In: Mechanical Engineering
For a homogenous surface ?0 is a constant and, therefore, it would be expected that the same value for ?0 would result for further measurements. However, in this measurement set-up different values of ?0 would be observed for different wind directions. Can you guess what might be the reason for that? Explain your thinking.
Whatever be the significance of z0 the reasons how the wind direction effect the property are same . Please forgive me for any spelling mistake and do comment for any short of queries. Please inform me if you designify z0 for any particular field.