You can start Polydata (that is, the data generator) by double-clicking the Setup cell in a Fluid Flow (Polyflow) analysis system or a Polyflow component system. Polydata launches and loads the Setup cell’s input data (for example, mesh) and the Setup cell’s local data, if it exists (for example, Polyflow data). Note that if you have local data and then you decide to change the mesh and update the system, Workbench will run consistency checks to make sure the revised mesh is compatible. If no mesh has been created or imported into the system, Polydata cannot be launched.