Fig. 2
Diagrammatic sketch of wind velocity increasing methodology and effects of wind treatments. a Wind velocity increasing method. Ain is the interface area of the wind flow coming in and Aout is the interface area of the wind flow going out. Vin is the initial in-coming wind velocity and Vout is the wind velocity of air flowing out. s is the length of the short side of the wind funnel, and l is the length of the wind baffle. b Diurnal mean wind velocity pattern (mean ± SE) over 24 h under wind treatments throughout the experimental period. c Diurnal maximum wind velocity pattern (mean ± SE) over 24 h under wind treatments throughout the experimental period. d Effects of wind treatments. The black dashed line with the equation (\(\text{y}=\frac{(s+\sqrt{2}l)}{s}x\)) represents the ideal wind velocity that could be reached by acceleration. The black dashed line with the equation (y = x) represents the wind velocity in the ambient treatment (CK). Red dots and line represent the relationship between the temporally matched hourly maximum wind velocity in I and CK. Blue dots and line represent the relationship between the temporally matched hourly maximum wind velocity in D and CK. Regression equations and R2 are given. D means decreased wind velocity treatment, CK means ambient wind velocity treatment, and I means increased wind velocity treatment