Shelter Effect of Pedestrian Wind behind Row Trees in a Line Arrangement

Flow past a single-line arrangement of evenly-spaced row trees, in an open territory, was numerically simulated under the action boundary-layer type oncoming flow, with strength “strong breeze”, based on Beaufort scale. By selecting Koelreuteria henryi as demonstrated tree species, spatial wind speed variations behind trees at pedestrian level, various heights and spaces, were analyzed to investigate corresponding downstream shelter effects from systematic basis. Based results analyses, tendency stream-wise presented so provide additional insights into row-tree planning for protection against ground wind. Moreover, other cases similar crown shapes properties, resulting flow fields spaces can referable quantitative information, which be readily used conduct tentative effect assessments comfort evaluations preliminary stage.