Author(s)

M. Wichmarin-Fiebig

Abstract

Wind data recorded by an ultrasonic-anemometer over a time of eight months were used to validate a nonhydrostatic microscale model Observations took place in the vicinity of a pigsty at a height of 9.5m above ground. The height of the building was about 8m. Model runs were performed with various wind speeds and directions as well as different thermal stratifications. Comparison between observations and model results in general showed good agreement. However, downdrafts in the lee circulation were overestimated by the model Sensitivity to thermal stratification showed to be neglectable concerning observations as well as model results. 1 Introduction Dispersion modelling in the vicinity of buildings is of growing importance in recent time. However this requires determination of the wind field taking into account the influence o

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