Hysteresis, Multiphase flow, Nonaqueous phase liquids, Numerical models, Physical models
Journal of Contaminant Hydrology
Department of Civil and Environmental Engineering

van Geel, P, & Sykes, J.F. (1997). The importance of fluid entrapment, saturation hysteresis and residual saturations on the distribution of a lighter-than-water non-aqueous phase liquid in a variably saturated sand medium. Journal of Contaminant Hydrology, 25(3-4), 249–270. doi:10.1016/S0169-7722(96)00038-1