Wind speed acceleration around a single low solid roughness in atmospheric boundary layer.

ABSTRACT: Air flow around vegetation is crucial for particle transport (e.g., dust grains, seeds and pollens) in atmospheric boundary layer. However, wind acceleration around vegetation is still not well understood. In this work, air flow around a single low solid roughness element (representing a dense shrub patch or clump) in atmospheric boundary layer was numerically investigated, with emphasizing wind acceleration zone located at the two lateral sides. The maximum value of dimensionless horizontal wind speed as well as its location of occurrence and the geometrical morphology and area of wind acceleration zone were systematically studied. It reveals that they could alter significantly with the change of roughness basal shape. The maximum value of dimensionless resultant horizontal speed decrease

SUBMITTER: Fu LT 

PROVIDER: S-EPMC6700104 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature