Reynolds number Turbulence 11 Turbulent flow 9 Atmospheric thermodynamics 7 Reynold number 7 Boundary layer flow 6 Boundary layers 6 Shear flow 6 Turbulent boundary layers 6 Vortex flow 5 Aspect ratio 4 Channel flow 4 Direct-numerical-simulation 4 Low Reynolds number flow 4 Shear stress 4 Turbulence simulation 4 Wakes 4 Wall flow 4 Wall shear stress 4 Wall-shear stress 4 turbulence simulation 4 Cylinders (shapes) 3 Low Reynolds number 3 Particle-fluid flow 3 Velocity measurement 3 Wind tunnels 3 particle/fluid flow 3 turbulent boundary layer 3 Angle of attack 2 Angular momentum 2