This dataset contains the numerical data of the Marangoni convection test case from the study "Visual Analysis of Interface Deformation in Multiphase Flow". In the two investigated scenarios, a water drop coalesce with an ethanol drop. In one case, solutocapillary driven flow phenomena are taken into account, whereas in case to these phenomena are neglected.
The simulations were performed by using the multiphase flow CFD solver Free Surface 3D (FS3D) by the Institute of Aerospace Thermodynamics (ITLR)
The HDF5 Data can be viewed with Paraview, by opening the fs3d.xmf file which contains the data structure.
Dataset
The Marangoni.tar file contains two folders for the simulations which take solutocapillary convection into account (with-marangoni) and which do not (without-marangoni). Both folders contain the following files:
fs3d.xmf Timeline of the hdf files, contains the data structure,
netz_xyz.hdf: Grid corner points,
funsXXXX.hdf: Volume fractions of liquid phase f,
velvXXXX.hdf: Velocity field (u,v,w),
sigmXXXX.hdf: Field of the surface tension coefficient sigma.
The folder with-maranongi contains additionally the following files
do_xXXXX.hdf: Gradient of the surface tension coefficient in x-direction,
do_yXXXX.hdf: Gradient of the surface tension coefficient in y-direction,
do_zXXXX.hdf: Gradient of the surface tension coefficient in z-direction.
For both cases 19 time steps have been written out (XXXX --> 0000-0019).
Simulation details
Dimension in x-, y-, and z-direction: 1.2 x 0.6 x 0.6 cm
Equidistant grid cell arrangement: 512 x 256 x 256 cells
Initialized center of water drop: (0.45, 0.3, 0.3) [cm]
Initialized radius of water drop: 0.1495 cm
Initialized center of ethanol drop: (0.75, 0.3, 0.3) [cm]
Initialized radius of ethanol drop: 0.1495 cm
Densities:
of water: rho_H2O = 0.998 g/cm^3,
of ethanol: rho_C2H6O = 0.789 g/cm^3,
of air: rho_air = 0.00119 g/m^3.
Dynamic viscosities:
of water: mu_H2O = 1.002 mPa s,
of ethanol: mu_C2H6O = 1.2 mPa s,
of air: mu_air = 0.18 mPa s.
Surface tensions:
of water-gas interface: sigma_H2O = 72.75 g/s^2,
of ethanol-gas interface: sigma_C2H6O = 22.55 g/s^2.
