The StrömungsRaum (www.stroemungsraum.de) is a web-application which gives the possibility to define and start a complete 3D CFD simulation with only a few initial values and parameters and without any previous knowledge. Furthermore, you have the possibilitiy to explore the 3d model of the geometry which you want to simulate in a free zoomable, rotating view. Thus, you can define important components for your simulation, like certain planes and edges, directly with your computer mouse straight from your own PC. This reduces the latency and effort of the specification and implementation of the simulation as well as it saves much costs. Like in a technical center, almost everything can be changed and explored.