape-instability govern the morphological ...

A Molecular-Continuum Multiscale Model for Inviscid Liquid-Vapor Flow with Sharp Interfaces

The dynamics of compressible liquid-vapor flow depends sensitively on th...

Analysis and application of a lower envelope method for sharp-interface multiphase problems

We introduce and analyze a lower envelope method (LEM) for the tracking ...

DropletSMOKE++: a comprehensive multiphase CFD framework for the evaporation of multidimensional fuel droplets

This paper aims at presenting the DropletSMOKE++ solver, a comprehensive...

Temporal Phase Shifts in SCADA Networks

In Industrial Control Systems (ICS/SCADA), machine to machine data traff...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.