Aerodynamics Automobiles 146 Airplanes 104 Design and construction 98 Fluid dynamics 57 Motor vehicles 54 Data processing 53 Air flow 52 Helicopters 38 Aerofoils 36 Flight 32 Mathematical models 32 Wind tunnels 28 Automobiles, Racing 27 Buildings 27 Mathematics 27 Flight control 25 Wind-pressure 25 Performance 22 Computer simulation 20 Drag (Aerodynamics) 20 Wind turbines 20 Dynamics 17 Aeronautics 16 Axial flow compressors 16 Computer programs 16 Wings 15 Computational fluid dynamics 14 Simulation methods 14 Trucks 14