Open AccessOn the estimation of wind comfort in a building environment by micro-scale simulation
Author(s) -
Günter Groß
Publication year - 2014
Publication title -
meteorologische zeitschrift
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 58
eISSN - 1610-1227
pISSN - 0941-2948
DOI - 10.1127/0941-2948/2014/0577
Subject(s) - scale (ratio) , estimation , environmental science , meteorology , computer science , marine engineering , engineering , geography , cartography , systems engineering
A three-dimensional micro-scale model is used to study some aspects of wind comfort in a built-up area. The equations for calculating the mean wind have been extended by a Markov approach for short-term wind fluctuations. The model components have been successfully verified against wind tunnel measurements and observations of a field experiment. The simulated time series are used to estimate wind comfort measures. It turns out that the frequency of exceedance of prescribed thresholds depends strongly on the specification of the gust duration time. It was also possible to calculate the spatial distribution of a gust factor g$g$ depending on local wind characteristics. The simulated range is much broader than a value of g=3–3.5$g=3\text{--}3.5$ commonly used for wind comfort assessments. Again, the order of magnitude and the bandwidth of g$g$ depends strongly on the definition of a gust