Journel : J. Wind Eng. Ind. Aerodyn. 142 (2015) 53–64
Author : Se-Woon Hong , In-Bok Lee, Il-Hwan Seo
Abstract
The use of windbreak fences has become a common practise to reduce wind erosion and dispersion of soil
particle or spray-drift in potentially risky areas. For effective and economical use of windbreak fences, this
paper introduces regression equations to predict wind speed reduction by windbreak fences based on their
screen porosity, fence height and wind speed. The prediction equations provided straightforward procedures
to predict the effects of a single fence and multiple-fence arrays. The equations were developed by
non-linear regression analysis based on data obtained from computational fluid dynamics simulations,
which were validated in advance by wind-tunnel tests and experimental data of literatures. The prediction
equations, derived by a genetic algorithm, for a single fence showed good agreement with the simulation
results, with R2¼0.99. The equations for multiple fences were derived from the product of the equations
for a single fence and also showed good agreement with the simulation results.
Keywords: CFD, PUV, Porous fence, Non-linear regression, Multiple fence arrays
Download Link :
https://doi.org/10.1016/j.jweia.2015.03.007