The windbreak effects on pedestrian level wind speed reduction were examined in a series of generic layouts, both in wind tunnel and by CFD modeling. The effects on the horizontal wind-speed reduction curves were examined as well as the horizontal velocity contours. The 2D and 3D windbreak were both applied in the CFD simulations, with different positions and limited range of incidence angles to the wind.
Keywords. windbreak; wind tunnel; urban; open space; landscape; CFD
J.K. Raine, and D.C. Stevenson, 1977, Wind protection by model fences in a simulated atmospheric boundary layer, Journal of Industrial Aerodynamics, 2, 159-180
Wilson, J.D. 1987, On the choice of a windbreak porosity profile, Boundary Layer Meteorology, 38, pp37-49.
Heisler, G.M. and Dewalle, D.R., 1988, Effects of windbreak structure on wind flow, Agriculture, Ecosystems and Environment, 22/33, pp41-69
H.I. Rosten and D.B. Spalding, The PHOENICS beginner's guide. TR/100. CHAM Ltd., London, 1984.
ESDU 84011, Wind speed profiles over terrain with roughness changes, July, 1984, ESDU International.
Bean, A., Alperi, R.W., Federer, C.A. 1975, A method for categorizing shelterbelt porosity, Agricultural Meteorology, 14, pp417-429.
Nageli, W. 1964, On the most favourable shelterbelt spacing, Scottish Forestry, 18, pp4-15.
Plate, E.J. 1971, The aerodynamics of shelterbelts, Agricultural Meteorology, 8, pp203-222.
Li, W., Wang, F. and Bell, S. 2003, Windbreak sheltering effects on outdoor open space, Building Simulation 2003.
How to cite this article
Li, W., Wang, F. and Bell, S. (2003). 'Modeling airflow in an urban landscape'. SET Proceedings, 2(1), pp. 247-251. https://doi.org/10.65582/set.2003.055
