@inbook{9ca9ac4b240e4e34a464ac7f69ab983e,
title = "A dual-scale approach for modeling turbulent liquid/gas phase interfaces",
abstract = "Advances to a dual-scale modeling approach [1] are presented to describe turbulent phase interface dynamics in a large-eddy-simulation-type spatial filtering context. Spatial filtering of the governing equations introduces several sub-filter terms that require modeling. Instead of developing individual closure-models for the terms associated with the interface, the dual-scale approach uses an exact closure by explicitly filtering a fully resolved realization of the phase interface. This resolved realization is maintained on a high-resolution over-set mesh. The advection equation for the phase interface on this DNS scale requires a model for the fully resolved interface advection velocity. This velocity is the sum of the filter scale LES velocity, available from the LES flow solver, and the sub-filter velocity fluctuation. The sub-filter velocity fluctuation is due to sub-filter turbulent eddies, reconstructed using a local fractal interpolation technique [2]. Results of the dual-scale model are compared to recent DNS of unit density and viscosity contrast interfaces in homogeneous isotropic turbulence without surface tension [3].",
author = "Dominic Kedelty and James Uglietta and Marcus Herrmann",
note = "Funding Information: The support of NASA TTT grant NNX16AB07A is gratefully acknowledged. Publisher Copyright: {\textcopyright} Springer Nature Switzerland AG 2019.",
year = "2019",
doi = "10.1007/978-3-030-12547-9_27",
language = "English (US)",
series = "ERCOFTAC Series",
publisher = "Springer",
pages = "257--264",
booktitle = "ERCOFTAC Series",
}