Multiphase LBM-DEM Coupling for Unsaturated Granular Media *N. Younes (University of Calgary, Calgary), R. Wan (University of Calgary, Calgary), O. Millet (LaSIE, University of La Rochelle, La Rochelle), A. Wautier (INRAE, Aix-en-Provence), F. Nicot (University of Savoie Mont Blanc, Chambéry)