Design research project and flow simulation. Concept presented is well suited for an outdoor installation in cities and parks, bring interactivity and beauty combining architectural elements, light illumination and projections. Project requires a large amount and water and secure powerful pump equipment. The main part of the research was to investigate the Coanda effect in combination with design of the fountain. The Coanda effect has been simulated in Flow 3d, the effect helps to evaluate geometry of the object and make required design changes.