DCM plugin for partially percolating LBM single phase flow

The plugin is an implementation of the partially percolating lattice Boltzmann model (PP-LBM) with locally varying voxel effective percolating fraction for single-phase flow.It has been used to simulate flow and determine permeability of two real-world rock samples as published by Li et al (2014) in PHYSICAL REVIEW E 90, 033301 (2014);Journal of Shanxi University(Nat.Sci.Ed.) 38(2):289-297,2015;10th International Conference on CFD in Oil & Gas, Metallurgical and Process Industries,SINTEF, Trondheim, Norway,17-19 June 2014. The effective percolating fractions of voxels were estimated using the DCM software (Yang et al, CSIRO Data-Access Portal - https://data.csiro.au/dap/landingpage?pid=csiro:9448) generated volume fractions. More information about DCM is available at http://research.csiro.au/dcm/ and https://en.wikipedia.org/wiki/Data_constrained_modelling.- The plugin requires voxel-based percolation fraction, plus other parameters as the following: + Effective percolation fraction channel index + Fluid speed channel index + Maximum iterations for computation + Display interval + Voxel physical size in microns- The plugin can estimate the effective percolation fraction using void and calcite volume fractions as detailed in above quoted papers. The input parameters are the following: + Void volume fraction channel index + Calcite volume fractions channel index + Fluid speed channel index + Maximum iterations for computation + Display interval + Volume fraction of Calcite + Voxel physical size in microns