We are very happy to welcome Dr. Emna Mejri from the National Engineering School of Tunis as a visiting scientist at the Chair of Hydromechanics and Hydrosystem Modelling of the Institute for Modelling Hydraulic and Environmental Systems (IWS) from July 6th to 30th, 2021. Together with Prof. Rainer Helmig, Emna is leading a DAAD project entitled "EVASAL: Environmental applications of evaporative salt precipitation in porous media: numerical modelling and experimental investigations". During her stay, she continued her research with the Stuttgart group.