Table 2.

Significant statistics of the probability distributions of normalised difference of K values (ϕ(K)) of the four twisted wind flows.

ϕ(K)	Wind flow
	TWP13-CW	TWP22-CW	TWP13-ACW	TWP22-ACW
Minimum	−1.712	−2.645	−2.506	−2.611
Maximum	0.700	0.757	0.702	0.758
Mean	−0.063	−0.043	−0.081	−0.063
Standard deviation	0.233	0.357	0.266	0.370