Figure 3. Effects of Surface Roughness on Drag

From

A Review on the Study of Wind Loads on Multiple Cylinders with Effects of Turbulence and Surface Roughness

Zawad Abedin, Md. Quamrul Islam, Mousumi Rizia, H.M. Khairul Enam

American Journal of Mechanical Engineering. 2017, 5(3), 87-90 doi:10.12691/ajme-5-3-3