Volume fraction gradient-induced flow patterns in a two-liquid phase mixing layer

Abstract

This paper presents experimental and numerical results related to the dynamic behavior of a two-liquid phase mixing layer induced by a gradient of phase fraction at the ow inlet. A particle image velocimetry-based technique has been used together with a refractive index matching method in order to measure the volume phase fraction and the continuous phase velocity in the two-dimensional (2D) ow. The analysis of experimental results reveals the strong unsteady feature of the ow and the development of large-scale coherent structures. Experimental data have been compared to numerical simulations obtained using both a two-uid model and a single-uid mixture model (where only the density di erence is accounted for). The similarities and discrepancies between numerical and experimental results provide an understanding of the relative importance of variable density e ects compared to the two-phase interfacial exchanges in the momentum and the turbulent transport.

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BibTeX RIS

BibTeX

@article{augier2026volume,
  title = {{Volume fraction gradient-induced flow patterns in a two-liquid phase mixing layer}},
  author = {Frédéric Augier and Jérôme Morchain and P. Guiraud and Olivier Masbernat},
  journal = {Chemical Engineering Science},
  year = {2026},
  month = oct,
  doi = {10.1016/s0009-2509(03)00267-7},
  url = {https://hal.science/hal-05801934v1},
  note = {CC BY 4.0},
}

RIS

TY  - JOUR
TI  - Volume fraction gradient-induced flow patterns in a two-liquid phase mixing layer
AU  - Frédéric Augier
AU  - Jérôme Morchain
AU  - P. Guiraud
AU  - Olivier Masbernat
PY  - 2026
DA  - 2026/10/16
JO  - Chemical Engineering Science
DO  - 10.1016/s0009-2509(03)00267-7
UR  - https://hal.science/hal-05801934v1
AB  - This paper presents experimental and numerical results related to the dynamic behavior of a two-liquid phase mixing layer induced by a gradient of phase fraction at the ow inlet. A particle image velocimetry-based technique has been used together with a refractive index matching method in order to measure the volume phase fraction and the continuous phase velocity in the two-dimensional (2D) ow. The analysis of experimental results reveals the strong unsteady feature of the ow and the development of large-scale coherent structures. Experimental data have been compared to numerical simulations obtained using both a two-uid model and a single-uid mixture model (where only the density di erence is accounted for). The similarities and discrepancies between numerical and experimental results provide an understanding of the relative importance of variable density e ects compared to the two-phase interfacial exchanges in the momentum and the turbulent transport.
SN  - 0009-2509
SN  - 1873-4405
ER  -

Abstract

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