Sendrais a two-phase 1D black-oil simulation model used for analyzing single SCAL experiments as well as several SCAL experiments simultaneously. It is tailor-made for revealing relative permeability and capillary pressure from two-phase and multi-phase flow experiments performed in the SCAL laboratory. Sendra covers oil-water, oil-gas, as well as water-gas experiments and both imbibition and drainage, is handled. A third stagnant phase can easily be included.