The Effects of Wind Angle on the Effectiveness of Erosion Control Structures
Roughness elements experiments have been conducted at the Owens lake playa to control harmful PM10 emissions. These maps of shear stress magnitude result from a 3D simulation of flow over box-shaped roughness elements, used for erosion control. Flow is from left to right. The rotated element is shown to be less effective in reducing shear, though it has a greater frontal area exposed to the wind direction. This underscores the importance of 3D simulation in predicting atmospheric boundary layer flows. Simulations were conducted by solving the incompressible Navier-Stokes equations with OpenFOAM.