Wind tunnel test on windproof benefit of horniness HDPE sand barrier

ObjectiveThe objective of this study was to research the benefit of horniness HDPE sand barrier on windproof.

MethodWe have made horniness HDPE sand barrier model of different heights (1, 2 and 3 cm), lengths (10, 15 and 20 cm), and porosity (0.5 and 0.6) according to the 1:10 ratio. We simulated the vertical flow field map and the horizontal flow field map of stable wind speed grid under different configuration modes by laying out the measuring points, and used the geostatistical method to carry out spatial autocorrelation analysis.

ResultIn the spatial autocorrelation analysis, there were 16 kinds of sand barriers in 18 different configuration patterns conforming to the Gauss model, 2 conformed to the spherical model, and the R² of all the models was higher than 0.97, the spatial correlation was less than 25%, and the change range was larger than the distance between the measuring points. It showed that the different sand barriers all had strong spatial autocorrelation, and the distance between measuring points was reasonable. The airflow can smoothly cross the pores when passing through the sand barrier, which will not cause the lifting and acceleration of the air flow. Therefore, the wind speed near the surface and above the barrier was lower than the control wind speed at the same height. The wind-proof performance of the horniness HDPE sand barrier was positively correlated with the height within the variable gradient range set in this study, and negatively correlated with the side length and porosity.

ConclusionThe horniness HDPE material has stable properties, no plastic deformation, strong anti-aging ability, good windproof effect and good application prospects.