DEM simulations of size-segregation during bedload transport

This depository contains the data of all DEM simulations used in the publication Chassagne, R., Maurin, R., Chauchat, J., Gray, J., & Frey, P. (2020). Discrete and continuum modelling of grain size segregation during bedload transport. Journal of Fluid Mechanics, 895, A30. doi:10.1017/jfm.2020.274, as well as post processing scripts to use the data.

The simulations are located in two folders, fine/ (simulations for which the amount of fine particles is varied) and sizeRatio (simulations for which the size ratio between large and small particles is varied). The data of each simulations are contained in separate subfolders named after the simulation. For example, Fine2R1.5/ corresponds to a simulation with 2 layers of small particles and a size ratio of 1.5. For each simulation, the time data are saved in data.hdf5 and averaged data in average.hdf5. A GeomParam.txt file is also in each folder. It contains information of the simulation that the  post processing programm will read. The python script used to initiate the YADE-DEM simulation  is also given for information (it contains all parameters of the simulation).

The post-processing program has been coded in python2.7 with an oriented-object procedure.  The h5py package is necessary to read the .hdf5 files. The scripts do not work in python3, but can be  very easily adapted if necessary (you only have to modify the "print" functions).  The scripts are available in ScriptsPP/ and are organized as follow. A mother class in SegregationPP and two child classes SegFull (to load the full time data set) and SegMean (to load only average data). A script examplePP.py is proposed and shows how to manipulate theses classes and the data.