The ejectorPL team is a group of researchers from the Silesian University of Technology in Gliwice working on the ejector design for various applications. The main aim of our research is to help the customer by design the ejector shape with optimum efficiency. Therefore, the advanced computational tool called ejectorPL was developed to offer the best solution based on the computational fluid dynamics simulations. The fields of interest are mostly focused on the single-phase and two-phase ejectors for refrigeration applications with a special interest to the low-GWP refrigerants and natural fluids. The background of our work originates from the international cooperation devoted to the numerical investigation of the carbon dioxide (R744) two-phase ejector.