Abstract: The invention relates to a real-world simulation device suitable for being installed in a computer designed to support a multitask programming environment (23). The device comprises a simulation manager (30), capable of working in asynchronous chaotic mode by repetitive sequences (31) on distinct simulation elements (40-70). Each simulation element works with at least one space/time datum, termed the structure point. A space/time datum includes a property datum, defining a current state of the structure point, and designates a function, applicable for modifying this current state. Said simulation manager (30) comprises two coupled simulation sections, namely a first and a second section, that are designed to simulate respectively a fluid medium and a solid body in the presence of said fluid medium.