Fluid Flow and Turbulence Description in the Vicinity of Liquid/Liquid Interfaces

Campos, LC; Gardin, Pascal; Vincent, Stéphane; Caltagirone, J.-P.

doi:10.1007/978-3-319-60387-2_10

Cited by 1 publication

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vakhrushev et al (2014), Zhao et al (2017), and Zhao and Zhou (2019) report experiments for LES validation with a water and oil configuration but focus on the analysis of the interface deformation and open eye formation without further measurements of the flow field. Campos et al (2015) conducted point wise measurements at various distances to the liquid-liquid interface via LDA. André and Bardet (2015) extracted the interfacial shear stress of a free surface from simultaneous PIV measurements in the gas and liquid phase.…”

Section: Previous Experimental Workmentioning

confidence: 99%

Time-resolved PIV measurements of a deflected submerged jet interacting with liquid-gas and liquid-liquid interfaces

Puttinger

Saeedipour

2021

Exp. Comput. Multiph. Flow

View full text Add to dashboard Cite

This paper presents an experimental investigation on the interactions of a deflected submerged jet into a liquid pool with its above interface in the absence and presence of an additional lighter liquid. Whereas the former is a free surface flow, the latter mimics a situation of two stratified liquids where the liquid-liquid interface is disturbed by large-scale motions in the liquid pool. Such configurations are encountered in various industrial applications and, in most cases, it is of major interest to avoid the entrainment of droplets from the lighter liquid into the main flow. Therefore, it is important to understand the fluid dynamics in such configurations and to analyze the differences between the cases with and without the additional liquid layer. To study this problem, we applied time-resolved particle image velocimetry experiments with high spatial resolution. A detailed data analysis of a small layer beneath the interface shows that although the presence of an additional liquid layer stabilizes the oscillations of the submerged jet significantly, the amount of kinetic energy, enstrophy, and velocity fluctuations concentrated in the proximity of the interface is higher when the oil layer is present. In addition, we analyze the energy distribution across the eigenmodes of a proper orthogonal distribution and the distribution of strain and vortex dominated regions. As the main objective of this study, these high-resolution time-resolved experimental data provide a validation platform for the development of new models in the context of the volume of fluid-based large eddy simulation of turbulent two-phase flows.

show abstract