This video shows the realistic "Airflow over canopy roofs" in RWIND Simulation. RWIND Simulation can generate the exact wind flow for the first case in EN 1991-1-4 Section 7.3 Figure 7.15 (empty, free-standing canopy (φ = 0)) and export the resulting loads to RFEM.
RWIND Simulation is a stand-alone program for CFD simulation of wind flows around buildings or any other objects and generating wind loads, i.e. forces acting on these objects. Wind pressure and suction forces can be imported as loads into the structural analysis software RFEM or RSTAB.