Morón, Daniel; Cannon, Ianto; Vela-Martín, Alberto; Avila, Marc: Direct numerical simulations of drop breakup in turbulent flows and decomposition of the turbulence induced straining [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.994057 (dataset in review)
Abstract:
We investigate drop breakup in turbulent flows of two immiscible fluids. We use the decomposition proposed by Vela-Martín & Avila JFM 2021 to separate the turbulent flow in two regions: the outer region (outside the drop and its boundary layer) and the inner region (inside the drop and its boundary layer). Leveraging an extensive database of single-drop simulations, we perform temporal correlation analyses to show that the straining induced by the outer region is statistically independent of the drop dynamics, whereas the inner region responds to drop deformation and, on average, acts as an energy dissipator. Drawing from these observations, we derive a simple analytical model that returns the breakup rate with high accuracy. Our results prove that, to correctly model the deformation and breakup of drops in turbulent flows, one only needs to know the statistical characteristics of the outer field. We show a clear link between the inherent intermittency of turbulent flows and the memory-less breakup of drops with large surface tensions. In this database we include the code used to perform the ensembles of simulations at different Weber numbers and the main results of those simulations. We also include the Matlab codes used to postprocess the results and generate the figures of the related publication. The Weber number indicated in the name of the folders and files (Wef), also used in the code, must be corrected to obtain the actual one. Specifically, We=0.36*Wef. The Weber numbers Wef are writtem as: We_XY or We_XYZ where Wef=X*10 + Y*1 + Z*0.1
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Morón, Daniel | Numerical simulated | ||
| 2 | Binary Object (File Size) | Binary (Size) | Bytes | Morón, Daniel | Numerical simulated | |
| 3 | Title | Title | Morón, Daniel | Numerical simulated | ||
| 4 | File name | File name | Morón, Daniel | Numerical simulated | ||
| 5 | Description | Description | Morón, Daniel | Numerical simulated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
16 data points